J Heart Valve Dis
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The study aim was to determine the risk of thromboembolic and bleeding complications in patients with mechanical heart valve prostheses who underwent non-cardiac surgery under different regimens of perioperative anticoagulation. Data were analyzed on the basis of surgery type and underlying disease. ⋯ Minor surgical procedures can be performed safely without discontinuing anticoagulation. When major non-cardiac surgery is planned, discontinuing oral anticoagulation and starting perioperative intravenous heparin minimizes bleeding and thromboembolic risks. Thromboembolic complications may occur within one month of surgery, despite adequate oral anticoagulation, though permanent morbidity is low.
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Case Reports
Asymptomatic left ventricular outflow tract obstruction after mitral valve replacement with leaflet preservation.
It has been shown that inappropriate anterior mitral leaflet preservation during mitral valve replacement may cause left ventricular outflow tract (LVOT) obstruction, usually with dismal prognosis. In this report, we describe a patient with chronic asymptomatic LVOT obstruction after mitral valve replacement with leaflet preservation.