Latest / Pediatrics Now: Cases Updates and Discussions for the Busy Pediatric Practitioner / Let Babies Eat: New Guidelines to Prevent Food Allergies
Transcript
- 0:00I'm Holly Wehmint, and this is Pediatrics Now, cases, updates,
- 0:04and discussions for the busy pediatric practitioner.
- 0:07Today, I'm bringing you Grand Rounds, a fascinating talk.
- 0:12Let the Babies Eat, a practical guide for food introduction and allergy prevention.
- 0:17He's a professor of clinical pediatrics and the director of the Food Allergy
- 0:21Treatment Center at Nationwide Children's Hospital and the Ohio State University College of Medicine.
- 0:27Let's listen in. It's a pleasure to be with you today. What I'm going to talk
- 0:32about is something near and dear to my heart.
- 0:33And as you see, as we go through things, I hopefully will present information
- 0:37and a new perspective for you all that may hopefully adjust the way that you
- 0:41communicate with families.
- 0:43And here are the objectives. We're going to talk about the confusion surrounding infant feeding.
- 0:47I'm going to give you the best practical advice I possibly can,
- 0:50and then really talk about ways we can anticipate parental concerns during those
- 0:54visits that you have with them throughout your day.
- 0:57Here's my goal. So I want to give you new perspective. Everything I talk about
- 1:01will be evidence-based information.
- 1:02This isn't just Dave's opinion here. This is me serving as a conduit to give
- 1:06you all the published guidelines and research and things like that,
- 1:10and then hopefully help you appreciate your very important role in helping families
- 1:15feed their babies and ideally prevent food allergies.
- 1:18So when we talk about this, we have a lot of outdated information,
- 1:21which I'm going to address sort of right off the bat.
- 1:23We have wonderful new evidence and guidelines, which I'll share with you.
- 1:27And this is how we develop progress. And I think it's a good thing for all of
- 1:30our families and their babies.
- 1:32So before we begin, I think it's always important to acknowledge the enormous
- 1:37elephant in the room when it comes to this topic,
- 1:39because I think we've done a very good job as a medical establishment at confusing
- 1:45parents and frankly, scaring them at feeding their babies.
- 1:48And a lot of it has to do with our own guidelines and flip-flopping evidence and things like that.
- 1:53So I think if we go in this with some humility and when we talk to parents about
- 1:57how this is what we once thought it was, and this is where we are today and
- 2:00acknowledge how confusing it has all been, I think that's a very good starting place for all of us.
- 2:06So how did all this start? Well, in the year 2000, the AAP published guidelines
- 2:11in regards to food allergy and feeding infants.
- 2:14And it basically said no milk until one year of age, no eggs until two,
- 2:18no nuts, peanuts, or seafood until three. If you're pregnant or breastfeeding,
- 2:22avoid all of these things.
- 2:23Just eight years later, which is a remarkable turnaround when it comes to national
- 2:27guidelines, they said, well, hold on a second.
- 2:29Maybe we don't need to avoid these things, but if you feel like it, you can introduce them.
- 2:34It wasn't an active guideline to recommend get these foods in the diet.
- 2:38It was more of a passive suggestion.
- 2:39But just within eight years, it's very confusing. And a lot of people still
- 2:42held on to the 2000 guidelines.
- 2:452015 was a pivotal landmark trial. I'm sure you're all familiar with the LEAP trial.
- 2:49This was the first prospective randomized controlled trial that demonstrated
- 2:53if we introduce peanut into an infant's diet before a year of age and keep it
- 2:57in their diet consistently up till five years of age, compared to those infants who avoided it,
- 3:02there was an 86% reduction in peanut allergy at five years of age. This was remarkable.
- 3:06This changed everything for us in regards to our understanding of tolerance
- 3:09and food allergy prevention.
- 3:122017, I was part of the US guidelines that we wrote and we said we should test
- 3:16babies for peanut before introducing it when they're at risk to develop allergies,
- 3:20specifically those with moderate to severe eczema. That was based upon one study.
- 3:24I frankly think we jumped the gun a little bit, and we're going to talk about
- 3:27screening and things like that.
- 3:28And then in 2021, we also reversed and wrote the North American guidelines,
- 3:32which basically said no need to test.
- 3:34So flip-flop after flip-flop after flip-flop. All that to say is,
- 3:38did we fix it? We have no idea.
- 3:40This is a hard thing to study in regards to prevalence of food allergy.
- 3:45I'll share some data about how we're still not consistent with talking to families,
- 3:49but this is why it's been so confusing for all of us.
- 3:53There was a survey a few years ago talking to U.S. parents, 3,000 of them.
- 3:58Only 13% were aware of the peanut guidelines. Half of them didn't really understand
- 4:02that if you introduce foods early, we could prevent food allergies or decrease the risk.
- 4:07Half still felt that it wasn't safe to introduce peanut prior to 12 months of age.
- 4:10And then 40% said their pediatrician never really discussed this with them.
- 4:14So that was a few years ago.
- 4:15We don't have really good data
- 4:17since then, but this is something that we need to continue to monitor.
- 4:20So here's a common scenario. When it comes time to introducing foods to babies,
- 4:26a lot of parents are just scared out of their minds.
- 4:28I don't know about all of you, but I have families tell me that they've driven
- 4:31to the parking lot of the emergency room before they feed peanut to the baby
- 4:34the first time. And that's heartbreaking because this should be a really fun
- 4:37milestone when we start introducing solid foods to babies and we want to try
- 4:41to provide that reassurance.
- 4:43There's a lot of messaging that's been displayed over the years,
- 4:47but I'd like to correct some of that with the actual evidence.
- 4:49So for years, I think people have been told that babies are more at risk to
- 4:53have severe reactions because they're small, they're nonverbal,
- 4:56they have little airways.
- 4:57The reality is it's extremely unlikely for a severe reaction to be the presenting food allergy reaction.
- 5:04Almost always, 97% of the time, it's going to be some combination of hives.
- 5:08Maybe they vomit once or twice.
- 5:09That's how I get patients as a pediatric allergist. I don't get patients because
- 5:12they end up in the ICU the first time they ate peanuts.
- 5:15So we really want to reassure families, even when food allergy reactions occur,
- 5:18they're almost always more mild and self-resolved.
- 5:21I don't know where this came from. It's a very conservative approach to introducing
- 5:24foods, but the message has been only one new food every five days,
- 5:28seven days, once a month, things like that.
- 5:30There is zero evidence to support this. This is an ultra conservative approach.
- 5:35And now I'll share evidence with you where we actually want to promote,
- 5:38let's give multiple foods even all at once, because odds are nothing's going
- 5:41to happen. And if something does happen, we can go back and sort it out and
- 5:44clarify what's going on.
- 5:46Some parents have been told to just rub a little bit on their skin first.
- 5:49We don't want to do that for two big reasons.
- 5:51One, you're going to get nonspecific rashes that's going to raise alarm and
- 5:54cause unnecessary angst.
- 5:56And number two, that's a great way to sensitize people to allergens,
- 5:59whereas we want them to eat it to promote tolerance and expose it to the amazing
- 6:02immune system involved in the gut.
- 6:04The message has always been, well, food allergies can occur the third time you
- 6:07feed your baby or the fourth or the seventh, and you're never really out of
- 6:09the woods. Your baby's a ticking time, Tom. taking time bomb.
