Cite this post as:
Scott Weingart, MD FCCM. Join the EMCrit G+ Community Page. EMCrit Blog. Published on February 10, 2013. Accessed on April 26th 2025. Available at [https://emcrit.org/emcrit/emcrit-google-community-page/ ].
Financial Disclosures:
The course director, Dr. Scott D. Weingart MD FCCM, reports no relevant financial relationships with ineligible companies. This episode’s speaker(s) report no relevant financial relationships with ineligible companies unless listed above.
CME Review
Original Release: February 10, 2013
Date of Most Recent Review: Jul 1, 2024
Termination Date: Jul 1, 2027
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First of all, thank you Scott for the great podcasts, which have managed to make my recent hour long commute time well spent! I am an Emergency Medicine Trainee in the UK, and as part of of my final exams need to write a in depth critical appraisal topic review (basically a literature review). My topic is ‘ In a patient in traumatic cardiac arrest following blunt trauma, in whom a eFAST scan idetifies a pericardial effusion, is there any benefit of performing an Emergency Department Thoracotomy?’. There is a lot of research out there, but none looking at blunt… Read more »
Hi Scott,
I really liked the chapter about errors in your book, but I can’t find any links on the blog to discussing these.
Any external links/ resources on cognition etc would be great
Will
I have a question: I listened to the first and second vent lectures which I loved- but you talk about IFR and we don’t have that on our vent (LTV 1200). We have I -time which on an adult on our vent ranges from 0.3 to 3.0. I could find specific i-times for infants and pediatrics but not adults. Without having to do an equation what is the standard i time for an adult? Our vent has been at 1.0, which according to the pediatric information is less than recommended for over 6 years old (1.2). Thanks!
Hi Scott,
My question relates to the Boston Bombings.
Jeff Bauman lost both his legs in the attack but did not appear to lose a
great quantity of blood.
This is something I do not understand.
Can you clear this up for me ?
I have searched the internet but have been unable to find an answer.
I understand that cauterisation and crushing injuries can restrict blood loss but
I do not think these causes were relevant in this instance.
Many Thanks
John
aside from those mechanisms; hypotension will lead to limited blood loss until someone raises the pressure.
Thank you for responding.
I looked up hypotension and it did not mention trauma as a cause.
Can you explain how it would be a factor in the case of Mr Bauman ?
Many Thanks
John
I’m sorry I don’t understand your question
Sorry ! Mr Bauman had 2 people lying beneath him soon after the explosion which removed his legs, his right leg above the knee , his left below the knee. I would have expected those 2 people to have had significant amounts of his blood on them. Subsequent photographs do appear to show this to be the case. I am sure there is a good medical reason for this and I would like to know what it is. From your last answer you seemed to imply that hypotension could be a factor given that the other reasons for limiting blood… Read more »
Hello Scott, Question re: autotransfusion. “Literature at that time (I don’t have it at hand) strongly suggested that activated complement and clotting factors in shed blood from mediastinum / chest could initiate or worsen a consumptive coagulopathy. There was certainly no apparent benefit of this practice to patients and so it was discontinued. Reinfusion only occurs after washing. Subsequently, I have personally seen severe DIC associated with direct re-infusion of unwashed pericardial blood (high bleeding rate) following complications of ablation procedures. Re-infusing activated clotting factors, activated complement, etc. can obviously be harmful re: coagulopathy.” (hematologist). When PRBCs are available, should… Read more »