Latest / Style Points / Sick Hearts, Simple Surgeries with Cory France
Transcript
- 0:00Hello anesthesia enthusiasts and welcome to this month's episode of Style Points.
- 0:15If you work in a NOAR, try to remember the last time you were in a crisis scenario.
- 0:20Who would you want there with you?
- 0:22For a lot of us here at the University of Cincinnati, it's Dr. Corey France who's
- 0:26joining us to talk about patients with sick hearts who are having non-cardiac surgery.
- 0:31Before that, I'll turn it over to Nate Moore who will introduce this month's RSI.
- 0:37Thanks John.
- 0:38I'm excited to introduce Dr. Krista Selinger, the star of our RSI today.
- 0:41She is taking a quick break from her perioperative care rotation to teach us about IV anesthetics.
- 0:46Let's hear it from Krista.
- 0:48Now I know you're all busy juggling OR schedules, pre-op assessments, and the occasional 2 a.m.
- 0:54a case, but for the next 5 minutes we are going to break down IV anesthetics in a way
- 0:58that's quick, digestible, and useful for your everyday practice.
- 1:02So let's get started.
- 1:03What are we really talking about when we say IV anesthetics?
- 1:08These are medications delivered intravenously that induce or maintain anesthesia.
- 1:13They work by depressing the central nervous system and we use them for everything from
- 1:17induction of general anesthesia to sedation in the ICU.
- 1:21Let's focus on the big 4 IV anesthetics you'll see in the OR.
- 1:25Propofol, ketamine, atomidate, and benzodiazepines.
- 1:30We'll also briefly touch on opioids and dexmedetomidine.
- 1:34First up, propofol.
- 1:36This one's the workhorse of induction agents.
- 1:39Quick onset, short duration, and most patients wake up pretty smoothly afterward.
- 1:43Mechanism, it enhances GABA activity leading to CNS depression.
- 1:48Clinically, you'll notice it drops blood pressure.
- 1:52This is due to vasodilation and a bit of myocardial depression.
- 1:56So if you've got a hemodynamically fragile patient, maybe a septic ICU transfer for example,
- 2:01think twice before pushing a big bolus of propofol.
- 2:06Dosing is typically 1 to 2 milligrams per kilogram for induction in adults, but you'll
- 2:10tweak it based on patient factors.
- 2:12And remember, propofol burns on injection.
- 2:15A little lidocaine or using a larger vein can help with that.
- 2:20Next up, ketamine.
- 2:22This drug is like the Swiss army knife of anesthetics.
- 2:25It works as an NMDA receptor antagonist and has some unique properties.
- 2:29It's both an anesthetic and an analgesic.
- 2:32It also maintains a patient's spontaneous ventilation while most other induction agents
- 2:37cause apnea, making it a great option in situations such as patients with cardiac tamponade or
- 2:42those predicted to be difficult to intubate and ventilate.
- 2:46Here's the kicker.
- 2:47Ketamine increases sympathetic tone by causing a systemic release of catecholamines.
- 2:52So while most anesthetics drop blood pressure, ketamine can actually support it.
- 2:56This makes it a great choice for trauma patients or anyone who is hypovolemic.
- 3:00However, ketamine also has direct negative inotropic effects on the heart.
- 3:05Normally, the indirect catecholamine release overpowers this, but the negative inotropic
- 3:10effect can be unmasked in a catecholamine-deplete patient.
- 3:14So ketamine may not be the best option in patients with decompensated heart failure
- 3:18or sepsis.
- 3:20Don't forget that ketamine is hallucinogenic at the right dose.
- 3:23Watch for emergent delirium, that funky dissociative state where patients may hallucinate or get
- 3:28agitated.
- 3:30To mitigate this, consider co-administering a benzodiazepine like menazolam.
- 3:36Administering for ketamine is typically 1 to 2 milligrams per kilogram for induction.
- 3:40Bonus use for ketamine.
- 3:41It can be safely given intramuscularly, which makes it a great option for patients who won't
- 3:45tolerate an IV placement.
- 3:47IM induction dose is 4 to 5 milligrams per kilogram, which is a pretty whopping dose
- 3:52that can take a long time to recover from.
- 3:55So it may be wiser to give a small enough dose so that your patient will tolerate an
- 3:58IV and then complete induction with a different agent.
- 4:02Now let's talk automidate.
- 4:04This is your go-to for induction in the patient with a weak heart or hemodynamic instability.
- 4:10It's also a GABA agonist, but with minimal cardiovascular effects.
- 4:14Sounds perfect, right?
- 4:16Well, not quite.
- 4:18Automidate has two main drawbacks.
- 4:20First, it suppresses adrenal function by inhibiting 11 beta hydroxylase.
- 4:25After a single dose, this isn't necessarily a huge deal, but prolonged infusions can lead
- 4:29to adrenal insufficiency.
- 4:31Second, myoclonus is pretty common, those little jerky movements during induction.
- 4:37Don't worry, it's not a seizure, but it can be a nerving if you're not expecting it.
- 4:42The typical dosing is around 0.2 to 0.3 milligrams per kilogram for induction.
- 4:48And finally, midazolam.
- 4:50It's a benzodiazepine and its primary role is sedation and anxiolysis.
- 4:54Mechanism?
- 4:56Once again, it's all about GABA enhancement.
- 4:59Benzodiazepine has a slower onset than propofol or automidate, so you don't use it much on
- 5:03its own for induction in adults, but it's a great premedication or light sedation drug.
- 5:09Be cautious with elderly patients or those with respiratory issues.
- 5:13Benzos can cause significant respiratory depression, especially when combined with opioids.
- 5:17However, midazolam generally does maintain hemodynamic stability.
- 5:22Quick shout out to dexmedetomidine, which is an alpha-2 agonist.
- 5:26It's an awesome sedative, particularly in the ICU, as it doesn't cause significant respiratory
- 5:31depression.
- 5:32And there's EEG evidence that its effects mimic natural sleep patterns.
- 5:36However, you'll see bradycardia and hypotension pretty frequently with dexmedetomidine.
- 5:41These side effects limit its use as an induction agent, since a bolus dose of dexmedetomidine
- 5:46would cause significant hemodynamic changes.
- 5:49And then there are opioids, fentanyl, sufentanil, and remifentanil.
- 5:54They're crucial adjuncts for pain control, but aren't traditionally used as a sole agent
- 5:58for induction outside of the classical cardiac induction, in which high doses of opioids
- 6:04are slowly titrated to effect.
- 6:06But we'll save those for another episode.
- 6:08All right, let's summarize.
- 6:11First up, propofol.
- 6:13It's fast, reliable, but watch out for hypotension.
- 6:16Ketamine, hemodynamic stability plus analgesia.
- 6:21Just keep emergence in mind.
- 6:23Atomidate, perfect for fragile hearts, but beware of adrenal suppression and myoclonus.
- 6:29Medazolam, great for sedation, less so for induction in most cases.
- 6:34Remember, every drug has its pros and cons, so it's all about picking the right tool
- 6:39for the right patient.
- 6:49Corey France is an assistant professor of anesthesiology at the University of Cincinnati,
- 6:53who did a fellowship in cardiac anesthesiology.
- 6:56Whenever a case is particularly complicated or when disaster strikes, most of the people
- 7:00that I know would pick Corey to be there.
- 7:03He brings a calm demeanor and significant expertise to almost any situation he's involved
- 7:07with.
- 7:08Corey, thanks for joining us.
- 7:10John, thanks for having me.
