Shin H, Maehara T, Kokaji K, Ohkura M
Department of Cardiovascular Surgery, Kawasaki City Hospital, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1993 Jan;41(1):165-8.
A 67-year-old man with mitral regurgitation underwent mitral valvoplasty and annuloplasty successfully. Combined superior transseptal approach was adopted to expose the mitral valve, because the left atrium was small. The exposure of the mitral valve was excellent. But this approach cannot avoid damaging the sinus node artery, so that why the sinus node function was examined electrophysiologically before and after the operation. Sino-atrial conduction time (SACT) and corrected sinus node recovery time (CSRT) were measured as the indices of the sinus node function. Both SNCT and CSRT after the operation was within normal range. As far as this case, combined superior transseptal approach, which gave good exposure of the mitral valve but needed to cut the sinus node artery, did not deteriorate the sinus node function.
一名患有二尖瓣反流的67岁男性成功接受了二尖瓣成形术和瓣环成形术。由于左心房较小，采用联合经房间隔入路暴露二尖瓣。二尖瓣暴露良好。但这种入路无法避免损伤窦房结动脉，因此在手术前后通过电生理检查窦房结功能。测量窦房传导时间（SACT）和校正窦房结恢复时间（CSRT）作为窦房结功能指标。术后SACT和CSRT均在正常范围内。就该病例而言，联合经房间隔入路虽能良好暴露二尖瓣，但需要切断窦房结动脉，却并未使窦房结功能恶化。
