Department of Anesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Department of Cardiovascular and Thoracic Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Ann Card Anaesth. 2020 Jul-Sep;23(3):357-360. doi: 10.4103/aca.ACA_194_18.
Systolic anterior motion (SAM) of the mitral valve is commonly observed in patients with hypertrophic obstructive cardiomyopathy and in few patients after mitral valve repair or aortic valve replacement. It may cause significant hemodynamic instability due to left ventricular outflow tract (LVOT) obstruction and resulting mitral regurgitation. Subaortic septal bulge is considered as a one of the risk factor for the development of SAM as it narrows the LVOT. We report a case of tetralogy of fallot with subaortic septal bulge who developed SAM of the anterior mitral leaflet, intraoperatively, after resection of a subaortic membrane.
二尖瓣收缩期前向运动（SAM）在肥厚型梗阻性心肌病患者中很常见，在少数二尖瓣修复或主动脉瓣置换术后的患者中也可见。由于左心室流出道（LVOT）阻塞和随之而来的二尖瓣反流，它可能导致显著的血流动力学不稳定。主动脉瓣下隔膜膨出被认为是 SAM 发展的一个危险因素，因为它会使 LVOT 变窄。我们报告了一例法洛四联症合并主动脉瓣下隔膜膨出的患者，在切除主动脉瓣下膜后，术中出现了前二尖瓣叶的 SAM。
