Profile picture
Jack Iwashyna @iwashyna
, 6 tweets, 2 min read Read on Twitter
#BigData #ICU #sepsis research I wish some1 would do

Optimal Duration of Time-Limited Trials in Critically Ill Patients

"If they are going to respond to this, we should see a response by ..."

What are median + 95th percentile for responses to common life-saving therapies?
I feel like we "know" this for lots of small things
- Lasix should make 'em pee within 20 minutes
- PEEP improves oxygenation in 20 minutes
- uroseptic shock should break within 24 hour
There are some scattered superb research projects:
- optimal durations of SBTs
- optimal time to neuroprognostication s/p anoxic injury
- Blood cultures will turn positive for MRSA w/i 48 hours if they are going to
(of course as I write this, I am quite dubious about the evidence base upon which most my "knowledge" rests)

Side-project: cross-site and international variation in clinician folk beliefs in time-to-response of common ICU therapies. How do folks decide when to redose?
But as we think about #TimeLimitedTrials, can we move beyond our experience-derived anecdotes to a more rigorous information basis?

Project 1: Time to physiologic response or (time profile of likelihood of death if no response for common treatments, purely observational
Project 2: Causal inference version: during what time periods is physiologic response a valid surrogate marker of ultimate response to therapy?

Project 3: Variation in folk-beliefs and practices (actual redosing intervals)
Missing some Tweet in this thread?
You can try to force a refresh.

Like this thread? Get email updates or save it to PDF!

Subscribe to Jack Iwashyna
Profile picture

Get real-time email alerts when new unrolls are available from this author!

This content may be removed anytime!

Twitter may remove this content at anytime, convert it as a PDF, save and print for later use!

Try unrolling a thread yourself!

how to unroll video

1) Follow Thread Reader App on Twitter so you can easily mention us!

2) Go to a Twitter thread (series of Tweets by the same owner) and mention us with a keyword "unroll" @threadreaderapp unroll

You can practice here first or read more on our help page!

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just three indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member and get exclusive features!

Premium member ($3.00/month or $30.00/year)

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!