摘要
观察了17例二尖瓣替换术病人,其中8例保留后叶及瓣下结构为观察组;9例常规方法手术为对照组。术后二维超声心动图测定左室缩短分数、射血分数及左室后壁底部、中部和心尖部缩短分数和运动速率,两组间无统计学差异。结果提示对风心病二尖瓣狭窄为主的病人,因慢性纤维瘢痕累及后叶和瓣下结构,换瓣时切除后叶及瓣下结构对左室后壁收缩功能无明确影响。
Mechanical mitral valve replacement was performed on 17 patients with preservation of the posterior leaflet and its subvalvular structures in 8 and without in 9 (control group). Postoperative left ventricular functions were studied by 2-D echocardiogram in both groups and were compared. There was no significant difference in EF and FS of left ventricle, and FS and Q-d time at the base, middle part and apex of the posterior wall of left ventricle. The clinical findings indicate little ventricular functional impairment after MVR in the control group of patients with chronic rheumatic MS resulting in scar formation involving the leaflet and subvalvular structures.
出处
《中华胸心血管外科杂志》
CSCD
北大核心
1994年第3期196-198,共3页
Chinese Journal of Thoracic and Cardiovascular Surgery
关键词
二尖瓣
置换术
瓣下结构
心室功能
Mitral valve replacement
Preservation of posterior leaflet
Left ventricular function