- 6:13The reality is no matter what we do, 92 to 95% of babies will never develop a food allergy.
- 6:18So we want to flip this on its head and reassure people. And I'll talk about
- 6:21risk factors in a moment.
- 6:22And then the message has been that eczema must be because of something you're
- 6:25eating. And that is completely false. And I'll share all that with you as well.
- 6:28So I just want to lead off with the bat of some of the flip-flopping and inconsistent
- 6:32sort of recommendations that have been placed over the years and where we are
- 6:35with our current understanding.
- 6:36So let's talk about some of the hot topics right off the bat.
- 6:40And then we'll talk about some practical tips.
- 6:43Atopic dermatitis or eczema and allergies are intricately linked,
- 6:46but allergies don't cause eczema.
- 6:49Eczema is a chronic skin condition hallmarked by a defective skin barrier with
- 6:52a very complex immune pathology underneath the skin.
- 6:56And allergies can play a role, but that's not why people have eczema.
- 7:00When we look at systematic reviews, this is a great one published in the last couple of years.
- 7:05We look at, does food elimination improve eczema?
- 7:09I'll cut right to the chase. Dietary elimination may lead to a slight improvement
- 7:14in eczema severity for some patients, typically those with the most severe eczema
- 7:18that's refractory to treatment.
- 7:19However, the degree of benefit is potentially unimportant compared with the
- 7:23risk for harm because what happens is if we start removing food from the diet
- 7:27of babies with eczema and they're already making IgE but they're not reacting
- 7:30to that food and then they avoid it,
- 7:32that's when they can develop an actual food allergy that can transition to high
- 7:36and anaphylaxis. So that can cause real harm.
- 7:38The most recent atopic dermatitis guidelines or practice parameters were published about a year ago.
- 7:43There is a recommendation we suggest against the use of elimination diets.
- 7:48Again, it can cause harm. It's not going to provide much benefit.
- 7:52And most importantly, right now for atopic dermatitis, we have dozens,
- 7:55dozens of effective therapies. And we're moving beyond just topical corticosteroids.
- 7:59We have calcineurin inhibitors. We have JAK inhibitors.
- 8:01We have biologics. So we can fix the skin without removing food from the diet.
- 8:07This is one of the most common diagnoses that I see at our Food Allergy Treatment Center.
- 8:10It's L24.6, irritant contact dermatitis due to food in contact with the skin.
- 8:14We have a beautiful blonde-haired, blue-eyed, fair-skinned baby who starts to
- 8:18eat things like tomatoes and strawberries and ranch dressing and citrus,
- 8:22and they get rashes around their mouth every time they eat.
- 8:25This is not a food allergy. These children are often well-appearing.
- 8:28The foods that are causing these rashes are uncommon causes of food allergies,
- 8:32such as fruits and purees and things like that.
- 8:35This can come and go over time and this can occur for dozens of foods.
- 8:38So we always want to make sure we clarify the diagnosis, but we don't want to
- 8:41raise alarm when we have a well-appearing infant who gets a rash when they eat
- 8:44cinnamon and things like that.
- 8:46Other things that are not due to food allergy. So we know that colic is not a food allergy.
- 8:51Reflux is not a food allergy. It's a physiologic condition. These are things
- 8:54that you can find online and social media.
- 8:56Fatigue, chronic abdominal pain, migraines. It's interesting because these are
- 8:59some conditions that may be worsened by certain food.
- 9:02Like we know migraines may be triggered by foods that have tyramine,
- 9:05for instance, or caffeine.
- 9:06You're not allergic to those foods. You have the condition that may be worsened
- 9:09by that same thing with reflux.
- 9:11I have reflux. If I eat a dozen buffalo wings, it acts up. I'm not allergic
- 9:14to buffalo wings, but that's an example of that.
- 9:17Diaper rashes are not caused by food allergy, changes to the bowel pattern,
- 9:21chronic hives are not caused by food allergy, same thing with bloating and things like that.
- 9:25So when we see these very common concerns from parents, we can reassure them
- 9:28that it's not due to an allergic reaction to any specific food.
- 9:32Then we talk about this nebulous diagnosis of quote-unquote cow's milk allergy.
- 9:37And there was a recent review of the guidelines published regarding cow's milk
- 9:42allergy over the past decade.
- 9:43And basically they attributed this diagnosis to every symptom imaginable from
- 9:47rashes to colic, to poor sleep, to reflux and things like that.
- 9:51They also talk about how maternal breast milk really doesn't contain a lot of allergenic protein.
- 9:57So 99% of the time it's not going to pass through and cause any symptoms.
- 10:01And then there is a conspiracy because a lot of these guidelines are actually
- 10:04written by folks who have conflicts of interest because of their work with industry
- 10:07and former manufacturers.
- 10:08And there was an interesting review in JAMA Pediatrics a few years ago that
- 10:11looked at recent guidelines, and they found that a lot of them actually included
- 10:14symptoms that are just nebulous and not really due to allergies,
- 10:18such as just rashes or colic or reflux or things like that.
- 10:21And they also looked at maternal diet. It rarely, if ever, passes intact cow's
- 10:26milk protein through the breast milk when they're breastfeeding.
- 10:28And some of these guidelines, there are significant conflict of interest with
- 10:31people who had connections with industry and formula manufacturers.
- 10:34So there are good guidelines now. It's through the World Allergy organization.
- 10:37There's a 12-part series.
- 10:39I encourage you to read this on your own.
- 10:42But this really talks about using milk elimination as a diagnostic and therapeutic trial.
- 10:47And it acknowledges that this diagnosis of cow's milk allergy is overused.
- 10:51It can also be underused.
- 10:52We talk about the elimination diet in a second. And then reintroduction.
- 10:55We don't need to wait until 12 months of age for dairy because a lot of times
- 10:58these are benign conditions that resolve on their own or it's actually not due to milk allergy.
- 11:03This is the most common presentation. I apologize for those of you eating breakfast right now.
- 11:06The cow's milk-induced allergic proctocolitis. You have an otherwise well-appearing
- 11:10infant who's growing normally, acting fine.
- 11:12You change their diaper and you see gross red blood or you have hemococl positive.
- 11:16That's the more common presentation for this. So when we go back to the guidelines,
- 11:19it talks about if you consider this diagnosis in an infant of cow's milk allergy,
- 11:24we can do a trial elimination diet.
- 11:26So if they're on cow's milk-based formula, you can put them on a soy formula.
- 11:29If we think that it is passing through maternal breast milk,
- 11:32we can do a maternal dietary elimination, but do it for two to four weeks.
- 11:36We don't need to eliminate it for six months or nine months.
- 11:38Do symptoms completely resolve?
- 11:40Then put milk back in the diet. Do symptoms come back again?
- 11:43If not, it's not cow's milk allergy or whatever it was it's resolved.
- 11:47If they do come back again, then remove it for a period of months at a time.
- 11:50If you take it out of the diet and symptoms do not completely resolve,
- 11:53it's not cow's milk allergy.
- 11:54Put it back in the diet and consider another diagnosis. So we can really use
- 11:58these much shorter elimination diets now.
- 12:00And the reason why is because the vast majority of these infants that have this
- 12:03diagnosis, there's another cause or is a self-limited benign condition.
