urbanscout50
Active Member
62 messages
joined Nov 2009
Man, this discussion is getting deep into some serious territory. Honestly, the most important rule is that there’s no single rule for which anesthetic to use. You pick the drug (type and dose) and the whole technique based on how the patient is doing overall, what kind of surgery it is, the surgeon's skill level, and—let's be real—the anesthesiologist's own experience, knowledge, and personal preferences. All this talk about "I love this drug" or "I hate that one" is pretty pointless; forcing a specific choice just limits our toolkit, which can actually be dangerous depending on the situation.
Take succinylcholine, for instance. Everyone loves to harp on its life-threatening side effects—things like arrhythmias, malignant hyperthermia, or severe bradycardia that's a nightmare to fix in patients on beta-blockers. But nobody ever mentions the one "harmless" side effect that is absolutely miserable for the patient, especially after quick, minor procedures: intense muscle soreness. Every single muscle you didn't even know you had starts aching (trust me, I've been there). So, I have to ask, why put a patient through that? Especially if the procedure is long enough to allow for induction with a different relaxant. And don't even get me started on drug interactions. Why give something if it isn't strictly necessary?
Esmeron. It’s a solid relaxant, and if you go with a higher dose, it gets you intubated within a minute, much like lepto. The catch with Esmeron is that allergic reactions are pretty common. Then there's Norcuron, which is another good relaxant that people seem to ignore. It definitely has its place, particularly for inducing patients with asthma or allergies (assuming Pavulon isn't available), and it actually wears off faster than Esmeron.
Etomidate is a decent drug, but it tends to make patients nauseous more often. It’s usually my go-to for patients with allergies, asthma, or unstable hemodynamics. However, Etomidate can cause such intense tremors that it's almost like they had lepto, which can raise intra-abdominal pressure and trigger vomiting. So, performing an induction on a full stomach becomes a real question mark, doesn't it?
Thiopental—the big pharma industry basically pushed this one out of the market. Still, compared to Propofol, the wake-up period after Thiopental is longer. So, why bother using it for minor cases where you want the patient to head home quickly?
Propofol. Now we're talking. It's a fantastic anesthetic—fast-acting, and patients wake up quickly and lucid (unless, of course, they were also given some Dormicum, Thiopental, or Fentanyl). It shuts down the gag reflex nicely, making it great for intubation without relaxation or using a laryngeal mask. Plus, if they're lucky, they have some pretty pleasant dreams. One huge plus: it doesn't cause nausea. In fact, giving small doses of Propofol toward the end of anesthesia is actually recommended to prevent post-op nausea and vomiting.
Of course, it's not perfect, and you have to keep its downsides in mind. The biggest issue is how it hits the hemodynamics. Propofol drops blood pressure more than almost any other anesthetic, especially if you push it fast. In my book, giving Propofol to a polytrauma patient who's bleeding out, in shock, or severely dehydrated from an ileus is just plain reckless. In those cases, I think Ketalar is the way to go, even though nobody seems to mention it here.
Ketalar. In my opinion, this is the gold standard for patients in shock, hypovolemic, or heavily traumatized. It helps bump up blood pressure and heart rate, which helps prevent a total cardiovascular crash. Another huge perk is the analgesic component. Basically, with one drug, the patient is asleep and pain-free. Once they're hemodynamically stable—whether that's because they recovered or the anesthesiologist and surgeon stabilized them—you can switch to something else or just supplement the Ketalar with smaller doses of other drugs. Just keep in mind that for "cold" procedures, you should probably add something like Norcuron or Dormicum to avoid or dampen those post-Ketalar hallucinations (which are usually more annoying for the people around the patient than the patient themselves).
We could go on forever like this about every single drug. When it comes to other medications or specific maneuvers, you really should follow the established protocols in every situation where they are prescribed, regardless of what the "house style" is or what the old-timers say. Because if everything goes smoothly, great. But if things go south, everyone—including those veteran doctors who set the "house style"—is going to ask, "Why didn't you do this? It was right there in the protocol." At that point, neither the house rules, nor the advice of your seniors, nor your own opinion on a drug's efficacy will save you. You'll be in a massive bind, facing potential lawsuits and a career that's on the line.
In my book, preoxygenation is a must for those cold procedures where you aren't expecting any intubation nightmares. It’s especially vital for the younger, less experienced anesthesiologists out there—I mean, it’s happened more than once where solid preoxygenation basically saved someone's neck with patients who seemed totally routine. You don't have to be all intense about it, jamming the mask onto their face and forcing them to breathe oxygen for several minutes until they feel like they're suffocating. Honestly, you can just run the bypass on the anesthesia machine, hold the mask a few inches away from their face, and tell them to take a couple of deep breaths. That's plenty. You can even just ride those few deep breaths right after you induce them with Thiopental.
Anyway, that's the gist of it.