- 7:11I appreciate it.
- 7:12Absolutely.
- 7:13So first off, why do you think people see you this way?
- 7:17How have you developed this reputation in the time that you've been here to where everybody
- 7:21seems to want you there when bad things are happening?
- 7:25I think part of it is I'm a giant black cloud.
- 7:28I'm turning gray, but I was and have been for a long time a black cloud.
- 7:32And so just having these terrible experiences, I wouldn't say terrible, but difficult experiences
- 7:37early on in my training, every time I'm on call, seeing it over and over, kind of get
- 7:42used to it to some degree.
- 7:45And then I also am my pathologies fit well within our specialty.
- 7:50So me being a paranoid, pessimistic person, I'm always thinking, what's the worst thing
- 7:55that can happen?
- 7:56What am I going to do if that thing happens?
- 7:58So you combine that with the fact that I always just seem to turn the corner right when something's
- 8:03happening.
- 8:04And I think that would probably be why.
- 8:05Do you think that you're more of a black cloud?
- 8:08Or are you more of a storm chaser?
- 8:10Because it seems like you you find yourself in those situations more often than a lot
- 8:14of people.
- 8:15I mean, early on, I was definitely a storm chaser, especially end of residency, early
- 8:20fellowship.
- 8:21I definitely don't seek these things out anymore.
- 8:23I'm not going looking for them.
- 8:24I do not wander the halls just waiting for stuff to happen.
- 8:29Fair enough.
- 8:30That was me probably five, six years ago, though, for sure.
- 8:32I remember when you started, my first year as an attending was your first year as a fellow.
- 8:38I think we graduated at the same time.
- 8:40And I remember we were always in different cases because you were doing all the cardiac
- 8:44analysis, but people always spoke very highly of you, even though I never really got to
- 8:49work with you.
- 8:50Yeah, I appreciate you saying that.
- 8:53Yeah, glad I could be seen that way.
- 8:56So when we were discussing topics for this podcast, I asked you if there was anything
- 9:01that you were particularly interested or passionate about.
- 9:04You're known as the cardiac guy that everybody comes to.
- 9:07But I wanted to know if you had any particular subsets of cardiac anesthesia that you wanted
- 9:12to talk about on the podcast.
- 9:14But you answered very quickly.
- 9:16You said you wanted to talk about non-cardiac surgery on cardiac patients.
- 9:21Yes.
- 9:22Why?
- 9:23Part of it is a frustration on my end because I see people, we have a lot of residents who
- 9:29graduate and stay on as faculty here.
- 9:32So I see these residents, I watch them grow throughout their years here during training.
- 9:38They get through residency, they're very good at what they do.
- 9:41And they start as an attending and they're willing to take on these difficult cases,
- 9:45challenging patients.
- 9:46And then slowly a year or two in, they're kind of shying away from them.
- 9:50And it's not because they've lost their skill set.
- 9:53I don't really know why they do it.
- 9:54But I think when you finish training, you are prepared to take care of the sickest patients.
- 10:01You know, especially if you finish residency here, our residents are ready to take care
- 10:05of almost anyone that's going to come through the door.
- 10:08So you need to foster that and continue that, not shy away from it as you kind of go on.
- 10:12You might not be doing the cardiac cases, the valves, the cabbages, that kind of stuff.
- 10:16But you know how to take care of these sick cardiac patients.
- 10:19Don't shy away from it.
- 10:21Use the skill set that you've trained yourself to have and gained from your residency program
- 10:25and continue to care for these sick patients.
- 10:28And also it's not going to go away.
- 10:30I mean, if you look at our population, our surgeons are no longer declining someone just
- 10:33because of their age or their frailty or their baseline mental status, dementia status.
- 10:39So you're going to have to take care of these patients, whether you're working in a surgery
- 10:42center somewhere sometimes, at an academic center, at a private practice group in the
- 10:46suburbs, they're going to come your way.
- 10:49And so just I would love if people continue to stay comfortable caring for some of these
- 10:54people, because you can't have cardiac anesthesia care for every person that has a bad heart.
- 10:58It's just not feasibly possible.
- 11:00Yeah, that makes a lot of sense.
- 11:03I've handled plenty of those scary cardiac patients myself over time, and I do my best
- 11:08not to shy away from them.
- 11:10I would be lying though, if I said that I asked for patients like that.
- 11:15Yeah, there's still going to be wrong there days where I would love to not interact with
- 11:19any of those patients.
- 11:20But like I said, you're just not going to be able to hide from that, I don't think,
- 11:24especially as our field goes into the future.
- 11:27As these people continue to want a palliative hip replacement, right when they're in hospice,
- 11:32that kind of thing.
- 11:33It's just something we're going to have to do in our field.
- 11:36I definitely think it's good to have some of these sick patients.
- 11:40I'm sure I have several every week where they have decreased EF or a valve that's bad, or
- 11:46there's some terrible vascular path, something like that.
- 11:50It's definitely good to be in an academic center where I can keep up my skill set despite
- 11:54not having done a cardiac fellowship.
- 11:57So let's back up for a second and ask one of my favorite get to know you questions,
- 12:02of course, the who has you asked a dinner question.
- 12:04So you can invite anyone in the world over to dinner.
- 12:08I've had a lot of really interesting responses to this so far.
- 12:12You could invite somebody from the past from fiction, who are you going to have over and
- 12:15why?
- 12:16Yeah, you gave me a heads up about this question.
- 12:19And I thought I would struggle with it.
- 12:20And I sat down to think about it.
- 12:22I was actually thinking about it.
- 12:23I live, if you know the traffic situation in Cincinnati right now, we're a little off topic
- 12:26for a sec.
- 12:27I live in rural Kentucky and my bridge is broke.
- 12:29So I have a long time to think on car rides home.
- 12:33And when I get stuck in bumper to bumper traffic, I don't want music on.
- 12:36I don't want to listen to NPR.
- 12:37I just turn everything off.
- 12:39And I zone out and I just fall the car in front of me.
- 12:41And so I had time to think about this.
- 12:43It took me all about 10 seconds.
- 12:44I would be my paternal grandmother Joan.
- 12:47She's no longer here.
- 12:49And I thought I would really struggle to find someone of historical interest or something
- 12:53that fit with some of my passions outside of medicine.
- 12:56But no, it would be her.
- 12:57It would be her for sure.
- 12:58What would you talk to her about?
- 13:01Just life.
- 13:02She was someone who helped raise me growing up and she is probably the most incredible
- 13:08woman I've ever met.
- 13:09And so just getting to talk to her, just interact with her, hear her, some of her anecdotes,
- 13:15some of her advice for stuff I'm dealing with.
- 13:18Now in the last few years, having her interact and know that I have a kid now.
- 13:23So another great grandchild, she had a few before she passed, but just spending more
- 13:28time with her.
- 13:30I think that's great.
- 13:31And I've asked this question to many people.
- 13:33I ask it on the interview trail.
- 13:35And I get a mixture where a lot of people will talk about historical figures or somebody
- 13:40like that.
- 13:41But there are a lot of people who really wish that they had more time with somebody that
- 13:45they love.
- 13:46And I think that that's a good way to tell what people are thinking and where their values
- 13:52are.
- 13:53I appreciate you sharing that.
- 13:57What we're here to talk about.
- 13:58Yes.
- 13:59Cardiac anesthesia.
- 14:00Can you tell me a little bit about your background in cardiac anesthesia and what sort of made
- 14:04you decide to do the fellowship?
- 14:06Yeah.
