Hayashi S, Kawaue Y
Department of Cardiovascular Surgery, Hiroshima General Hospital, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1994 Nov;42(11):2032-6.
Left atrial (LA) maze operation was performed on atrial fibrillation (af) associated with mitral valvular disease. LA maze operation consists of only left atrial side incision out of modified maze operation. We think that af associated with mitral valvular disease is brought mainly by volume- and pressure-overload to left atrium. We applied LA maze operation in 4 cases, having 2-10 years af history. Combined mitral valvular disease were 1 mitral stenosis, 1 mitral regurgitation, and 2 mitral stenoregurgitation. 2 cases had a history of cerebral thrombosis. Postoperatively, all of these cases returned to sinus rhythm, showed shortening of left atrial diameter, indicated "a" wave. Compared with simple mitral valvular operation, LA maze operation took little longer extracorporeal circulatory time and aortic crossclamping time, but similar operating time. This study suggest that LA maze operation may become effective and simple maneuver on af associated with mitral valvular disease.
对合并二尖瓣疾病的心房颤动（房颤）患者实施了左心房（LA）迷宫手术。LA迷宫手术仅为改良迷宫手术中的左心房侧切口。我们认为，合并二尖瓣疾病的房颤主要是由左心房的容量和压力超负荷引起的。我们对4例有2至10年房颤病史的患者实施了LA迷宫手术。合并的二尖瓣疾病包括1例二尖瓣狭窄、1例二尖瓣反流和2例二尖瓣狭窄并反流。2例有脑血栓病史。术后，所有这些病例均恢复窦性心律，左心房直径缩短，出现“a”波。与单纯二尖瓣手术相比，LA迷宫手术的体外循环时间和主动脉阻断时间稍长，但手术时间相似。本研究表明，LA迷宫手术可能成为治疗合并二尖瓣疾病房颤的有效且简单的术式。
