Washington, Mar 24: Children and siblings of people with venous thrombosis, or blood clots in the veins, may be more than twice as likely to develop the condition than those without a family history, say Dutch researchers.
Venous thrombosis typically begins in leg veins, although the clot may subsequently break off and travel to the lungs.
"Because universal screening is not cost-effective, research efforts are focused on selection criteria that may be used to increase the chance of finding a genetic risk factor," the authors write.