oh, the life & times of remdesivir! - let's review the bizarre trajectory we've taken with this medication! with emoji's to represent each study ๐คฃ
we start with a retrospective series of patients treated with remdesivir under the banner of "compassionate use." most patients didn't die. this paper has so many flaws, at this point it's merely a case study in horrific research design ๐คฎ (commentary: bit.ly/2XBwnx1)
next: the 1st placebo-controlled trial. the primary endpoint (time to clinical improvement) was negative, as were most 2nd endpoints (including viral load). the only glimmer of benefit was faster clinical improvement in one slicing of the data ๐ฅด (bit.ly/3lIxnXZ)
next: ACTT-1. blinded RCT of remdesivir found accelerated recovery in patients on remdesivir (without any effect on mortality). this became the raison d'etre of remdesivir - it would shorten hospitalization! woohoo! resources saved! ๐ (bit.ly/3AG8rH7)
weird interlude: an RCT comparing 5 days vs. 10 days of remdesivir found no benefit from longer therapy, but maybe increased toxicity. whoops! keep on moving folks, there's nothing to see here!! ๐ค (bit.ly/3tWWqKv)
SOLIDARITY trial: when using the drug in an *open-label* fashion, patients treated with remdesivir actually spent *longer* in hospital (to finish their course). so the concept of using remdesivir to reduce hospital LOS & save resources is debunked ๐ฉ (bit.ly/2Z72WmC)
DISCOVERY trial: another open-label multicenter RCT that essentially replicates SOLIDARITY. no differences were found in clinical endpoints, mortality, viral load, or ventilator-free days. ๐ข
this editorial on the DISCOVERY trial is a wee bit generous, but I agree with the conclusion - remdesivir administration should be restricted to clinical trials (until unequivocal benefit can be established) ๐
there is a threat that the goal posts on remdesivir could be shifted once again, based on a weird secondary composite endpoint. please note that this would be the THIRD shift:โ๏ธ 1) remdesivir saves lives 2) remdesivir saves hospital beds 3) remdesivir affects weird composite
key point from the fine print: pregnant or potentially pregnant women were excluded in these trials (including ACTT-1; shame on NEJM for sneaking this into the supplemental). remdesivir is a nucleotide analog with potential teratogenicity - so its use in pregnancy is sketchy ๐ฌ
so where does this leave us? remdesivir is basically the NIH's version of hydroxychloroquine or ivermectin. it doesn't work, but it's nearly impossible to stomp out. as quickly as it is proven to fail for one thing, the goal posts immediately shift to another target ๐ชณ
the reason remdesivir fails to work in most hospitalized patients is that viral load is *already* dropping by the time patients get very sick. so immunomodulators work, but antivirals don't ๐คทโโ๏ธ (bit.ly/3nQThLf)
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fresh RCT on the effects of a continuous infusion of hypertonic saline for traumatic brain injury (#1/6) jamanetwork.com/journals/jama/โฆ
patients were randomized to an infusion of 20% NaCl for 48 hours. as shown here, the infusion was successful at pushing sodium levels to the mid-150s, with nice separation between groups (#2/6)
initially, patients receiving hypertonic infusions had fewer episodes of ICP elevation. however, their brain cells adapted rapidly to the higher tonicity... so when the hypertonic was stopped they had *rebound* elevation of ICP (#3/6)
if you don't immediately know why this paper is garbage, then read this explanation (bit.ly/3klwkek). in short, time-to-intervention studies are retrospective correlational junk which continue to infest the scientific literature (rantorial #1/4)
the data from this study actually suggest that early antibiotics in pneumonia are *bad*, but early antibiotics in septic shock are *good*. this obviously isn't true -it merely serves as an illustration of what happens when you conflate correlation with causality (rantorial #2/4)
the study is funded and largely performed by Shionogi (a company producing - you guessed it - antibiotics!). this may explain their unbridled enthusiasm with the conclusion that early antibiotics will save the world (rantorial #3/4)
three short chapters on gastrointestinal hypo-motility in critical care.
๐ฃthis topic often gets *ignored* until there's a serious complication
๐ฃearly attention to motility can avoid iatrogenesis & facilitate recovery...
(thread #1/4)
ICU gastroparesis
๐คฎ manifests as tube feed intolerance (but don't assume that feeding intolerance = gastroparesis!)
๐คฎ a post-pyloric feeding tube can treat this nicely. otherwise erythromycin +/- metoclopramide
๐คฎ treat this- don't just watch/wait (#2/4) emcrit.org/ibcc/gastroparโฆ
ICU ileus
๐คฎprevention is key- avoid opioids, early enteral nutrition, early mobility๐
๐คฎNG drainage *only* if needed for symptomatic relief
๐คฎprokinetic meds don't work, but *oral* naloxone might help among patients on significant opioid doses (#3/4) emcrit.org/ibcc/ileus/
a fresh review article on pancreatitis in the Lancet is some hot garbage. as Eduardo rightly pointed out ๐, the bit on fluid resuscitation is nuts. but there are more errors, which merit a short #rantorial... 1/4
one RCT showed that delayed feeding was OK... in a population with mostly *mild* illness. the authors wrongly extrapolate this to *all* patients. esp for an intubated patient, there is no reason to delay feeding for 72 hours! #rantorial 2/4 emcrit.org/ibcc/pancreatiโฆ
regarding analgesia, the authors suggest that opioids could be used to avoid non-opioids! ๐คฌ๐คฌ this is backwards. the goal is generally to use non-opioids to reduce the opioid dose, and thereby *avoid* opioid-induced side effects (especially illeus). #3/4 emcrit.org/ibcc/pain/
Tobin vs Gattinoni: Infinity War๐ฃ
Get some more popcorn ๐ฟ
Let's start back at the beginning...
๐ฅRound #1: Tobin's original editorial casts shade on P-SILI & recommends our usual, conservative approach to intubation (rather than pre-emptive intubation) bit.ly/3h7wx3r
Round #2: Gattinoni replies
๐ฅ3 citations to support existence of P-SILI
๐ฅclaims COVID patients have unusually good compliance based on observing hundreds of patients (no data)
๐ฅrecommends using esophageal pressure swings as a trigger for intubation ๐คก bit.ly/3aAHGaA
Round #3: Tobin strikes back
๐ฅMajor flaws noted in three citations supporting the existence of P-SILI (still hasn't been clearly demonstrated, even in animal models ๐)
๐ฅLack of evidentiary support for esophageal pressure thresholds bit.ly/3aEmUXB