- 14:07I tell our trainees this all the time.
- 14:09There's only a few reasons to do a fellowship in anesthesia.
- 14:12And for me, the biggest reason to do a fellowship is if at the end of the day, you cannot imagine
- 14:17practicing anesthesia without that specific type of anesthesia for the rest of your career,
- 14:22whether that's a 15, 20, 30 year career, then you should do that fellowship.
- 14:28And so there are a lot of things I liked about anesthesia.
- 14:31A lot of some of the subspecialties I did enjoy my time on.
- 14:34But the only time I found myself sitting at home going, man, I really hope I'm doing X
- 14:39tomorrow or Y tomorrow was I really hope I get put in a cardiac case.
- 14:44And then when I wasn't doing it, I wanted to do it.
- 14:47When I didn't get to do it, I got upset.
- 14:49Like, why didn't they pick me to do that case instead of someone else?
- 14:53And that was the reason I did the fellowship.
- 14:54That's what drew me to it.
- 14:56Well, that definitely makes sense.
- 14:59That's not how I felt about cardiac.
- 15:02And there's like specific things about it for sure.
- 15:05The fact that it is a very, there are very specific steps to the dance in that operating
- 15:09room.
- 15:10Right.
- 15:11The communication is very open, it's very fluid, and everyone is part of that team.
- 15:16That's not a I'm doing my thing on my side of the drapes, ignoring what you're doing.
- 15:21You know, everyone that's in that room knows what the surgeon is doing at that time, what
- 15:24I'm doing at that time.
- 15:26And just some of the challenge and again, my pathologies kind of drove me there too.
- 15:30So I don't have to sit there and just do nothing for an hour and a half while someone's dissecting
- 15:36down to a nerve or something.
- 15:38I am always doing something.
- 15:39So I'm always busy using my hands, using my brain, working through something because I
- 15:44don't do well with boredom.
- 15:45I can't focus and just sit there and watch a monitor for an hour and a half.
- 15:49So that room is a good place for me to be.
- 15:52Yeah, I think that's fair.
- 15:54There's definitely a lot to be said for the team dynamic and the relationship that you
- 16:00build up with the surgeons over time.
- 16:01That's something that I enjoy with some of the cases that I do, whether it's doing an
- 16:05awake cranny with neurosurgery or OB or doing something with interventional pulmonology
- 16:12with Rachenko or somebody like that.
- 16:15It's really nice when you feel like you're in the flow and working on the same team as
- 16:19the surgeon.
- 16:20So that makes a lot of sense.
- 16:22So we're here to talk about patients with cardiac conditions who are not having cardiac
- 16:29surgery.
- 16:30Can you give me an example of a patient archetype that you are wanting to talk about?
- 16:34Yeah, I mean, we're a trauma center.
- 16:36We get a lot of ortho trauma.
- 16:38So I'll deal with what I know.
- 16:40You get someone who comes in, falls on the ice from the snowstorm, recently broke their
- 16:44hip.
- 16:45They're 80 years old.
- 16:46They know that they needed some kind of intervention on their heart, whether it's their aortic valve
- 16:50replaced, or they needed a bypass surgery, but they didn't really want to do it because
- 16:55they don't really do much.
- 16:56They're not active, so they don't really get chest pain that often.
- 16:59Or they know they've needed an ICD because their EF is 25%, never recovered after they
- 17:04got their cabbage five, six years ago.
- 17:07But now they're here, no fault of their own, and they need a procedure done and they want
- 17:10it done and the surgeon wants to do it.
- 17:13So let's say that a patient like this who has fallen and broken a bone is coming to
- 17:20the pre-op clinic.
- 17:21Let's say we have the luxury of they're not inpatient yet, and we're able to see them
- 17:25in pre-op clinic.
- 17:27Given time for optimization, what kinds of things are we doing in a pre-op clinic?
- 17:34What would you be interested in knowing?
- 17:36What would you be interested in ordering?
- 17:38What would be your process there?
- 17:39I kind of go back to electronic health records, a lot of these people are not new to us.
- 17:46So even though we're seeing them maybe for the first time in our department, they are
- 17:50well known to a health care system somewhere.
- 17:53So I always start with, was this person ever in the hospital and sent home when they were
- 17:59at their best state, their best self?
- 18:02So if I can go back and say, okay, they were admitted for heart failure, exacerbation,
- 18:06they got diareased, they got put on goal-directed medical therapy.
- 18:11What did they look like when they left the hospital when those teams felt like they were
- 18:14at their best self?
- 18:15What was their dry weight?
- 18:17What was their functional status?
- 18:19Did they have orthopnea?
- 18:20What symptoms did they have?
- 18:21And then I compare, if I can find that, I compare their best self to how they're presenting
- 18:25today.
- 18:26And then I see, is there any major discrepancy between those two?
- 18:30And that's where I start.
- 18:31That gives me a picture, is this person where they should be better than where they were
- 18:35before maybe?
- 18:36Maybe they've even recovered some more with the medical therapy.
- 18:38Or are they worse than when they were, quote, at their best?
- 18:43And then after that, I start with functional status and symptoms.
- 18:48One thing I've put more and more stock in is I've seen more patients go through health
- 18:52care systems is their functional status.
- 18:54I've seen people with very scary conditions, very severe valvulopathies, really depressed
- 19:00LVRB functions, and the ones that are functional and can do things.
- 19:07And if you read data, it's going to be four METs is right around your cutoff.
- 19:10But if they can do a lot of their ADLs, their grocery shopping, they're caring for themselves,
- 19:15they can walk, do an exercise bike maybe for short periods of time.
- 19:18That puts my mind at ease compared to someone who has absolutely no functional status.
- 19:23For some of our listeners who might not know about METs, can you tell me a little bit about
- 19:27that?
- 19:28Metabolic equivalence.
- 19:29I'm from Kentucky, I like to keep things simple.
- 19:32So if you look at the and I brought them with me today, we're not going to look through
- 19:35them at all.
- 19:36But I have them here just so I could remember all the societies that are in on them.
- 19:39But the core has a stack of papers here that is that an inch high.
- 19:46The 2024 AHA, ACC, ACS, many, many more guidelines on perioperative cardiovascular testing and
- 19:54management for non cardiac surgery.
- 19:56Put out again, 2024 just recently.
- 19:59But if you look at that, they break it down into metabolic equivalence.
- 20:02And these are all based on historical studies done, you know, right around the time of my
- 20:07birth really.
- 20:09But four metabolic equivalence of activity, and I liken that to one simple thing, two
- 20:15flights of stairs without stopping, three to four blocks on flat level ground.
- 20:20And that is a that'll get you to a metabolic equivalent that is enough activity that should
- 20:24be raising your heart rate, requiring you to augment your cardiac output and index to
- 20:28keep up with the metabolic demand of your body and your muscles doing that amount of
- 20:31work.
- 20:32It doesn't seem like a lot.
- 20:35But that has good data behind it that if you can achieve that amount of metabolic activity
- 20:40without symptoms, that's important thing.
- 20:42Like if you go up two flights of stairs and you get chest pain, crushing chest pain at
- 20:45the top, that's not good.
- 20:46But if you can do those things without symptoms, that your risk in the perioperative period
- 20:51is lower.
- 20:52So four meds, two flights of stairs.
- 20:55That's kind of where I start when I'm talking about functional status and activity.
- 20:58I'd be remiss if I didn't mention my favorite unit when I'm talking about metabolic equivalence,
- 21:03which is the lap around Walmart.
