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Nonalcoholic Fatty Liver Disease-Evidence for a Thrombophilic State?
Margaret Spinosa1, Jonathan G Stine2,3
1Department of Medicine, Pennsylvania State University Milton S. Hershey Medical Center, PA 17033, United States.
Insights
Nonalcoholic fatty liver disease (NAFLD) disrupts blood clotting, increasing risks for heart disease and clots. These hemostasis abnormalities contribute to serious thrombotic events, independent of obesity.
Area of Science:
- Hepatology
- Cardiovascular Medicine
- Hematology
Background:
- Nonalcoholic fatty liver disease (NAFLD) is a global health concern, recognized as the primary cause of chronic liver disease.
- NAFLD is associated with significant extrahepatic complications, including elevated risks of cardiovascular disease and venous thromboembolism.
- Hemostatic derangements are present in NAFLD patients, irrespective of the severity of liver disease.
Purpose of the Study:
- To investigate the hemostatic abnormalities in nonalcoholic fatty liver disease.
- To understand the link between NAFLD, hemostasis, and thrombotic events.
- To explore the interplay between obesity, body composition, NAFLD, and prothrombotic states.
Main Methods:
- Review of existing literature on NAFLD and hemostasis.
- Analysis of epidemiological data on thrombotic events in NAFLD.
- Exploration of the role of obesity and body composition in NAFLD-related hemostatic changes.
Main Results:
- NAFLD is characterized by primary, secondary, and tertiary hemostasis abnormalities.
- These hemostatic derangements contribute to increased rates of pulmonary embolism, deep vein thrombosis, and portal vein thrombosis.
- Thrombotic risk in NAFLD appears independent of obesity and traditional risk factors.
Conclusions:
- Hemostatic dysfunction in NAFLD is a significant contributor to thrombotic events.
- Further research is needed to elucidate the complex interactions between obesity, body composition, and NAFLD in promoting a prothrombotic state.
- Understanding these factors is crucial for improving patient outcomes in NAFLD.
Abstract:
Nonalcoholic fatty liver disease is the leading cause of liver disease worldwide. It has expansive extrahepatic morbidity and mortality including increased rates of both cardiovascular disease and venous thromboembolism. Derangements in primary, secondary and tertiary hemostasis are found in nonalcoholic fatty liver disease independent of those ascribed to end-stage liver disease. The abnormalities across all stages of hemostasis explain the increased rates of clinically relevant thrombotic events, including pulmonary embolism, deep vein thrombosis and portal vein thrombosis, which on an epidemiologic basis appears to be independent of obesity and other traditional venous thromboembolic risk factors. However, given the complex interaction between obesity, body composition and nonalcoholic fatty liver disease and the potential for exercise to benefit all three, more research is needed to further define the role of each in contributing to the prohemostatic state of nonalcoholic fatty liver disease in order to improve patient oriented outcomes.
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