目的探讨保留瓣下结构对二尖瓣置换术后室壁运动的影响。
Objective To appraise the effects of regional wall motion of left ventricle after mitral valve replacement with or without preservation of subvalvular apparatus.
前言： 目的：探讨保留瓣下结构二尖瓣置换术的护理配合。
Objective: To explore nursing for the patients with mitral valve replacement by chordal preservation.
目的：评价保留二尖瓣全瓣下结构对双瓣替换者术后左心功能的影响。
Objective: To evaluate the effect of preservation of the entire mitral subvalvular apparatus during double valve replacement on left ventricular functions.
方法：回顾性总结65例保留瓣下结构二尖瓣置换术患者的手术护理。
Methods: Retrospective summary was made of nursing of the patients with mitral valve replacement by chordal preservation.
结论二尖瓣置换保留后瓣及瓣下结构有助于术后心功能改善和长期改善心功能。
Conclusion Miral valve replacement with preservation of posterior subvalvular apparatus is beneficial for renewing cardiac function and for a long-term improvement of cardiac function.
目的：比较保留瓣下结构与不保留瓣下结构二尖瓣置换术（MVR）后的左室构型、左室功能的变化。
Objective:To compare the changes on the configuration and the function of left ventricle after two types of MVRs with structure preserved or removed.
结论长期风湿性病变引起的二尖瓣膜和瓣下结构的病理性挛缩是二尖瓣狭窄左心室容量减小的主要原因。
Conclusion the pathological shortening of mitral valve and sub-valvular apparatus caused by long-term rheumatic disease is the main cause of decreased left ventricular volume in mitral stenosis.
当螺丝刀就位后，拆卸图f中的E夹和连接结构部件的销钉，则止回阀阀瓣将在没有张力的情况下开启。
When the screwdriver is in place, remove the E-clip (Figure F) and pin connecting the structural members and the check clapper will open with no tension.
当螺丝刀就位后，拆卸图f中的E夹和连接结构部件的销钉，则止回阀阀瓣将在没有张力的情况下开启。
When the screwdriver is in place, remove the E-clip (Figure F) and pin connecting the structural members and the check clapper will open with no tension.
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