Investigators identified a high risk of deep vein thrombosis and pulmonary embolism in patients presenting myotonic dystrophy type 1 treated in our hospital, 10 times higher than general population matched on age and sex. These venous thromboembolic events were frequently severe and lethal. Investigators suspect that this high risk of venous thromboembolism is due to coagulation abnormalities specific to myotonic dystrophy type 1. The purpose of this study is to determine: 1/ if there is a hypercoagulable state in myotonic dystrophy type 1 by testing patient's coagulation, and 2/ if genes encoding factors involved in coagulation have modified expression resulting in this hypercoagulable state. Understanding the pathophysiology will help preventing venous thromboembolism in these patients. It is the first study to describe this specific issue.
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Results of thromboelastography in the 3 arms of population n°1
Timeframe: 24 months