[Methods of preoperative and operative prevention of thromboembolic complications of intra-atrial thrombosis].

Methods of preoperative and operative prophylactics of thromboembolic complications in patients with mitral stenosis complicated by intraatrial thrombosis are described. In a group of patients given anticoagulants during a month as preoperative preparation there was a six times decreased amount of thromboembolic complications in the nearest postoperative period. The anticoagulant treatment is thought to be effective when applied continuously (no less than 3-4 weeks); no complications due to anticoagulant therapy were noted.