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Source: Blood Clots  Jun 06, 2020  4 months ago
Blood Clots: Study Recommends All Hospitalized COVID-19 Patients To Undergo A Thromboelastography (TEG) Test To Identify Undetected Blood Clots
Blood Clots: Study Recommends All Hospitalized COVID-19 Patients To Undergo A Thromboelastography (TEG) Test To Identify Undetected Blood Clots
Source: Blood Clots  Jun 06, 2020  4 months ago
Blood Clots: Medical researchers from Baylor College of Medicine are recommending that all hospitalized COVID-19 patients especially those admitted to the ICU to undergo a thromboelastography (TEG) to test for the risk of forming blood clots. 


 
The researchers advocated this protocol after after they found that more than half of the patients tested under these same conditions developed clinically significant blood clots that went undetected using routine screenings.
 
Dr Todd Rosengart, Chair and Professor of the Michael E. DeBakey Department of Surgery at Baylor and senior author of the research told Thailand Medical News, "As the surgical critical care team at Baylor St. Luke's Medical Center was discussing their work in the ICU a few weeks ago, I was amazed to hear them express that one of their greatest challenges was that the central intravenous and arterial lines and the dialysis catheters kept unexpectedly clotting in COVID-19 patients in the ICU.I had never seen or heard anything like this in my 30 years as a surgeon, even in our sickest patients."
 
Dr Rosengart and his research colleagues was thus motivated to look at what types of tests could be performed to identify these otherwise undetected blood clots.
 
The team monitored 21 patients with confirmed COVID-19 infection admitted to the Baylor St. Luke's Medical Center ICU between March 15 and April 9. They found that the standard clotting profile or screening of the patients was fairly normal. They were then moved to the next level of more specific clotting tests, which included analyzing a patient's fibrinogen and D dimer levels.
 
Typically, fibrinogen is the protein that makes up the clot and D dimer levels are used to indicate the rate at which a patient's clots are being broken down, which would usually suggest that the body is "chewing up" all of the clotting factors.
 
The medical researchers found for the COVID-19 patients in the ICU, the levels of fibrinogen were more than three times the normal range, indicating that the body was churning out this protein. Looking at these two results together, there was no clear indication that these patients were at increased risk for forming blood clots.
 
The researchers decided to look to a third tier of tests that are not a regularly used process in most ICU patients, the thromboelastography test. This test looks at how quickly a clot forms, its strength and stability. It is used mostly for open heart surgery patients who often have abnormal clot function and also is commonly used for trauma patients.
 
The approach showed the researchers two things: the patients who they found were clotting their central intravenous and arterial lines and dialysis catheters had abnormally high clotting function compared to the patients who did not have clotting issues, and the clot breakdown function was significantly higher in the patients who were clotting less than others.
 
Of the 21 patients studied, 13 of them, or 62%, developed 46 blood clots that could only be detected through the thromboelastography (TEG) test.
 
The resea rchers recommend administering additional blood thinners for patients who are at a higher risk of blood clots as indicated by the TEG test.
 
The research findings were published in the journal of JAMA Network Open. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2766786?resultClick=3
 
Dr Rosengart added, "The thromboelastography (TEG ) test should be performed on all COVID-19 ICU patients immediately to find those who are at a higher risk of clotting. At the point where physicians discover that their central line and catheter is clotting, the horse is out of the barn."
 
The medical researchers are now looking at whether these undetected blood clots could be related to the unexplained deaths they are seeing in COVID-19 patients.
 
As a precaution, whenever possible, all hospitalized patients not just those admitted to the ICU should also have the thromboelastography (TEG) Test done whenever possible.
 
For more on Blood Clots, keep logging to Thailand Medical News.

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Source : Thailand Medical news
Feb 05, 2020  8 months ago