- 21:05Yes, I usually am asking all of my patients, can you walk a couple of laps around Walmart
- 21:10without getting chest pain or short breath?
- 21:11What if you were pushing a cart?
- 21:13Could you do it?
- 21:14Right.
- 21:15So that's a good point, because you have to you have to liken it to things that they might
- 21:17do every day.
- 21:18Right.
- 21:19And a lot of people have no stairs at their houses, right?
- 21:22Or they live on the sixth floor of an apartment building and they take the elevator because
- 21:26they're definitely not going to walk up six flights of stairs four times a day, you know.
- 21:30Another one of mine is like our parking garage is downhill from our hospital.
- 21:35So when patients come into our hospital, even if they're taking elevators in the parking
- 21:39garage to get into the hospital, they have to walk up what is basically over a ramped
- 21:44period, it's not in a vertical stairs, but over a flight of stairs.
- 21:49So that's another one I'll use as kind of a surrogate.
- 21:51Hey, did you walk in today?
- 21:53Right.
- 21:54And if you're like, I tried, but I had to stop halfway off that ramp to get a wheelchair.
- 21:56All right.
- 21:57I know where I'm at right away.
- 21:58Right.
- 21:59I guess if you made it to preop clinic, you're cleared for surgery.
- 22:01No, that's all joke, right?
- 22:02If you put the preop clinic on the third floor and have no elevator, if they make it there,
- 22:06they're good.
- 22:07OK, so we have seen them.
- 22:09So we know a little bit about them.
- 22:12We know what their metabolic equivalents are.
- 22:14What are some things that we can do preoperatively to optimize these patients?
- 22:18I mean, we know what their valve looks like.
- 22:20We know what their dry weight is.
- 22:22What can we do?
- 22:24I think a lot of it, unfortunately, there aren't a lot of medical therapies or interventions
- 22:29for sure that you can do, especially with valves.
- 22:33Obviously, the first thing to ask yourself in this situation is do I have time to do
- 22:36anything?
- 22:37Sure.
- 22:38Right.
- 22:39Our preop clinic here, it's gotten better, but you still might be seeing someone who's
- 22:4148, 72 hours out from their procedure that is time sensitive.
- 22:46We're not even talking about the logistics of this surgeon is going on vacation in a
- 22:49week, doesn't have any block time, you know, any time else.
- 22:52But do I have time to do anything?
- 22:54Right.
- 22:55And if the answer is yes, you have time.
- 22:56OK, in my system, how long does it take me to get this patient in to see a cardiologist
- 23:02who can start them on goal directed medical therapy, get them on a beta blocker in a mineralococorticoid
- 23:08receptor antagonist, an Acer and R, can get them on an SGLT2 inhibitor, all those things,
- 23:13because we don't usually prescribe them to start a therapy that's going to continue in
- 23:17the preop clinic ourselves.
- 23:18Right.
- 23:19Our nurse practitioners and us will do some drugs, but that's not our role per se.
- 23:24And if I have time to do that, then it is that referral and it is let's get you on the
- 23:28right medicines.
- 23:29Maybe your heart's going to recover some.
- 23:31Do we have time to start them assess for tolerability, side effects?
- 23:36But then you're talking months, right?
- 23:37This isn't something that's going to take a day or two.
- 23:39So that's in an ideal situation.
- 23:41We don't often have that amount of time.
- 23:44So some of these patients, like you said, really can't wait, but some of them are really
- 23:49sick too.
- 23:50So philosophically, what does that look like for you?
- 23:55What sorts of things are you considering when you're deciding whether the surgery is urgent
- 24:00and needs to go forward despite the risk or maybe we need a couple of weeks?
- 24:05What's that decision process like for you?
- 24:08If I think they are near their baseline optimized state, then it's a question of making sure
- 24:14the patient and the surgeon truly understand their risk and making sure there isn't an
- 24:18alternative therapy or intervention that might be less invasive or risky for the patient
- 24:23to treat that same condition.
- 24:26So that leads us to kind of the risk calculators that you see.
- 24:30And that's kind of where I'll start.
- 24:31And I present that data to the patient and a lot of them I'll do with them in the room
- 24:35on the computer.
- 24:36I've done the computer a lot in the clinic, but that's where I'll pull it up, do their
- 24:39risk calculation using an RCRI or the GUPTA or the ACS when they're both based on the
- 24:45NISQIP data.
- 24:47And when patients see that and they get to see that percentage chance of stroke, heart
- 24:51attack, major adverse cardiac event, then suddenly they're kind of realizing how serious
- 24:56this is.
- 24:57We're not just talking about, yeah, yeah, this might happen and kind of brushing it
- 25:00aside.
- 25:02And so making sure they understand that and then just having a discussion with the surgeon.
- 25:06Look, this is what their risk is if you look at how they fit into these risk calculators.
- 25:12And then it's a question of is everyone willing to assume that risk?
- 25:18And if everyone is, then it's a question of is there anything that I can do short term
- 25:21to mitigate that risk?
- 25:23And we talk about short term, it's morning of throughout the procedure immediately post
- 25:28up at this point, right?
- 25:29Because we've already decided they might not have time to go see a cardiologist and get
- 25:32started on therapy and wait three months for recovery, that kind of thing.
- 25:36So there are lots of different types of anesthesia that you can do more than one way to skin
- 25:41a cat.
- 25:43What kind of anesthesia techniques are you looking at when you're dealing with patients
- 25:49who are maybe exquisitely high risk?
- 25:52What do you sort of think about?
- 25:54What do you jump to?
- 25:56Yeah.
- 25:57I like to put this one in a situation for a patient.
- 26:03So say we have a patient with severe aortic stenosis, LVEF is 30-35% with that RV functions
- 26:09mild to moderately reduced and they need a knee replacement.
- 26:16So we have options there in terms of our anesthetic technique.
- 26:19This goes back to me being paranoid and pessimistic.
- 26:22I'm always thinking, okay, this patient, what is going to, if they're going to die on the
- 26:26day of surgery, hear me out on this, no one should die.
- 26:29I don't want anyone to die.
- 26:30But if they're going to die, again, me being paranoid and pessimistic, what is going to
- 26:34be the etiology of their demise?
- 26:38In this patient, I'm thinking, okay, it's going to be their aortic stenosis that's going
- 26:43to cause them to have a backup of blood and pressure in their LV because they can't get
- 26:46it across that valve that's going to dilate the heart even farther and then their LV is
- 26:50going to not be able to actually generate enough pressure.
- 26:53So that downward spiral of aortic stenosis that you see, because you're already part
- 26:57of the way on it with that reduced EFN function.
- 27:00And it's how do I prevent that from happening?
- 27:02So how do I prevent that downward spiral that starts with building up blood and pressure
- 27:07in the LV because they can't get it across that valve?
- 27:10And is there an anesthetic technique that I could do that could minimize that?
- 27:14And to apply it more broadly to any patient I see, it's how can I minimize the amount
- 27:20of drugs and impact I have on my patient?
- 27:22Is there a way that we could do this procedure without me involved?
- 27:26Could the surgeon use just local?
- 27:28Is there a way that we could do it with a nerve block instead of a neuraxial or a neuraxial
- 27:33instead of general?
- 27:35That's my personal philosophy on seeing it.
- 27:37I like to minimize my involvement in a patient if at all possible.
- 27:43The data doesn't support that, to be honest.
