Discover and read the best of Twitter Threads about #TCDs

Most recents (2)

1/
Once upon a time I wrote a #tweetorial about #TCDs. It ended with this great hook feat Beyonce… and… then I got distracted with other things because (⬇️)

(Thinking I don’t remember this post at all, but great! I want to read about TCDs, here you go: )
2/
Also, side note, can we talk about Meredith gray’s hair from that tweetorial? If you are in really in medicine and have this perfect blow-out hair, please DM me so I can know your secret.

Ok, back to #TCDs.
3/
Takeaways from the last #tweetorial
⭐️TCDs use u/s waves to calculate the velocity of intracranial blood flow
⭐️We measure systolic velocity (PSV), end diastolic velocity (EDV), Pulsatility Index (PI) & mean flow velocity (MFV)
⭐️TCDs are freq used for vasospasm monitoring
Read 24 tweets
1/🧵
In the early days of fellowship, I remember checking our SAH patients’ transcranial dopplers (TCD), scanning the Vmeans & if they were ~<70 cm/sec throughout thinking:

“Great. Perfect. TCDs globally low. Nothing to worry about here!”

Right?

A #tweetorial on TCDs
2/
Right? Sort of.

🚨Note. This is not a #tweetorial about if large vessel vasospasm is the cause of DCI or just an epiphenomenon OR if treating vasospasm is the way to improve functional outcomes …That is important!... but that is not this tweetorial.
pubmed.ncbi.nlm.nih.gov/21285966/
3/
Given #TCDs is a pretty large topic, this @medtweetorial will be told in 3 parts:
Part 1⃣:
⭐️Basic principles of TCDs
⭐️Use of TCDs to detect Vasospasm

Part 2⃣: The Pulsatility Index - why it matters
Part 3⃣: The Utility of TCDs as an ancillary test in BDT
Read 25 tweets

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