- 12:07So I think we can just be more thoughtful and more helpful for families when it comes to this.
- 12:11And this goes for breastfeeding mothers as well. So I think it's now well-recognized
- 12:14that blanket recommendations for mothers to eliminate certain foods from their
- 12:18diet due to conditions in their infant really are probably incorrect.
- 12:22This is a great review article, and it really talks about how a thoughtful approach is necessary.
- 12:26And we want to minimize unnecessary diets. I have so many mothers in my practice
- 12:30that are just in tears because they've taken out dairy and egg and wheat because
- 12:34of improper reasons such as eczema in their infant or reflux or colic or stuff like that.
- 12:39And their baby either doesn't get better or they've gotten better just because
- 12:43tincture of time is what fixes this.
- 12:44And these mothers stop eating these foods that they blame themselves because
- 12:47they slipped up and had some butter in their meal or something like that.
- 12:50Here's the algorithm. So if you are going to recommend that a mother remove
- 12:53food from her diet, it really starts with what's the diagnosis.
- 12:57So are we diagnosed, what are we diagnosing the infant with?
- 12:59If it's eczema, as we talked about before, it's unlikely to be due to the diet
- 13:03and especially food passing through. So we don't need to even recommend that.
- 13:06Is it GI symptoms? Again, what's the diagnosis?
- 13:08If it's reflux, that's not going to be, you know, specific food related.
- 13:12Is it cow's milk allergy? We can do a trial elimination and things along those
- 13:15lines. So just being more thoughtful to help the families that we care for,
- 13:18I think is going to be important.
- 13:20And then lastly, this is a great review article that really looked at how much
- 13:23intact allergenic protein passes through breast milk, and they found that there's
- 13:29less than one in a thousand actually had intact allergenic protein passed through
- 13:33their breast milk. So it's pretty rare.
- 13:35Even in infants who have IgE-mediated peanut allergy anaphylaxis,
- 13:39those mothers don't need to stop eating peanut.
- 13:40They're not causing allergic reactions after breastfeeding.
- 13:43So again, it's a complete reversal of what many of us have taught.
- 13:47The way we've practiced, but it all goes back to just being more thoughtful
- 13:50and how we're recommending these things for families.
- 13:53All right. So now we talk about the outdated, incorrect approaches and these
- 13:57rapidly evolving new evidence and paradigms.
- 14:00It's enough to make your head spin. So let's talk about food introduction.
- 14:03We know that these babies that have eczema are raising their hands saying,
- 14:07I'm going to have an allergic life.
- 14:09So oftentimes their eczema resolves within the first one to two years.
- 14:12They may or may not develop food allergies. They may or may not develop environmental
- 14:16allergies as they get older than asthma.
- 14:18But this is the common progression that I see in my practice,
- 14:21at least on a regular basis.
- 14:22We can't prevent eczema, unfortunately. There have been many trials that have
- 14:26done that. They've been using emollients from day of life one.
- 14:28It can delay the onset or lessen the burden of it, but we can't actually prevent that.
- 14:32We can't prevent asthma. There's no interventions that can do that.
- 14:36There's no good way to prevent allergic rhinitis, but we do actually have ways
- 14:40that we can potentially prevent food allergy, which is what we're going to talk about next.
- 14:44So why should we try to do this? Well, we know that food allergies are relatively
- 14:47common. They affect about 8% to 10% of children, depending upon what studies you read.
- 14:51They can be lifelong, especially when it comes to peanuts, tree nuts,
- 14:55seafood, sesame. So it can be a big burden for throughout their lives.
- 14:58It can put them at risk to have allergic reactions. It can also cause decreased quality of life.
- 15:03While we do have treatment options available, we don't have a known cure for food allergies.
- 15:07So if this isn't a call to arms to do everything we can to try to prevent this
- 15:11from happening in the first place.
- 15:12I'm not sure what is. So what are risk factors?
- 15:15I think we can now stratify infants into low, medium, and high risk to develop food allergy.
- 15:21Family history is actually not a very strong risk factor. So we know that parents
- 15:25don't pass specific food allergies down to their babies.
- 15:27So we have a lot of parents that have their own history of peanut allergy and
- 15:30they're afraid to feed peanut to the baby, but that actually isn't a very strong
- 15:33risk factor. So we don't need to worry about that so much.
- 15:36The age of introduction can be a risk factor. If we delay this and we wait until
- 15:39kids are over a year of age, that may actually put them at risk to develop food
- 15:43allergies and then the severity of their eczema.
- 15:45So it's not like that little patch that gets better with some topical cortisone
- 15:49and it just keeps coming back over time.
- 15:51It's those infants that have a large body surface area that's affected,
- 15:54or they require more potent topical corticosteroids to control their disease.
- 15:58Those are the ones that are at highest risk.
- 16:00So the one thing we can modify, we can't change the family history.
- 16:03We can treat eczema, but we can't prevent it from happening,
- 16:05but we can modify the age of introduction. So that's what we can target.
- 16:09Now, hopefully we can all agree. And if you're not familiar with the literature,
- 16:12I'll go through some of that.
- 16:13But we have study after study after study and meta-analyses all showing that
- 16:18the earlier we introduce allergenic foods into a baby's diet and,
- 16:22most importantly, keep it in their diet consistently.
- 16:24It's not try a little dab with peanut butter and then wait six months before
- 16:28you try again. It's keeping it in the diet consistently and diversify their diet.
- 16:31This is our best path towards preventing food allergy. Is it 100% effective? No.
- 16:36Nothing we do in medicine is 100% effective, but this is what we want to recommend
- 16:40as much as we possibly can.
- 16:42However, we have to balance this. So for those families that if they don't hit
- 16:45this window and they haven't tried it, we want to reassure them that it's going
- 16:48to be okay and we can still introduce this.
- 16:50We don't need to avoid it because they haven't had it by 12 months of age or things like that.
- 16:53Here's just a nice little, you can see all the different odds ratios and things like that.
- 16:58So the meta-analysis, we have over 14,000 children that look at this.
- 17:02The evidence is strongest for peanut and egg, but it's also accumulating for milk and other foods.
- 17:07But I mean, it's robust evidence that early introduction and ongoing inclusion
- 17:11is the best path towards preventing allergy.
- 17:14But these are just some of the things that parents have been told traditionally of.
- 17:18My pediatrician told me to see an allergist before I introduced these foods.
- 17:21I'm too scared to give peanut. Again, as we talked about earlier,
- 17:24we've done a really good job of scaring parents and people want to be tested
- 17:27for everything or they think that their child's eczema is caused by food and stuff like that.
- 17:31So we can address this and reassure families as much as we can.
- 17:34But how do we make this happen? Well, it's going to take all of us.
- 17:37So you're on the front lines. You're meeting these families at their well visits.
- 17:40So this is hopefully a conversation, hopefully a conversation that even obstetricians are having.
- 17:45And there's been some interesting quality improvement studies that look at,
- 17:48you know, can we have this conversation about solid food and allergenic food
- 17:51introduction during pregnancy before the baby's even born?
- 17:54But we're going to have to do this, you know, all together and systematically to make this work.
- 17:58So the timing does matter. So we know that for prevention efforts,
- 18:02we really want to get this before the disease sets in.
- 18:05Earlier, the better. there's a risk that actually increases over weeks to months.