- 27:45If you look at a lot of the studies on anesthetic choice and outcomes after surgery and even
- 27:50in the guidelines, this giant stack of paper I have over here on my right, they even say
- 27:54there is no real evidence to suggest you do one type of anesthesia, whether that's volatile
- 27:59or TIVA or regional over another for these patients who have cardiac disease or non-cardiac
- 28:05surgery.
- 28:07But to me, keeping it simple, minimizing my impact on them on the day of, that's where
- 28:12I start.
- 28:13So knee replacement.
- 28:15Can I do this under regional?
- 28:18Spinal alone, probably not.
- 28:21Could I do it under a neuraxial?
- 28:24Yes.
- 28:25Could I do that neuraxial as a single shot spinal or a CSE or a spinal catheter or just
- 28:30an epidural?
- 28:31You could do it under any of those, but then you start to worry about if I do a single
- 28:35shot spinal, what level do I need to get up to?
- 28:38Do I trust me doing that spinal and managing the spread of the drug to not knock out their
- 28:44cardiac accelerator fibers, to not get them so vasodilated that we suddenly drop their
- 28:48preload, they can't fill that LV, they can't get blood across that aortic valve?
- 28:53And I just think through it like that.
- 28:55If I do this type of anesthesia, will it keep the patient safe and comfortable?
- 28:58Will it allow the surgeon to do what they need to do?
- 29:01And how will it impact that patient's pathology?
- 29:03But at the end of the day, again, I do believe that the type of anesthesia you do does not
- 29:08matter as much as you meeting your hemodynamic endpoints and parameters and goals for that
- 29:13patient.
- 29:16The paranoid and pessimistic traits that you referred to, this is something that I actually
- 29:21talked a little bit about to Jesse in the last podcast.
- 29:26We were talking about it in terms of being husbands, fathers, that sort of thing.
- 29:32How do you approach having those traits in your real life?
- 29:37How do you make sure that that isn't too dramatically affecting your life at home?
- 29:43It's stopping you from going anywhere and doing anything.
- 29:45I like to think that it doesn't to some degree that I'm one of the few people that in this
- 29:50part of the reason why I'm in anesthesia, I'm at work, I'm at work, I'm not at work,
- 29:54I'm not at work.
- 29:55I don't want to take my patients home with me.
- 29:56I don't want to have to worry about long term follow up.
- 29:59That's one of the reasons I went into this field.
- 30:01And I do have that ability to kind of switch between me at work and me at home to some
- 30:06degree.
- 30:07I know my wife will disagree.
- 30:08And if she ever listens to this, she's going to remind me of our trip that we did with
- 30:11her nephew and our little kid this summer to Europe.
- 30:13Oh, I want to hear about this.
- 30:14Right.
- 30:15I'm always thinking, okay, we're gonna lose our passports.
- 30:17Where's everyone's passport?
- 30:18We're gonna forget to catch this train because we got to do we got to go from this platform
- 30:22to that platform and downtown Berlin at this time.
- 30:25So we got to make sure that we're hustling from here to here and that kind of thing.
- 30:29And so I do carry some of that with me.
- 30:30And it does impact it.
- 30:32And I'd like to say that we didn't miss any of our transport.
- 30:36No one ever got lost.
- 30:37We didn't lose any major documents.
- 30:39Nothing bad happened.
- 30:40But I know that it does drive her nuts sometimes.
- 30:42And that does creep in to my personal life.
- 30:44And it does, right, to some degree.
- 30:46But usually it's only in those kind of stressful situations, my day in day out activities.
- 30:51I do a fairly good job of separating work and life.
- 30:56I think when things get stressful, we probably just default to our anesthesia mode, maybe.
- 31:03Right.
- 31:04So that's that's how we get through our day to day jobs when things get stressful.
- 31:07I guess when it's at home, we sort of do the same thing.
- 31:10Yeah.
- 31:11And the majority of my time at home is not stressful.
- 31:13A lot of not all my time, but a lot of my time at work is a little more stressful.
- 31:16Sure.
- 31:17And so, yeah, it's when that stress level picks up at home that those characteristics
- 31:21in me start to come out.
- 31:23So let's go back to our patient.
- 31:26What kind of lines, monitors, pulmonary artery catheters, arterial lines?
- 31:31What are we thinking about putting in and why in some of these patients?
- 31:35Does every cardiac patient need a PA catheter?
- 31:39Yeah, I don't see it recommended as much anymore.
- 31:43And I'm kind of glad for that because I truly believe PA catheters are largely overused
- 31:49in cardiac surgery, even in general.
- 31:52The really only indication for one that I think is a strong indication is undifferentiated
- 31:56shock.
- 31:57Right.
- 31:58So the number of times you encounter that truly undifferentiated, I have no idea why
- 32:03this patient is so unstable, are few and far between.
- 32:07We put them in for liver transplants here.
- 32:09Well, I know the form of shock in there.
- 32:10It's vasodilatory from the liver disease and then it's turned into hemorrhagic from
- 32:14the surgery itself.
- 32:15Sure.
- 32:16I know how to fix those.
- 32:17There is no question of if it's another form of shock.
- 32:20And then in the cardiac surgery, it's almost always cardiogenic shock, maybe a little bit
- 32:24of vasodilatory sometimes.
- 32:26So I don't usually routinely want a PA catheter put in.
- 32:29Again, in cardiac surgery for some valve replacements, valve repairs for some high risk patients,
- 32:39putting in an LVAD, doing a heart transplant.
- 32:40Sure.
- 32:41But outside of that, I don't really see much of a role for using a PA catheter.
- 32:46Other monitors, arterial lines, I used to use them all the time.
- 32:52I would put them in on people.
- 32:54I only did this once or twice, so I don't want people going spreading rumors about me
- 32:57when they listen to this, but I've done it in endo a couple of times for endoscopy procedures.
- 33:02But the real role I think for arterial lines is do I need to have such tight control over
- 33:08hemodynamics that I do not have two and a half to three minutes to wait to get another
- 33:13reading to intervene?
- 33:16Or do I really truly think I'm going to need to be getting labs and objective data from
- 33:18someone on what their base excess is, what their lactate is, what their hemoglobin is
- 33:24so often that I need some point of access to get blood quickly without having to stick
- 33:28them or pause an infusion, draw off a line, that kind of thing.
- 33:34In terms of people with really bad hearts getting lower risk procedures, patients with
- 33:39EFs 15, 20%, severe pulmonary hypertension, severe valvulopathies in endo, I'm not putting
- 33:45our lines in those patients anymore.
- 33:48In EP lab, I'm not really doing it for the a-fib ablations in those patients much anymore.
- 33:52And a lot of that is knowing what my backup monitors and modalities are.
- 33:58If the proceduralist already has an arterial sheath in and I can quickly access it, then
- 34:02I'm definitely not going to put an R line in for a low risk procedure.
- 34:06If the proceduralist is using intracardiac echo in the EP lab, then they can pause what
- 34:11they're doing, flip over, look at the LVRV for me, and I can get an idea of how things
- 34:15are when they can scan a valve even less likely to put an invasive monitor.
- 34:20But the patients that arms are tucked, that I do need to manage hemodynamics on a more
- 34:26acute basis than every three to five minutes, those are the patients I'm probably putting
- 34:30an arterial line in.
- 34:32I have heard anecdotally that if you really don't like going to endo, then you should
- 34:37just put arterial lines in a lot of your patients and you quickly won't be invited back there.
- 34:41Yeah, and I think that goes true for any of our roles or rotations that we go on.
- 34:46You don't want to go to IR, just be really inefficient and slow and you won't be in IR
- 34:49anymore, right?
