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Does sodium thiopental, or other barbiturate anesthetics for that matter have a high or low incidence of post operative nausea and vomiting?
When’s the last time you used thiopental?Does sodium thiopental, or other barbiturate anesthetics for that matter have a high or low incidence of post operative nausea and vomiting?
Higher incidence. This is the main advantage of propofol in my opinion. STP has less hemodynamic changes than propofol because while causing vasodilation it also causes an increase in HR which will counter the hypotension somewhat. It’s a good drug but it’s a nasty recovery when compared to propofol.
I think it is actually the lack of anti-emetic effect. We also have to remember that when STP was the main induction agent two decades ago, people in general used to give more opiates than today and frequently used Nitrous Oxide, which might be the cause of the perceived increase in PONV.Does it actually cause nausea and vomiting? Or does it just not have antiemetic properties and help to mitigate PONV from the surgery like propofol does?
It's a great drug. You give 500 of thio to a pregnant lady and she's out long before the sux. 200 of propofol and some of them are still talking to you...
I think it is actually the lack of anti-emetic effect. We also have to remember that when STP was the main induction agent two decades ago, people in general used to give more opiates than today and frequently used Nitrous Oxide, which might be the cause of the perceived increase in PONV.
I have a hard time believing a single induction dose of propofol has any significant anti-emetic effect post-op. I do believe in the low dose prop gtt though PONV.
What is it that you believe in?
Although I've never used propofol as a last-resort solution to ponv, I was under the impression that a simple 10 to 20 mg push of propofol does the trick. Any truth to this?Running sub-hypnotic dose prop at 25ish mcg/kg/min for PONV prophylaxis. Even more effective though is running prop a bit higher and reducing the volatile to MAC aware levels (0.4 MACish). I have done the latter in a number of patients now with a Hx of severe PONV with great results and avoided the PITA that is pure TIVA.
I have a hard time believing a single induction dose of propofol has any significant anti-emetic effect post-op. I do believe in the low dose prop gtt for PONV though.
So in your opinion, what do you think a count for the difference in PONV rates between propofol and Thiopental?
Never given Thiopental - I trained after it went the way of the dinosaurs, so I have zero first hand experience with it. It just makes no sense to me from a pharmacological standpoint that a single dose of prop would prevent you from puking a few hours after it was given when it redistributes in 5 minutes.
Doesn’t burn the way propofol does, too. I used to like it for pediatric IV inductions for that reason. Too bad we lost it.
and yet accidental awareness on induction is more common with thio.It's a great drug. You give 500 of thio to a pregnant lady and she's out long before the sux. 200 of propofol and some of them are still talking to you...
Many reasons for that incl half the flipping powder left in the vial on reconstitution.and yet accidental awareness on induction is more common with thio.
5th National Audit Project (NAP5) on accidental awareness during general anaesthesia: summary of main findings and risk factors † ‡ | BJA: British Journal of Anaesthesia | Oxford Academic
Brevital is just as good (I liked it more than STP) and you can still get that. Probably not as cheap as it used to be.
We used Brevital for routine inductions a few years ago during the propofol shortage. The incidence of myoclonic movement is so high, that if you want to stick an LMA in someone after inducing with Brevital, you need to use muscle relaxant too. It's a fine drug if you flush it through the IV with some rocuronium.Brevital is just as good (I liked it more than STP) and you can still get that. Probably not as cheap as it used to be.
We used Brevital for routine inductions a few years ago during the propofol shortage. The incidence of myoclonic movement is so high, that if you want to stick an LMA in someone after inducing with Brevital, you need to use muscle relaxant too. It's a fine drug if you flush it through the IV with some rocuronium.
it's the best evidence you're going to get. no one is going to do a prospective randomised blinded study on thio vs propofol.Many reasons for that incl half the flipping powder left in the vial on reconstitution.
Nap5 is interesting reading but a self reported survey. Hardly top quality evidence
We used Brevital for routine inductions a few years ago during the propofol shortage. The incidence of myoclonic movement is so high, that if you want to stick an LMA in someone after inducing with Brevital, you need to use muscle relaxant too. It's a fine drug if you flush it through the IV with some rocuronium.
Three today. I can’t stand the whining.How often are you inducing pregnant ladies??
Never given Thiopental - I trained after it went the way of the dinosaurs, so I have zero first hand experience with it. It just makes no sense to me from a pharmacological standpoint that a single dose of prop would prevent you from puking a few hours after it was given when it redistributes in 5 minutes.
Did you find a lot of PONV with Brevital?