- 18:08So it's not like we want to go for between four to six months of age once they're
- 18:14already showing interest in eating other solid foods.
- 18:17So we want to start with the typical purees and things like that.
- 18:20And then we want to introduce the allergenic foods, but it's okay if they don't
- 18:23hit that window, but it does, the risk does increase after, you know,
- 18:26six months and in between six and 11 months. So that's what we want to promote.
- 18:30In addition, we want to, you know, use good science to talk to people about the latest evidence.
- 18:35So when it comes to anaphylaxis, there was a great update to our practice parameters
- 18:39that was published last year as well. And they address certain things with infants.
- 18:42So when it comes to infant anaphylaxis, I'll read some of the consensus-based statements.
- 18:46We suggest clinicians be aware that in infants and toddlers,
- 18:50age does not correlate with severity. As we talked about at the start of this,
- 18:53it's unlikely for infants to have truly severe life-threatening reactions the first time they react.
- 18:58We suggest clinicians be aware that anaphylaxis is unlikely to be an initial reaction.
- 19:02We suggest clinicians be aware that parents of infants and toddlers may report
- 19:05age-specific symptoms.
- 19:06So for babies that can't verbalize, maybe it's more subtle and it's just they
- 19:10have acute onset irritability and crying while they're developing hives after
- 19:14eating a food. That can be a presenting symptom.
- 19:16And most of these are going to be hives and vomiting and non-anaphylaxis.
- 19:19So when we look at all of the guidelines that have been published,
- 19:22it's interesting because the United States is the only one that has their latest
- 19:26guideline or the last guideline that recommends screening with testing prior to introduction.
- 19:30For the rest of the world, that's all looking at the exact same evidence.
- 19:34They suggest not testing before introduction. And we'll talk about why.
- 19:38So there's some pitfalls if we screen.
- 19:40So from a caregiver standpoint, we can cause undue anxiety. They may think that
- 19:44they have to have a test done for food allergy before they introduce the food,
- 19:47or there's really distrust in these changing guidelines.
- 19:49For the clinician, it is well established that IgE tests are grossly misinterpreted.
- 19:54That leads to overdiagnosis and misdiagnosis.
- 19:56It can give an inaccurate diagnosis and unnecessary avoidance.
- 20:00Plus, it takes time to get them in to get referred and tested and things like
- 20:05that. So we can delay the introduction and miss this critical window.
- 20:08And it's also not very cost effective. And, you know, with the disparities in
- 20:11access to specialists, we have to address that as well.
- 20:14So when we overdiagnose food allergy, this is where these screening tests come in.
- 20:19So there's no indication to ever order just like a panel of IgE tests for food allergies.
- 20:23And I know all of you have these folks coming into your practice saying,
- 20:26wouldn't it be great if you could just test your patient's blood,
- 20:29tell them everything they're allergic to?
- 20:30Well, that's not how these work. So the IgE tests only detect sensitization.
- 20:34They don't actually diagnose allergy.
- 20:35When we know 40% of children are sensitized to things like egg,
- 20:39milk, peanut, and shrimp, but only 5% are allergic, we're over-diagnosing the
- 20:43vast majority of them by using these tests.
- 20:45So we don't want to use these as screening tests. And we go back to the first
- 20:49days of medical school or undergraduate education, we talk about,
- 20:51all right, what makes a really good screening test?
- 20:53When we think about IgE tests for foods, it doesn't meet any of the criteria.
- 20:57So these have never been screening tests and they shouldn't be used like that.
- 21:01There's tons of false positives and they get grossly misinterpreted.
- 21:05So when we talk about those families that we're seeing, there's different ways
- 21:08we can have the conversation.
- 21:09So for those parents that are having the first baby, no concerns.
- 21:12My advice is just proactively discuss the benefits of early introduction.
- 21:15We want to introduce these foods in your baby's diet around four to six months
- 21:18of age and keep them in the diet on a regular basis.
- 21:20If it's their first baby and they have a lot of anxiety, we want to anticipate that.
- 21:24And then we can discuss the risks and benefits of different approaches.
- 21:27Talk about why we don't want to wait for testing. We don't need testing.
- 21:30We can provide reassurance as much as possible.
- 21:32And then for those that already have children that have food allergies,
- 21:36we want to proactively address this and say, listen, I know you went through
- 21:39this with your older child.
- 21:40Here are current recommendations. We can provide reassurance as best we can.
- 21:44And again, discuss the risks and benefits of the different approaches.
- 21:47But this is where the art of testing comes in. And believe me,
- 21:49I see parents every day that just, I need to see the negative result before
- 21:53I feed this to my baby. And I get it.
- 21:55So the medicine says don't do screening.
- 21:59But that's not real life and we have some families. So we want to identify those
- 22:03with true anxiety and really discuss the risks and benefits.
- 22:06And before I do any testing, I ask them, is this going to change how you do it?
- 22:10Like if we have a negative test, will you go home today and introduce these foods to your baby?
- 22:14Or I'll say, if we have an elevated test result, I'm not going to diagnose your
- 22:18baby with an allergy to something that I've never eaten, but maybe we'll do
- 22:21it here in the office. So here's my spiel.
- 22:23Feel free to borrow this at will. Take a screenshot. You have my slides.
- 22:27Here's what I say to families pretty much every day. There's no medical indication
- 22:30to test before introducing any food to your baby.
- 22:32I meet enough parents to know that some need to see a negative result to give them confidence.
- 22:36I'm happy to test for select foods if a negative result will help you go home and introduce today.
- 22:40If we see an elevated result, I'm not going to diagnose allergy,
- 22:43but we can easily have you introduce that food in my office if that's okay.
- 22:46So even after this, sometimes I say, now what foods would you like to be tested for?
- 22:51And every once in a while, they just say, well, everything. And I kind of go,
- 22:54all right, well, let's go back to the top. I can't test for everything.
- 22:58So why are parents so scared? So there's a lot, you know, our cognitive biases
- 23:02are very powerful forces in our lives. So, you know, they don't want to make the wrong call.
- 23:07They're riddled with what if scenarios and what if they introduce too early
- 23:11and cause a reaction? There's a lot of guilt that comes like that.
- 23:13They're more likely going to recall negative events than positive ones.
- 23:16So they're not going to go back and say, well, we introduced 25 foods and nothing happened.
- 23:20It's going to be that one food that may have caused rash or symptoms or stuff like that.
- 23:23They want to do everything they can to avoid that painful outcome and go for the easy stuff.
- 23:28The emotional state can really impact the decision they're making.
- 23:32We often see this, especially in babies that have not had a hard first couple
- 23:37months of life, whether it's colic or poor sleep or reflux.
- 23:40And these parents are exhausted and they're not quite sure what to do.
- 23:44And they really want to avoid any potential future regrets.
- 23:46So we can address all this with the way that we discuss this with families.
- 23:49But we also have to talk about why are we so scared?
- 23:52So there's a lot of conservative, you know, approaches towards,
- 23:54you know, pediatric care that have been adopted over the years.
- 23:58Most of us, you know, we're just really bad at assessing risk.
- 24:01And hopefully with all the evidence that I gave you today and the latest guidelines,
- 24:04it gives you that reassurance of like, hey, we're not actually going to harm
- 24:07these babies by doing this. And we're going to benefit a lot of them.