- 34:50This is not any, we're not making any recommendations.
- 34:54No, this is not advice for people in the future.
- 34:57You decide that you don't want to ever do ECTs.
- 34:59Don't just become really bad at them just so you don't have to do them.
- 35:01That's not the right way to do it.
- 35:03That being said, when's the last time you've been in endo, Corey?
- 35:07Every time I'm on call on the weekend, I'm there and that's about it.
- 35:11This fits great because it's always this patient got transferred from Mercy or sorry, this patient
- 35:16got transferred from an outside hospital.
- 35:17Cut that out.
- 35:19Yeah, they didn't feel comfortable doing their ERCP there because their EF is 20% and they
- 35:24got pulmonary hypertension and they're kind of decompensating so we'd like to do them.
- 35:28Well, they're in the room now so.
- 35:31But yeah, no, I get sent over there twice a year.
- 35:35Otherwise it's only on call.
- 35:37So how are we managing the hemodynamics in these patients?
- 35:41You've mentioned you might need the arterial line if you're managed again on a hyperacute
- 35:46basis.
- 35:47How are you managing their blood pressure, heart rate and maintaining cardiac output?
- 35:51What does that look like in some of these really sick patients?
- 35:54This is where I think we do so much preparation and planning in our field that it is a huge
- 36:00pet peeve of mine, drives me nuts when we identify someone as high risk.
- 36:05We say this person with their aortic stenosis and their low LVEF, they're going to have
- 36:09surgery and then we don't do anything different in terms of our anesthetic technique and management.
- 36:14So we give them the normal induction dose of propofol, we chase it maybe with some fluids
- 36:19and phenylephrine and then we're like, oh geez, that didn't work.
- 36:23We tailor your approach to your patient, know their pathology, know what your drugs are
- 36:27going to do to them and then I like to be preemptive.
- 36:31An ounce of prevention is worth a pound of cure.
- 36:33So if I know my patient has a low LVEF, I know I'm going to put them on a volatile that's
- 36:37going to depress their myocardium a little bit more, I'm empirically starting a low dose
- 36:42of an onotrip.
- 36:44If I know that what we're going to do is just vasodilate them out the wazoo and that's
- 36:48bad for them because they need all that preload because they have a severe tricuspid regurgitation
- 36:53or mitral regurgitation, then I'm going to vasoconstrict them from the start.
- 36:58And if they have a depressed RV or LVE, I'm not going to use a drug that is going to add
- 37:03pure afterload to both of those chambers.
- 37:04I'm going to use a drug that will add afterload but also maybe help those chambers squeeze.
- 37:11And that's kind of how I look at it.
- 37:13I started doing that during my fellowship and I continue to do it today.
- 37:18This is just a sidebar for people that are listening.
- 37:20I'm a huge believer that you can safely give low to moderate doses of vasopressors and
- 37:26onotropes through a peripheral IV and I do it all the time.
- 37:29Like all the sirenes that work with me over an EP, they know I'll start debutedamine at
- 37:33two and a half with a little bit of vaso when the pressures come up and the heart rate comes
- 37:37up then we induce.
- 37:38And then you're kind of preemptively bringing them up knowing that you're going to drop
- 37:42their pressure back down and you settle out at their baseline state instead of starting
- 37:48out at their baseline state, dropping their pressure really low and then scrambling to
- 37:52recover them.
- 37:53Yeah, that's something that I tend to emphasize to trainees and people who are taking care
- 38:01of very sick patients as well as it's usually better to have a little bit of hypertension
- 38:06than a little bit of hypotension.
- 38:07So hypertension, that's something that most people experience on a day to day basis.
- 38:13If somebody comes up behind them and shouts boo then they're going to be hypertensive
- 38:18and their body's used to it.
- 38:19But there's not a lot of things that we do in life that cause acute hypotension that
- 38:24might be a little bit trickier to recover from.
- 38:26Exactly.
- 38:27Yep.
- 38:28So what are some pearls for fluid management for these folks?
- 38:33We've talked about optimizing preload, afterload, all that sort of stuff.
- 38:39What are we doing beforehand to try to get these patients to their goal weight, things
- 38:44like that?
- 38:45Yeah.
- 38:46This is going back to if they're coming in our pre-op clinic, we have the time.
- 38:49It is what is your weight now on a standing scale, right?
- 38:52With not your purse on and your giant winter coat and your hat and all this stuff and your
- 38:57three cell phones and pager in your pocket.
- 39:00Having an accurate weight on them, comparing that to their dry weight, right?
- 39:03And then working with whoever is managing their conditions to potentially change their
- 39:08diuretic therapy around to get them to that dry weight state.
- 39:13If we don't have that time and I'm seeing them for the first time, again I like to keep
- 39:16things simple, cardiologists during my intern year showed me a trick.
- 39:19If you have someone laying supine in bed and you have their hand, if you can see veins
- 39:25in their hand, you have them laying supine in bed and their hand is resting on their
- 39:28body, if you lift that hand up, the farther it is above the level of the heart, if those
- 39:33veins stay plump and full on their hand, then they are probably hypervolemic.
- 39:37If you take that hand and they've rested on their body laying supine and they're flat
- 39:41there, they're probably hypovolemic, right?
- 39:43If their veins look slightly full, normal veins when they're laying flat, hand at the
- 39:46level of their heart, they're probably uvolemic.
- 39:49That's really interesting.
- 39:50I'd never heard anything like that before.
- 39:51And again, it only works when you can see veins in people, which is not all of our patients.
- 39:57We definitely have some patients that come to us with seemingly zero veins.
- 40:01Right.
- 40:02But that is one thing I like to use just to get a quick idea.
- 40:05And it's not the most accurate thing in the world.
- 40:07But yeah, if you take someone and you raise their hand above the level of their head when
- 40:11they're supine and all their veins are plump and full, chances are they're fairly voluminous.
- 40:15Like if you look at mine right now and I have it, you can't see me, but my hand is above
- 40:19the level of my head.
- 40:20I don't see any veins in my hand.
- 40:21Right?
- 40:22I bring it down onto my lap and you can start to see some fill up.
- 40:25Yeah.
- 40:26I think that makes sense.
- 40:28Yeah.
- 40:29I guess I can see it on your other hand.
- 40:30It's been down a little bit longer.
- 40:32There you go.
- 40:33So there are all these devices that are attached to people's hearts these days, complicated
- 40:39devices, LVADs, RVADs, ICDs, pacemakers.
- 40:44What are some of the considerations that you have for these patients who come in for surgery
- 40:49with some of these devices?
- 40:50What's your approach to that?
- 40:52And maybe the patient doesn't even know what kind of device they have.
- 40:55Yeah.
- 40:56So first and foremost, you need to know what that device does.
- 41:00Why is it there?
- 41:01Why did it get put in and what can it do?
- 41:04What is it doing?
- 41:05I'm going to separate it out into two categories here because if you look at pacemakers and
- 41:12ICDs, they are very different than some of these mechanical support devices that we see.
- 41:16Sure.
- 41:17I think most people know when they have an LVAD.
- 41:19Right.
- 41:20Yep.
- 41:21I agree.
- 41:22So pacemakers and ICDs.
- 41:23Okay.
- 41:24Why was it put in?
- 41:25What can it do?
- 41:26And then are they dependent on it?
- 41:28Right.
- 41:29So if someone has a pacer and they're dependent on it, I need to potentially treat them differently
- 41:34than if they are paced 10% of the time at home.