Then I guess you don't believe in ERAS and all the data that shows that giving some ketamine, gabapentin, tylenol, etc. improves pain several months later.
I don’t have any solid data to refute this. But, I do a few things that prove to me that there is an antiemetic effect of propofol that can be harnessed in one dose. While many of my partners like to run a propofol gtts for PONV prevention I typically give 20-40mg of propofol at the time of emergence to pr vent PONV. My results were actually better than most when we looked at it. But I will admit it is multifactorial. Good blocks, judicious narcotics, no reversal when not needed, etc.I have a hard time believing a single induction dose of propofol has any significant anti-emetic effect post-op. I do believe in the low dose prop gtt for PONV though.
I do this exact thing.Running sub-hypnotic dose prop at 25ish mcg/kg/min for PONV prophylaxis. Even more effective though is running prop a bit higher and reducing the volatile to MAC aware levels (0.4 MACish). I have done the latter in a number of patients now with a Hx of severe PONV with great results and avoided the PITA that is pure TIVA.
Yes. Absolutely.Although I've never used propofol as a last-resort solution to ponv, I was under the impression that a simple 10 to 20 mg push of propofol does the trick. Any truth to this?
I don’t have any solid data to refute this. But, I do a few things that prove to me that there is an antiemetic effect of propofol that can be harnessed in one dose. While many of my partners like to run a propofol gtts for PONV prevention I typically give 20-40mg of propofol at the time of emergence to pr vent PONV. My results were actually better than most when we looked at it. But I will admit it is multifactorial. Good blocks, judicious narcotics, no reversal when not needed, etc.
But more importantly, when a pt at our surg center is nauseated the nurses like to call me because I give 20mg of propofol while many of my partners don’t. It works like magic.
Agreed!I'll buy that a dose at the end or in PACU helps, but not your induction dose.
Three today. I can’t stand the whining.
Halothane, tons of fentanyl, surgical technique, preventive meds a lot has changed in 30 yearsSo in your opinion, what do you think a count for the difference in PONV rates between propofol and Thiopental?
Halothane, tons of fentanyl, surgical technique, preventive meds a lot has changed in 30 years
We used methohexital for 6 years in over 1000 patients per year for pain cases, and had no PONV in 99%+. Granted, it was a single drug being used and it was used for deep sedation in boluses, but had vomiting in only one patient I can remember, and transient nausea in only a few. Myoclonus was indeed seen as were hiccoughs not infrequently. We had one case of superficial tissue necrosis when an IV migrated subcutaneously. Compared with propofol, the onset and offset are both more rapid.
Yes imhoSo it was more the other antiquated factors/ techniques that happened to be used at that time with the thiopental (ie, type of inhalation anesthetic used, opioid use, etc) rather than just the thiopental being emetogenic in and of itself.
irrelevant. i dont think the drug is available at any hospitalDoes sodium thiopental, or other barbiturate anesthetics for that matter have a high or low incidence of post operative nausea and vomiting?
Yes imho
irrelevant. i dont think the drug is available at any hospital
Neo glyco or bridion does not contribute to ponv from a recent lit searchno reversal when not needed, etc.
But more importantly, when a pt at our surg center is nauseated the nurses like to call me because I give 20mg of propofol while many of my partners don’t. It works like magic.
I also believe that you can safely run gas on patients with Ponv as long as you emerge them with propofol and have as much end tidal agent off as possible.I don’t have any solid data to refute this. But, I do a few things that prove to me that there is an antiemetic effect of propofol that can be harnessed in one dose. While many of my partners like to run a propofol gtts for PONV prevention I typically give 20-40mg of propofol at the time of emergence to pr vent PONV. My results were actually better than most when we looked at it. But I will admit it is multifactorial. Good blocks, judicious narcotics, no reversal when not needed, etc.
But more importantly, when a pt at our surg center is nauseated the nurses like to call me because I give 20mg of propofol while many of my partners don’t. It works like magic.
Is propofol that expensive? I'm ignorant when it comes to prices, but I'd like to think sevo is more expensive than propofol. You should be thanked (maybe?)!my hospital will hate me for this, but i propofol infuse just about everyone. i know it’s ridiculous but i just dont want nauseated patients and people complain enough. i try to stack the deck in my favor. ive gotten no gripes from pharmacy or a “propofol bill” yet
plus. i like the way old folks wake up with propofol vs gas. no evidence, but they seem less agitated than with gas
Anticholinesterase side-effectsNeo glyco or bridion does not contribute to ponv from a recent lit search
irrelevant. i dont think the drug is available at any hospital