- 24:10And then ultimately, who are we to tell parents when to feed their baby?
- 24:13Like this is them feeding their baby.
- 24:15Like if they want to feed a food to them, that we shouldn't be telling them
- 24:18no. We should be supporting them and talking about it.
- 24:20So what's the risk if something does happen? Well, they could have a reaction
- 24:23at home. We may lose their trust after having that conversation.
- 24:26But what's the reward? Well, odds are they're going to do great.
- 24:29They're not going to have food allergies and that we're going to have a happy family.
- 24:33This is a really interesting phenomenon because we're never going to know which
- 24:36children we prevented food allergy from occurring in, right?
- 24:39So this is something we kind of have to go in, not with blind faith,
- 24:43but we don't know the outcome.
- 24:44If these kids don't develop food allergy, we don't know if that was going to
- 24:47happen with or without early introduction, but we sort of have to trust the process.
- 24:50So what are some practical approaches for all of us to take just for our own sort of understanding?
- 24:55I think it's important to assume the best, not the worst, because that's what
- 24:58the evidence shows is going to be the outcome the vast majority of the time.
- 25:01We can anticipate these concerns and talk about it at well visits,
- 25:04and we can provide them with education resources to help support them as best we can.
- 25:09Now we talk about like how much do we need to give and how often,
- 25:12you know, a lot of this is sort of made up based upon prior studies.
- 25:16So there's no exact amount. I don't want you to get hung up on details,
- 25:18but there's a great resource here in this chart.
- 25:20If you do want some families, especially those that are like engineers,
- 25:24they need to see the numbers and the details.
- 25:26And they say, do you tell me exactly when to do it? How much? And I'll hand them this.
- 25:29So when it comes to peanut, we can just use thinned peanut butter.
- 25:32There's peanut puffs that we can use peanut powder. We can mix into things.
- 25:35And we want to do this at least three times a week, one to two teaspoons.
- 25:38It's generally about two grams of protein.
- 25:41So when it comes to an egg, we want to cook this, chop it up as much as we can
- 25:45so they can tolerate it. This can be scrambled eggs or finger food.
- 25:48About a third of an egg is a good starting point.
- 25:50And then when it comes to dairy, we can do things like yogurt or just formula
- 25:54if they're taking that or cheese and things like that in two to four ounces.
- 25:57There's not great evidence for things like tree nuts, wheat,
- 26:00soy, sesame, and seafood, but these are some guidance that we can offer them.
- 26:03And really, especially when it comes to seafood, a lot of families don't enjoy
- 26:07seafood. So they say, do I need to force my child to eat this we don't have in our house?
- 26:11I say, listen, odds are they're not going to have an allergy to seafood,
- 26:15regardless of when you give it.
- 26:16If it's not part of your family's regular diet, I don't think you need to go
- 26:19out of the way to make sure that you give this on a regular basis.
- 26:23So there are ways that we can keep this simple. So if we focus on practical
- 26:26tips, this is something from the Canadian Allergy Society that really has a
- 26:30nice little infographic that walks through four main steps.
- 26:33We wanna give messages such as, keep in the diet as consistently as possible.
- 26:38Don't worry if you miss a day or two, but the point being, don't avoid it on purpose.
- 26:43It could be worse if you just give it like once every three or four months,
- 26:46that's how we may create allergies. So we wanna avoid doing that if we can.
- 26:49If for whatever reason they're not gonna do this, then we say,
- 26:51okay, that's fine. just, you know, avoid it.
- 26:53And we can deal with this as they get older. And then we need to make ourselves
- 26:57available if and when concerns arise.
- 27:00So when we talk about, you know, the advice that we give, it really depends
- 27:04on who's that person in front of you. Are they highly anxious?
- 27:07Well, then we can offer an office introduction. And now some of you may not
- 27:09be able to do that or feel comfortable doing that.
- 27:11That's where you hopefully have a good relationship with your community allergists.
- 27:15But this is something I recommend all the time. Like, listen,
- 27:17if you're too scared to do this, come to the office.
- 27:19My personal record was we introduced 11 different foods at the same time to a nine-month-old.
- 27:24She got a little rash on her chin. Her mother was highly anxious,
- 27:28wondering if I was going to send her down to the emergency room.
- 27:29And I said, no, no, this is fine.
- 27:31This is not an allergic reaction. So it was a wonderful visit to give reassurance.
- 27:36Or if we want to start at home, start with the stuff that doesn't cause allergies,
- 27:39fruits and vegetables, cereal, grains, things like that.
- 27:43If they're moderately anxious, you can say, listen, if you have concerns with
- 27:47some of the allergenic foods. It's okay to do it at home.
- 27:50Offer a few small bites and take a break.
- 27:52Monitor them for the next five or 10 minutes. If they're not fussy,
- 27:55if they're not developing hives on their skin, basically double the amount they're
- 27:58getting every 10 minutes or so till they eat a serving size.
- 28:01And then that can give reassurance as well.
- 28:03If they're mildly anxious, then we can say we can do this at home.
- 28:07We can try several foods in the same group all at the same time.
- 28:10And then if something occurs, we can go back and clarify what the cause was.
- 28:13And if they're not anxious at
- 28:14all, just talk about how they can offer several new foods in any amount.
- 28:18I mentioned before how it's just incorrect to say one new food every three,
- 28:22four, five days, because that's assuming that something is going to happen.
- 28:25We can now offer, you can try a dozen new foods today if you want.
- 28:29Now, we all know as pediatricians that it can take time for these babies to
- 28:32really like the tastes and textures and learn how to like these foods,
- 28:35but there's no reason not to take that approach if you feel comfortable.
- 28:39Here are some things I recommend you don't say. Please don't advise people to
- 28:42drive to the ER parking lot before introducing a food that just is going to
- 28:45put their anxiety on level 12 out of a scale of one to 10.
- 28:48We don't want to recommend rubbing on their skin first.
- 28:50We don't want to send the message that reactions can occur basically at any
- 28:54point because then all they're hearing is that their child's a ticking time bomb.
- 28:57We don't want to tell them like keep them awake for a certain period of time
- 29:01after eating because that again sends a very fear-based message.
- 29:04We don't want to prescribe epinephrine auto-injectors prior to feeding because
- 29:07again that's a very fear-based message and it's extremely unlikely they're ever
- 29:10going to need to use that.
- 29:11And we also don't want to sort of chastise and say, if you don't get it in their
- 29:14diet by 11 months of age, then you missed the window. So we want to support
- 29:17them wherever they are in their journey and reassure as much as we possibly can.
- 29:22So what about reactions? Well, this is a question I'm sure all of you get and
- 29:26I get as well. They say, okay, what if I do this? What if they do react?
- 29:29Well, let's talk about this. We say the most common reactions will be some hives.
- 29:32If they do have some hives after that, if they're otherwise acting fine,
- 29:36those are going to self-resolve.
- 29:37If you want to treat it, we can use something like a second generation antihistamine.
- 29:41We do want to recommend not using things like diphenhydramine because it's very
- 29:45outdated. They make kids drowsy. They have tons of side effects.
- 29:48Second generation antihistamines such as statirazine, loradadine,
- 29:51they actually work faster than first-generation antihistamines.
- 29:54They last four times as long, and they don't have those terrible side effects.
- 29:58That's what we can counsel families to give in the right dose if they have hives or stuff like that.