- 41:38So it's again, looking for those interrogation reports, reaching out to the rep, knowing
- 41:42what your surgeon's doing.
- 41:44Right.
- 41:45Because most of the guidelines, they've simplified it to say you don't really need to do much
- 41:48for ICDs and pacers if everything is below the belly button on the belichis.
- 41:53But if your surgeon is working on a knee and you can't put the bovie pad anywhere because
- 41:58they have replaced other knee, replaced tips, all this other stuff.
- 42:01And so they potentially put in a bovie pad, you know, up near the umbilicus somewhere.
- 42:07You might have to intervene on that device because you have EMI even though they're working
- 42:12below it.
- 42:13Right.
- 42:14So know where your surgeon's going to be working, what they're doing.
- 42:16And then am I going to need to do anything with the device?
- 42:19And pacers and ICDs are fairly simple.
- 42:20If they're pacer dependent and there's a risk for EMI because they're working above the
- 42:24umbilicus, you need to put it in asynchronous mode.
- 42:27Right.
- 42:28Because they will not pace if that device thinks that your bovie is their intrinsic
- 42:32cardiac activity.
- 42:33And if they're dependent on it, they will not have a native ejection from electrical
- 42:36activity.
- 42:38Most ICDs, they can pace and a lot of them, and this is a good point to discuss, they're
- 42:45by the ICDs.
- 42:46Right.
- 42:47So someone has put one in for cardiac resynchronization therapy, long-term.
- 42:51Someone who has an EF less than 40%, who has a prolonged QRS interval and they want to
- 42:56resynchronize their ventricles so that the RV and LV beat in sync to maximize their cardiac
- 43:01output and index.
- 43:02If they're beating in sync, the RV can generate more blood flow to the LV side and the LV
- 43:07has more blood flow to generate out to the body.
- 43:10That has been a long-term guideline from cardiology for people with heart failure, low EFs and
- 43:15wide QRSs.
- 43:16They're going to be paced like 99.9% of the time, right?
- 43:21But they are not necessarily pacer dependent.
- 43:23That just means that if you don't pace them and they're not being by the paced for synchronization
- 43:30reasons, they will have a native QRS that does lead to mechanical ejection of blood
- 43:36from the cardiac chambers, but they just might not be in sync with each other in terms of
- 43:41the RV and the LV and they might have a little bit of a decline in function.
- 43:45That is usually long-term, not short-term.
- 43:48So if you take someone's bivy ICD and you suspend or they don't get bivy paced because
- 43:54of EMI, they're not going to suddenly go from an EF of 50% to 20%.
- 44:01That's one little thing I've seen and actually caught me a couple of times in the clinic
- 44:04when I was first starting to work there.
- 44:05I'm like, well, we got to put it in asynchronous and all this.
- 44:07I call the rep and the rep is like, no, we don't.
- 44:09You're crazy.
- 44:10And they explain that to you.
- 44:12The reps know a lot about their products.
- 44:16And then the ICD is that you just don't want your patient to be shocked inappropriately.
- 44:18So again, above the embolicus, I'm putting a magnet on an ICD, which is usually going
- 44:22to suspend its anti-tachyrythmias function, the shock.
- 44:25Although most of the new ones, and you've probably seen some of these, they have auto-sense
- 44:30EMI function.
- 44:31They don't do anything to a magnet.
- 44:33And the companies firmly believe, and they have FDA approval for this, that their device
- 44:37is smart enough to know the difference between bovey, radio frequency ablation, lithotripsy,
- 44:43that kind of stuff, and an actual conduction from the heart.
- 44:48Do you believe that?
- 44:52I've only been in a situation where that could potentially be a problem about four or five
- 44:57times and it's worked as it should every time.
- 45:00Do I completely trust it?
- 45:01No.
- 45:02But again, I'm a pessimistic person who's very paranoid.
- 45:05Yeah, that makes sense.
- 45:06Yeah, but the reps will refuse to turn those off.
- 45:09Like if you call them and you want the anti-tachythmias function turned off, they just were like,
- 45:13you don't need to do that.
- 45:14We're not doing that.
- 45:15Interesting.
- 45:16So let's say that we've made it through the case.
- 45:20We have kept them alive through the operation.
- 45:23We've maintained a smooth anesthesia.
- 45:25But now we have to turn that off and send them to an ICU.
- 45:29How are we going to keep them stable going from an anesthetized state where they're not
- 45:34feeling anything to a non-anesthetized state when they're awake, maybe their heart rate
- 45:39and blood pressure are going up as a pain response.
- 45:42They're sort of coming back to reality and experiencing some of the anxiety that comes
- 45:47with waking up from anesthesia.
- 45:49How are we going to manage the patients who are going through that transition?
- 45:55We didn't talk about LVADs or RVADs and I don't think we necessarily should for this
- 45:59particular talk because that's a whole big in-depth discussion about other cardiac devices.
- 46:03I was going to ask you a follow-up about LVADs in a second.
- 46:08That could be a potential topic for a future podcast.
- 46:12So you're undoing what you did at the beginning at the end of the case.
- 46:19Keep it simple.
- 46:20So at the beginning, they went from their baseline normal walking, talking self to fully
- 46:24anesthetized.
- 46:26I know what my drugs did.
- 46:27I know what I did to counteract that.
- 46:29If it was something that I had to counteract because of their pathology.
- 46:31Now we have to undo that and ideally we do that smoothly and not abruptly over the course
- 46:38of five or ten minutes.
- 46:41So before I start that undoing process, because if you're just undoing something, I started
- 46:472.5 adbutamine and 0.03 units per minute of vasopressin while I was inducing and maintaining
- 46:54anesthesia and now I'm stopping those drugs because I'm turning my anesthesia off.
- 46:58That's a fairly simple thing to do.
- 47:00You can just stop them, you can wean it every five minutes or so, half the adbutamine, wait
- 47:04three minutes and then turn it off again as your volatile gets lower and lower and lower.
- 47:09But the bigger question is did I or did the proceduralist do something that I need to
- 47:15keep in mind when I am thinking about undoing the things that I did?
- 47:20An example of this is in the EP lab, maybe they did an ablation and they end up giving
- 47:24three liters of crystaloid through their catheters during ablation and someone within you have
- 47:29to do it.
- 47:30Well in that patient, I can undo what I did but that doesn't get rid of the fact that
- 47:34they might be grossly volume overloaded now because of what the proceduralist had to do
- 47:39during their procedure.
- 47:41Or in the knee replacement in someone with really bad aortic stenosis and a low LVF,
- 47:45well I can undo what I did if I started a vasopressor before I induced them to maintain
- 47:50their afterload so that they didn't get ischemic and have trouble ejecting across that stenotic
- 47:54valve.
- 47:56But if I do that and the surgeon lost two liters of blood during the knee replacement
- 48:00and they don't have that preload anymore, it doesn't matter if I decrease that afterload,
- 48:05my volatile comes off, they're not going to be able to generate it because they don't
- 48:07have the volume to anyway.
- 48:08They don't have enough to fill the LV to generate a pressure to overcome that.
- 48:12So if your proceduralist has done something that doesn't allow you to undo what you did,
- 48:16you don't undo it.
- 48:17And I think that's a very important thing.
- 48:19You might come in with the best intentions and plans.
- 48:22This patient was coming for an aphid ablation, they're supposed to go home at the end of
- 48:25the day.
- 48:26Well they might need to stay and they might need to be potentially ICU status.
- 48:31And it's assessing the patient for that at the end.
