Thrombotic - Fibrinolytic Balance and ASCVD events

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Thrombotic - Fibrinolytic Balance and ASCVD events

Post by BrianR »

Paywalled paper: ... m=fulltext

Atherothrombotic factors and atherosclerotic cardiovascular events: the multi-ethnic study of atherosclerosis
Andrew P DeFilippis, Patrick J Trainor, George Thanassoulis, Lyndia C Brumback, Wendy S Post, Michael Y Tsai, Sotirios Tsimikas Author European Heart Journal, ehab600, Published: 11 September 2021

I wasn't able to read the paper, but the information in the abstract is interesting and the graphic is very clear.

Traditional atherosclerotic cardiovascular disease (ASCVD) risk factors fail to address the full spectrum of the complex interplay of atherosclerotic and atherothrombotic factors integral to ASCVD events. This study sought to examine the association between atherothrombotic biomarkers and ASCVD events.

Methods and results
The association between atherothrombotic biomarkers and 877 ASCVD events with and without adjustment for traditional risk factors was evaluated via Cox proportional hazards models and factor analysis in 5789 Multi-Ethnic Study of Atherosclerosis participants over a median follow-up of 14.7 years. Factor analysis accounted for multidimensional relationship and shared variance among study biomarkers, which identified two new variables: a thrombotic factor (Factor 1), principally defined by shared variance in fibrinogen, plasmin–antiplasmin complex, factor VIII, D-dimer, and lipoprotein(a), and a fibrinolytic factor (Factor 2), principally defined by shared variance of plasminogen and oxidized phospholipids on plasminogen. In a model including both factors, the thrombotic factor was associated with the higher risk of ASCVD events [hazard ratio (HR) 1.57, 95% confidence interval (CI) 1.45, 1.70], while the fibrinolytic factor was associated with the lower risk of ASCVD events (HR 0.76, 95% CI 0.70, 0.82), with estimated ASCVD free survival highest for low atherothrombotic Factor 1 and high atherothrombotic Factor 2.

Two atherothrombotic factors, one representative of thrombotic propensity and the other representative of fibrinolytic propensity, were significantly and complementarily associated with incident ASCVD events, remained significantly associated with incident ASCVD after controlling for traditional risk factors, and have promise for identifying patients at high ASCVD event risk specifically due to their atherothrombotic profile.
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Re: Thrombotic - Fibrinolytic Balance and ASCVD events

Post by Whatnow »

This reminds me of the alternative theory about cardiovascular disease and atherosclerosis that views plaques not as accumulations of cholesterol, but rather as multiple layers of blood clots (scabs over incompletely healed injuries to the arteries) resulting from either impaired healing and repair of arteries or accelerated rates of damage. Malcolm Kendrick (a physician from Scotland who is a well-known cholesterol/statin skeptic) has recently written a book on this theory entitled "The Clot Thickens". An interesting book.
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