- 30:02We can put it in context. So if they're going to have a reaction to what they're
- 30:06eating, it's going to happen within one to two hours of eating.
- 30:09So if they get a rash or they get fussy or they vomit 12 hours after eating
- 30:13something, that's not a food allergy reaction.
- 30:15All of the symptoms that can occur due to food allergy can occur for unrelated reasons.
- 30:19So we want to put that in the context of if they're going to react,
- 30:22it's going to happen pretty fast, typically while they're in their high chair at the table eating.
- 30:26We can review the common signs and symptoms. And then we can also anticipate,
- 30:30all right, as you expand your child's diet, here's a couple of things that are going to happen.
- 30:34One, their stooling is going to change. They're going to poop a lot more.
- 30:37It's going to be firmer. And that's a good thing. It may change colors, maybe foul smelling.
- 30:40That's all because they're expanding the diet, eating all these different things,
- 30:43more fiber, things like that.
- 30:44We can also anticipate just because of the developmentally, their sleep will
- 30:48probably change, hopefully for the better as well.
- 30:50These are not signs of an allergic reaction. And then we can write these things
- 30:53down, hand it to them, make ourselves available should they have concerns.
- 30:57So when should we provide this advice? This is really where all of you are.
- 31:01We need all of you to make this work because you have the point of contact with
- 31:04them at their well visits at two, four, six, and nine months or in between.
- 31:09So this is really where we want to have these conversations.
- 31:11Shared decision-making, and meet them at those points. I don't see them until
- 31:15after they've had a reaction.
- 31:16But if you can have this conversation with them early, the earlier the better,
- 31:20and then reinforce this every time.
- 31:21So even if they come in for other concerns, we can still reinforce this or have
- 31:25handouts available or put it as part of their after-visit summary or something like that.
- 31:30The other thing we have to always recognize would be the impact of disparities,
- 31:34especially on food allergies.
- 31:35And we know that those from lower socioeconomic backgrounds or in certain minority
- 31:39groups, they have a higher risk of having food allergies.
- 31:42So as I mentioned before, with the different risk factors, we want to help everybody,
- 31:46but these are the folks that really warrant our attention. So we want to help
- 31:49them as much as we can, especially the African-American population.
- 31:52And so if you have a African-American baby that has pretty persistent eczema,
- 31:56they're the ones really saying, hey, pay attention to me. I may go on to develop
- 32:00food allergies and have a very allergic life.
- 32:02So let's support these families and give them all that education and reassurance
- 32:06that we can and help them get these foods in their baby's diet and try to prevent food allergy.
- 32:10I encourage you to work with allergists in your area. I don't know if you're
- 32:13doing this now. I hope you are, but talk to them about what happens if I have these concerns.
- 32:18Can we set up a good referral pipeline where they can see you within a week
- 32:21or two and we don't have to wait six months for an evaluation because then it's too late?
- 32:25As I mentioned before, incorporate this in the well-child visits.
- 32:28If you want to come up with handouts.
- 32:29From the 2017 NIAID guidelines in the U.S., there was like a little infographic in how to give peanuts.
- 32:37So you can put it, you can mix it with water and thin out the peanut butter,
- 32:40peanut puffs. It tells you how much to give and things like that.
- 32:42But there's other resources available as well.
- 32:44And then think about just making
- 32:45this part of your EHR and put it in the after visit summary as well.
- 32:50In Australia, they have a public health approach. So if you want reassurance about how safe this is.
- 32:55For years, they've been recommending, they call it nip allergies in the bub.
- 32:59There's literally like, you know, billboards on the side of the highway and it's commercials.
- 33:02And this is just widely adopted of it's safe.
- 33:06We want to feed these babies, you know, peanut and allergenic foods.
- 33:09And they've been doing this for years and they've studied this and they have
- 33:11not seen an increase in anaphylaxis in infants.
- 33:16They have not seen an increase in food allergies.
- 33:18To date, they haven't seen a decrease in food allergy, but that's a different
- 33:21story for a different time, but it's working just on a public health level.
- 33:24So there's no reason why we can't adopt this approach here in the U.S.
- 33:28Or having these conversations during our healthcare visits and things like that.
- 33:32So what if we're wrong, right? We were wrong before. What if we're wrong now?
- 33:35So we are starting to see some interesting case reports of food protein-induced
- 33:39enterocolitis syndrome to causes that typically aren't known causes of FIs, like peanut.
- 33:44But it's not like it's rampant or anything like that. As I mentioned,
- 33:48we have good studies from Australia, especially that are leading the charge
- 33:51on this, that people are doing really well.
- 33:53So this is something that we want to try to promote.
- 33:56And even if we are wrong and some of these kids do develop allergy earlier,
- 34:01we have ways of treating that.
- 34:02So we're doing things like salvage oral immunotherapy.
- 34:05So if we have infants that do react to peanut and they develop a peanut allergy,
- 34:09a lot of them, if we put them on oral immunotherapy in the first couple of years
- 34:12of life, we can help them promote tolerance and maybe cure this.
- 34:15And so we have all these different approaches now that we didn't have just a few years ago.
- 34:20So the changing landscape. So, you know, sometimes you can have food allergy
- 34:24despite early introductions. So when that occurs, we really want to,
- 34:28you know, recommend get all the other foods in their diet and then we can address this.
- 34:32And as I mentioned, we have oral immunotherapy and now omelizumab is indicated
- 34:36for treating food allergies for anybody down to the age of one year of age.
- 34:40What omelizumab does is it's an anti-IgE monoclonal antibody.
- 34:43So it binds the IgE, doesn't care what you're allergic to.
- 34:46It's great for people with multiple food allergies and you'd have to eat a higher
- 34:49amount to trigger a reaction. So it increases your threshold and decreases the
- 34:54risk for reactions from accidental ingestion. So we have,
- 34:57rapidly evolving treatment options available, and it's going to change even a year from now as well.
- 35:03What about other prevention strategies? So when we look at maternal diet,
- 35:07it really doesn't impact the baby, whether it's during pregnancy or breastfeeding.
- 35:10And I think it goes back to what we talked about before, how just very little
- 35:13intact protein gets passed through either the uterus or breast milk.
- 35:17So we want to advise families, eat whatever you want.
- 35:20By the way, what's the number one food when I ask mothers after our conversation,
- 35:24what food do you miss the most.
- 35:25Number one on the list, cheese, by far. Number two, lattes.
- 35:29So we don't want to deprive these amazing mothers from their cheese or lattes
- 35:32by telling them to take milk out of their diet for when it's not necessary.
- 35:36What about maternal diet diversity when they're pregnant?
- 35:39It's weak signals, probably not, you know, it's hard to tell association data more than anything.
- 35:44Vitamin D is not moving the needle on this. We look at vitamin D for pretty
- 35:47much every chronic health condition.
- 35:48We can do a really good job of increasing vitamin D levels in the bloodstream
- 35:52by supplementing with it, but the downstream effects generally aren't there.
- 35:56Okay. What about cow's milk-based formula? So this goes with very early introduction.
- 36:00So those infants that do start on cow's milk formula have less cow's milk allergy
- 36:04just because they're exposed to it in early age and they have more tolerance.