- 48:33And so a lot of times it's an easy thing to do.
- 48:36Again if your proceduralist has ice or if you're comfortable putting a probe on their
- 48:40chest real quick and looking at their heart, is their LV dilated out?
- 48:43Does it look pretty close to baseline?
- 48:47Did the surgeon lose a lot of blood and did we account for it?
- 48:51And if so then you can give it a shot of weaning your drugs as you wean your anesthetic, your
- 48:58vasoactive drugs as you wean your anesthetic and try to get them to a state where they
- 49:01are back at their baseline.
- 49:04And I think that's an important thing too.
- 49:06When people come in, if they come in walking and talking, that blood pressure, that heart
- 49:12rate, that loading condition is probably compatible with life.
- 49:17So if you can get them to that same spot at the end then they'll probably be okay.
- 49:22But you have to know what the proceduralist did and sometimes you can't get them to that
- 49:27state quickly and easily.
- 49:28And you have to change your plan from a simple outpatient procedure to maybe an ICU admission.
- 49:34If someone's borderline, I keep it simple.
- 49:36I try to undo what I did and if they get worse I redo what I did.
- 49:41And then I say okay I tried.
- 49:43This is what happened.
- 49:44We might need to escalate their care.
- 49:45We might need to change the path that they were on in terms of where they go after the
- 49:48procedure.
- 49:50So let's go back to your storm chaser days for a second.
- 49:53You walk into a room.
- 49:56You don't really know much about the patient except somebody has said they have a bad heart
- 50:01and the patient is crashing.
- 50:03What is your approach in your mind to these sort of crisis situations that you seem to
- 50:08find yourself in quite a bit?
- 50:11It is preparing.
- 50:12So if someone like you say you're peri-arrest, a lot of times you can get someone back if
- 50:18they do arrest pretty quickly but you have to have the right tools there.
- 50:21So if someone is crashing and we don't have more help in the room, we haven't brought
- 50:24the crash cart in, we don't have pads on the patient, we don't have the drugs that we need
- 50:28if they do code in the room, it's getting those supplies, getting those things ready
- 50:31so that when it happens you're ready to treat it off the bat.
- 50:34And then after that it is well what has happened so far?
- 50:39You come in, the heart rate is 180, the patient's map is 40, what has happened?
- 50:46What did someone do?
- 50:47Well they just insufflated the abdomen but they're not sure about their trocar.
- 50:52Before that you assumed they were fine, they haven't been this unstable from the start
- 50:55of the case.
- 50:56Usually there's an event, something that happened acutely that has caused this change in patient
- 51:00condition and then if you know what that last thing was, what that event was, then you can
- 51:05start building a differential of things that it could be that have caused it.
- 51:08Maybe that trocar went into a vein and they injected a bunch of CO2 into a vein or maybe
- 51:13they built up a bunch of pressure in the abdomen and the patient didn't tolerate that from
- 51:17peritoneal stretch and decrease in preload from that pressure.
- 51:21So that's my kind of first thing, get the supplies in, again pessimistic, I assume they're
- 51:25going to code, get the supplies in the room and then what was the last thing that happened,
- 51:29how were they before that and what changed so I can build a differential and start treating.
- 51:34So let's say that you're a resident or a medical student that's listening to this and they
- 51:41really think that what you're saying makes a lot of sense to them, maybe they're really
- 51:45pessimistic as well and paranoid.
- 51:49What would you recommend that they do in order to walk in your shoes?
- 51:54What kind of resources do you recommend?
- 51:57How would you advise residents and medical students that are interested in pursuing the
- 52:02kind of work that you do?
- 52:04I think a lot of, med students probably don't mind hearing this but a lot of residents probably
- 52:09don't like hearing this, it's work more, do more cases, just get more reps and so I moonlit
- 52:14a ton as a resident and that just means you're seeing more.
- 52:18You have an opportunity to see a condition, a pathology, you have an opportunity to see
- 52:22some kind of procedural complication that you may not see otherwise and you seek out
- 52:28those difficult patients, those difficult cases, you don't shy away from them and say you know
- 52:33what I'd really just like to do AV fistulas all day today.
- 52:38You always push yourself to kind of get exposure, get experience, the more experience you have
- 52:44the more you're going to be like I've seen this before, I've seen something like this
- 52:47before or I encountered this particular complication, I know this pathology as it relates to the
- 52:54surgery.
- 52:55That would be thing number one and I didn't moonlight because that was not why I moonlit
- 53:01at the time, because moonlit can get you paid.
- 53:05But that is a positive thing that came from it and if you look at my class there was a
- 53:09group of us that all graduated together and there was three or four of us that moonlit
- 53:13a ton and there was a noticeable difference towards the end of our CA3 year in terms of
- 53:19what some of us were more comfortable with and it was just because we'd seen more, we'd
- 53:22done more.
- 53:24If you do 600 more cases than someone else throughout the course of four years you're
- 53:29going to have more exposure.
- 53:30And that's why in residency, I tell them all the time, you're going to learn more your
- 53:35first two years out of residency than you probably did during the majority of your residency
- 53:40just because your exposure gets doubled or tripled if not quadrupled of what you see.
- 53:48What kind of style points or points of personal preference have brought you success in your
- 53:52career both in and out of the operating room?
- 53:55I think if you look organized, you look like you know what you're doing and you kind of
- 54:03have a plan and a backup plan, right, because you're a little paranoid, then people are
- 54:09going to have more confidence and faith in you even if they should or shouldn't.
- 54:12So little things like being on time, keeping your work area clear, being like, well, I
- 54:20thought about this and so I was thinking if they insufflate and the patient doesn't tolerate
- 54:24it, I'm going to ask them to go down with insufflation right away.
- 54:27Just having thought through those situations.
- 54:29That's how I started my day as a resident.
- 54:31When I'm setting up my room in the morning, I was thinking what things could go wrong
- 54:35with this case and how I would respond to that.
- 54:39What can I do to avoid it?
- 54:41And again, I'm keeping things clean.
- 54:42I'm knowing my patient.
- 54:43I'm knowing what their labs were, their last test.
- 54:46That way you're kind of mentally prepared and you're walking through that.
- 54:50And similar to what some athletes and professionals do is they kind of visualize things.
- 54:56If you talk to or you look at interviews, I don't talk to athletes or professionals
- 54:59at all, but if you read interviews with some of these people, they're like, I just would
- 55:03visualize myself finishing the last 10 miles of this ultra marathon uphill in the mountains
- 55:10or I would visualize myself going downhill on the slaloms and this is what I would be
- 55:15doing.
- 55:16If you do that for simple things like you're lap happy on someone and you kind of walk
- 55:22through mentally all the steps of that case, induction, maintenance, emergence, all those
- 55:26things, you're kind of mentally prepared for stuff.
- 55:30You're not so surprised when things happen.
- 55:33And so I think that is something that also, again, even if it's not justified, people
- 55:38when they see that and they see that you have this plan or you responded quickly because
- 55:43you'd already thought about this, everything's not a cluttered mess.
- 55:48They just, it calms everyone else down.
- 55:52That kind of reminds me of one of the things that I like to ask residents at times, which
- 55:58is what do you think would be the thing that would kill the patient the fastest right
- 56:03now?
- 56:04Yes.
- 56:05Corey, thank you so much for joining us.
- 56:08Yeah, thanks for having me, John.
- 56:12Thanks for joining us for this month's episode of Style Points.
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- 56:36Lastly, take a deep breath, open your eyes.
- 56:41We're all done.