Autopsies have found occlusion and microthrombosis formation in the small vessels of the lungs. We all know that people have just decided to drop dead for one reason or another after looking fine. Could this also be happening in the heart and kidneys? Can we at least band-aid this by anticoagulating somewhere in the course?
75% of the COVID ICU patients I've personally cared for have developed DVT's of some sort during their hospital course and are currently on full anticoagulation. But could we have predicted this was going to occur and have been proactive when it comes to all this micro and macro thrombi we are seeing? By the way, I have reached out to some hematologists I know and trust for their opinions and no one really knows. Even though I started writing this post yesterday, Josh Farkas beat me to the punch today.
Let's look at the data.
The paper I’m covering today was published on March 27th and came out of China. I'm late to the game. It is a retrospective study. They described "sepsis-induced coagulopathy" based on PT, platelets, and SOFA score.
They found that if the the SIC score was greater than or equal to 4 and the patients had received heparin, there was a decrease in their 28 day mortality from 64.2% to 40%. The number needed to treat with all its limitations was just 4.1 If the SIC score wasn't elevated, it really didn't make a difference. The D-dimer also held its own if it was greater than 6. When this is the case, patients who received heparin had a mortality of 32.8% versus 54.8% without it (NNT=5.1). This isn't the best data in the world and has numerous limitations that you can look at yourself to help you better interpret the study, but I know I will personally be formulating some anticoagulation strategies for these patients in the absence of a large clinical trial. Potential benefit has to be greater than the risks, of course.
It is important to note that the dosing utilized in this paper is comparable to our DVT prophylaxis doing. My curiosity ultimately stems from the utility of full dose anticoagulation. Could that hypothetically lead to even fewer deaths? I don't know.
Has anyone seen any data where patients who are chronically anticoagulated have less severe COVID? I'm curious.
A question for someone smarter than me:
Would there be a difference between using heparin, enoxaparin, or moving straight to the DOACs? I would like to limit the exposure of my nurses in titrating heparin drips.
- EJ
Tang N, Bai H, Chen X, Gong J, Li D, Sun Z. Anticoagulant treatment is associated with decreased mortality in severe coronavirus disease 2019 patients with coagulopathy [published online ahead of print, 2020 Mar 27]. J Thromb Haemost. 2020;10.1111/jth.14817. doi:10.1111/jth.14817
Link to Abstract
Link to FREE PDF
Although great care has been taken to ensure that the information in this post is accurate, eddyjoemd, LLC shall not be held responsible or in any way liable for the continued accuracy of the information, or for any errors, omissions or inaccuracies, or for any consequences arising therefrom.
Link to FREE PDF
Although great care has been taken to ensure that the information in this post is accurate, eddyjoemd, LLC shall not be held responsible or in any way liable for the continued accuracy of the information, or for any errors, omissions or inaccuracies, or for any consequences arising therefrom.
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