- 36:07The microbiome, there's a very, there's a good signal there,
- 36:11but it's a little too early for us to recommend like stool analysis and specific
- 36:16interventions, but there's probably something there, you know,
- 36:19nothing that we can strongly recommend.
- 36:21And then, as I mentioned before with eczema, if we put emollients on the skin
- 36:25from day of life one, it may delay the onset of atopic dermatitis,
- 36:29but it's actually not preventing it and it's not preventing allergies from developing.
- 36:32So this is kind of where we are in the prevention landscape.
- 36:34So lots of exciting stuff that's being looked at.
- 36:37Nothing that has a really strong
- 36:38signal other than early introduction and ongoing inclusion of the diet.
- 36:43So we'll have some take-home talking points, and I'm more than happy to take any questions.
- 36:46So we want to recommend introducing allergenic foods around four to six months
- 36:49of age. That's very safe. It's our best path towards preventing allergy.
- 36:53And as I mentioned, even though the U.S. guidelines and the AAP hasn't changed
- 36:57their guidelines, and as a member of the executive committee for the section
- 37:00of allergy immunology, the AAP is not going to, because we already have other guidelines.
- 37:03We have the North American feeding guidelines and things like that.
- 37:05So if you're waiting to say, well, the AAP has to recommend this before I do
- 37:09it, it's not going to happen for various reasons.
- 37:12But we have good evidence. We have good approaches elsewhere.
- 37:15So this is what we want to recommend. And it's all about perspective.
- 37:19So nothing we do in medicine is 100% effective.
- 37:22Nothing we do in medicine is 100% effective. And if we look at this,
- 37:26more than 920,000 out of a million children will never develop a food allergy,
- 37:30regardless of when they eat it or what they eat.
- 37:32So I think that's important as well. So we want to recommend,
- 37:35let's get the food in the diet.
- 37:37Let's try to prevent this as much as we possibly can, but also just reassure
- 37:39people everything's going to be okay.
- 37:41So in conclusion, we know that infants with moderate to severe eczema are those
- 37:44at highest risk. That's the biggest risk factor.
- 37:47We want to address this with them and catch them as much as possible.
- 37:50We want to counsel families on early introduction, make a standard party of
- 37:54your visits, get your spiel going, have handouts available.
- 37:57And then, you know, with this new perspective and great accumulating evidence,
- 38:01this is a reassuring thing.
- 38:02This is a good thing that we can offer families. And I hope that I gave you
- 38:06some of that perspective today. And I will stop sharing my screen.
- 38:10I sincerely apologize for that terrible interruption. Technology,
- 38:14we're still trying to figure it out, right? But so thank you again.
- 38:18Dr. Sukas, that was wonderful. Thank you. Thank you very much for that fascinating
- 38:22presentation i already have questions i'm going to start from the bottom here in the chat box,
- 38:27breastfeeding and celiac disease one of my parent parent concern is vertical
- 38:32transmission any research on this topic,
- 38:36breastfeeding and celiac disease. Yeah, not that I'm aware of.
- 38:40No, I think, you know, celiac, it can run in families.
- 38:42It's an autoimmune condition, as you all know, but I'm not, yeah,
- 38:46I have not seen anything where gluten passes through the breast milk that can
- 38:49cause, you know, those symptoms.
- 38:50So that's obviously a very specific case and, you know, it involves shared decision-making.
- 38:57Is there any rationale to the packets or is there any rationale to the food
- 39:01industries label first food, second foods, et cetera.
- 39:06The first food, second foods is an irrational.
- 39:09Oh, I think, you know, it's just like most things we do in medicine,
- 39:14you kind of give a guidance, right?
- 39:17So when we think about the COVID pandemic, we said stand three feet apart.
- 39:21Was there something magical about three feet? No, but it makes sense,
- 39:24right? It's something we can all follow.
- 39:26So when you have these guidance of like first food, second foods,
- 39:28it's just giving families a blueprint.
- 39:30Does every baby need to follow that? Absolutely not. You all know this.
- 39:33Is it helpful for some families? Absolutely. So these are just guidance,
- 39:36and we can vary from that.
- 39:38Any thoughts on allergen packets, powders advertised for babies?
- 39:42Yeah, there's a couple thoughts on this, and I should probably start including
- 39:45this in the base of my talk.
- 39:47So there's multiple companies that have various products available,
- 39:51whether it's powders or cookies or crackers, where they put very small amounts
- 39:54of allergenic foods, combine them and say, this makes it a lot easier to introduce
- 39:59these allergenic foods into your baby's diet.
- 40:01So one, these are costly, so it can increase cost for families.
- 40:05Number two, the dose is involved in a lot of these. You haven't been studied
- 40:09as a way to actually prevent food allergies.
- 40:11So if there's microdosing, is that actually enough?
- 40:14Number three, some of these products that when they study them off the shelves,
- 40:18they don't actually contain what they say they contain.
- 40:19So I don't want to introduce conspiracy here, but it's like every other supplement
- 40:23out there. We don't quite know what's going on in there.
- 40:25And then lastly, we still don't want to get away from feeding babies.
- 40:30We want them to learn how to enjoy different tastes and textures and the nutrition
- 40:34that comes from that. So is it necessary? Absolutely not.
- 40:37Would some families like to do that as part of their early introduction plan,
- 40:40that's fine. But I can't recommend, you know, one specific one over another.
- 40:45There's a question about anaphylaxis. Do you consider generalized hives plus
- 40:49the GI symptoms such as vomiting, anaphylaxis?
- 40:52Yeah. So when we talk about anaphylaxis, it's more than one body system.
- 40:56So hives and vomiting, that's anaphylaxis.
- 40:58It's important to note that there's a range in severity. So a lot of people
- 41:02have very mild anaphylaxis, they break out in hives, they vomit once.
- 41:06That's anaphylaxis, but oftentimes it's actually self-resolved.
- 41:09So you can have more moderate and severe as well, but it's pretty unusual for
- 41:12infants especially to have true severe anaphylaxis, especially with respiratory involvement.
- 41:17When we think about respiratory involvement with anaphylaxis,
- 41:19it's almost always going to be those with underlying asthma,
- 41:23specifically poorly controlled asthma, and then they get the bronchoconstriction
- 41:27because they already have hyperreactive airways. So that's typically when we see it.
- 41:30The whole concept of like your throat swelling shut, it's such a rare phenomenon.
- 41:34So we want to reassure families with that as well.
- 41:37There's a comment by Dr. Weimer, but I think there's a question,
- 41:40how much allergies prevented by no food until six months?
- 41:44Many babies with cow's milk problem did well on goat's milk.
- 41:50Well, yeah. So it goes back to what's the diagnosis. So what's the reason for avoiding these things.
- 41:56So if you have a true, like an IgE-mediated milk allergy, you generally need
- 42:01to avoid all mammalian forms of milk because there's cross-reactivity with those.
- 42:05So a lot of this too can be tincture of time.
- 42:08So whatever's going on with these babies as they are developing,
- 42:12and it just naturally resolves no matter what you feed them.
- 42:14So I think this whole concept is just, we don't need to go their entire first
- 42:19year of life and avoiding it.
- 42:21If we truly feel that cow's milk is causing issues, all right,
- 42:23let's avoid it for two to four weeks and let's reassess and then think about
- 42:27putting it back in the diet if they're doing well.
- 42:29Please mention a little bit about, I think, food-induced enterocolitis,
- 42:33any approach other than avoidance of the food.
