Why the study?
Does the presence of acquired thrombotic risk factors increase the risk of venous thrombosis in individuals with a history of superficial vein thrombosis?
Population
Individuals from the Multiple Environmental and Genetic Assessment of risk factors for venous thrombosis study
Comparison
History of superficial vein thrombosis combined… vs History of superficial vein thrombosis alone
Design
Case-control
Authors
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SVT plus acquired risk factors signals markedly higher venous thrombosis risk; hypothesis-generating and should not yet change practice.
Does the presence of acquired thrombotic risk factors increase the risk of venous thrombosis in individuals with a history of superficial vein thrombosis?
The risk of venous thrombosis is markedly amplified when a history of superficial vein thrombosis is combined with acquired thrombotic risk factors such as surgery, hospitalization, or oral contraceptive use.
Roach et al. (2013) studied this question.
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