- 42:37Yeah, so FPI is food protein-induced enterocolitis syndrome.
- 42:41The most common presentation, it typically occurs in infants or young children.
- 42:45They eat something, they're completely fine. And then, you know,
- 42:48typically two to three hours later, they have profuse vomiting,
- 42:50sometimes followed by diarrhea.
- 42:52This is not IgE-mediated. There should not be hives associated with this.
- 42:55There's no diagnostic test for it, which is really hard.
- 42:58You almost always have to have two episodes or more to establish a diagnosis
- 43:02because there's a million reasons why babies can vomit.
- 43:05And these foods are very different from IgE food allergies.
- 43:08So now we're talking about cow's milk and soy are more common because it's formula-based,
- 43:12but now we're talking about rice and oats and vegetables and things like that.
- 43:16The good news is this is often self-resolved and it gets better as kids get older.
- 43:20It also doesn't cause anaphylaxis. We don't need to be prescribing EpiPens or things like that.
- 43:24And it's typically only one food. Rarely is it going to be three or more foods.
- 43:28So if you start thinking there's like six foods causing F-Pi's,
- 43:31we need to reconsider the diagnosis.
- 43:33And then as far as there's questions, we don't know.
- 43:36So like we know with milk and egg allergy in babies, 75% of them can tolerate
- 43:40it when you bake it in things because when you heat it in the oven extensively,
- 43:43it changes the protein structure and they can tolerate it.
- 43:46It's likely the case with F-Pi's. We just don't have good evidence for that.
- 43:49It's very unlikely that they're going to react to trace amounts across contact.
- 43:52And it's very, very unlikely that it's going to be transmitted through breast milk.
- 43:56Any other questions, comments for Dr. Stukas?
- 44:00You can ask him questions directly or put them in the chat box.
- 44:04So I know this topic tends to be not controversial, but it's very different
- 44:09from what many of us have taught and practiced.
- 44:11And I encourage you to read through the guidelines that I shared with you.
- 44:16Again, this isn't just my opinion here. I'm just merely relaying what the evidence shows.
- 44:21But yeah, it's interesting stuff, and it's relatively good for the most part.
- 44:26David, there's a question here. What about the premature, well-appearing baby with bloody stools?
- 44:32Yeah, it goes back to, I think we need to question, you know,
- 44:35why do we think they have that?
- 44:37What's going on? There's a differential diagnosis for all of these symptoms.
- 44:40If we do think it's cow's milk allergy, again, go through a trial elimination.
- 44:44When it comes to cow's milk-induced proctocolitis, we need to give it like a
- 44:48good three to four days to heal. So I think it would be harmful to tell parents.
- 44:52It should be cleared by the next diaper if you take milk out.
- 44:54We want to give it three or four days. It's a benign condition.
- 44:57It's often, you know, self-resolved even if you continue milk in the diet. So we want to reassure.
- 45:02It's very unsettling when a parent changes the diaper and they see that, right?
- 45:05But that's something where we
- 45:06can say, okay, if they're otherwise acting okay, let's give it some time.
- 45:09Let's see if we can make this resolved by changing from a cow's milk-based formula and go from there.
- 45:14Any other questions, comments?
- 45:17Dr. Weimer, go ahead and ask you a question, please. You're muted.
- 45:21We don't hear you. So you may have to unmute yourself.
- 45:25I'm not sure how to do that. Yeah, we can hear you now. Oh okay I just,
- 45:32I thought it'd be interesting for students to understand the history,
- 45:36the reflux boondoggled.
- 45:40And that started about the 80s when they did go or recommend no food until six months.
- 45:47Because the problem was until that, for probably a century, all babies started food at three months.
- 45:56So when they changed to no food till six months, the babies were flat hungry.
- 46:04And the reason they spit up is because they took too much milk.
- 46:09And they kept taking milk and taking milk. And finally, they spit up.
- 46:13Some of those babies did reflux.
- 46:15But the reflux, of course, diagnosis, and then they started the string test
- 46:22for stomach acid, if you remember.
- 46:26But that whole reflux boondoggle was due to going to food at six months.
- 46:35And of course, my question is statistically just how much allergy is prevented
- 46:41by not feeding until six months.
- 46:44Was that ever shown to be significant at all?
- 46:50That's a great question. I don't believe that that was looked at.
- 46:54We didn't really have good evidence on this until that LEAP trial showed in
- 46:58the prospective manner about how to prevent it.
- 47:01But I mean, you're right. So that's a good question. And I appreciate your perspective
- 47:06on, well, just infant feeding in general, right?
- 47:08There's an ebb and a flow to all of this of whatever is the pervasive trend
- 47:12in that particular time and then how that influences things.
- 47:15So I think the best comment I can provide is it's always healthy for all of
- 47:20us to look back at things and with a healthy dose of skepticism and say,
- 47:24what does the evidence actually show?
- 47:26And, you know, it's interesting how we got to this point. Where are we now?
- 47:29Do we need to change anything?
- 47:31We have a follow-up question on premature will-apparing baby with bloody stools.
- 47:36How long would you keep them on non-cow's milk formula and would you use soy formula?
- 47:42Yeah, I think you can go to soy. We were all taught there's a ton of cross-reactivity
- 47:48between them, but they're different. Soy is a plant-based protein.
- 47:50It's very different than the mammalian protein. So you can go to soy first.
- 47:53And then the recommendations now are, let's go for a two to four-week elimination and then reassess.
- 47:59If symptoms are completely resolved, you can put it back in the diet and see if they come back again.
- 48:03If symptoms aren't resolved, you can consider putting it back in the diet because
- 48:06that probably wasn't the cause anyways.
- 48:08And then one more question. Should patients with peanut allergy avoid foods
- 48:12that are prepared in the place where they have peanuts, but the food does not have peanut?
- 48:17I think it depends on how well the manufacturer avoids cross-contamination.
- 48:21Some patients avoid it and others don't and are fine.
- 48:26Well, very quickly, in the United States, if a food contains one of the top
- 48:30nine food allergens, milk, egg, wheat, soy, peanut, tree, nut,
- 48:33fish, shellfish, or sesame, it must state contains.
- 48:36All of the other wording may contain processed and facility shared equipment
- 48:40is not regulated and is not meaningful.
- 48:43Very few of those products contain any allergen, let alone enough allergen to
- 48:48trigger an allergic reaction in an individual.
- 48:50So the vast majority of these are safe. we
- 48:54have also understood a lot more about individual thresholds most
- 48:58people with peanut allergy need to eat a whole
- 49:01peanut before they have any reaction at all so there's a lot that goes into
- 49:04this but for those precautionary labels those are generally very safe now some
- 49:08people choose to avoid them just to eliminate all risk and that's fine but that's
- 49:11a conversation we have with folks and they can make up don't forget to click
- 49:17on the link in this podcast for free credit that may include CME,
- 49:20MOC, or ethics credit, depending on a topic or podcast.
- 49:25Coming up next week, what's new in pediatric plastic surgery?
- 49:31He just moved here from England, and he's heading up our new pediatric plastic surgery program.
- 49:38It's an interview you won't want to miss. I'm Holly Wayment,
- 49:43and this is Pediatrics Now.
- 49:45Thank you so much for listening. I'll see you next week.
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