论文部分内容阅读
16例风心病二尖瓣狭窄病人术中取左室乳头肌和室间隔肌部组织进行光镜、电镜观察。微动脉、肌原纤维、线粒体病变的存在是病人预后的形态学基础。尽管室壁组织与乳头肌组织心肌纤维超微结构改变相似,但间质反应,尤其是微动脉改变,乳头肌明显重于室壁组织。室壁微动脉病变的存在直接影响病人的预后。心肌组织的变化可能是风湿性心肌炎免疫反应的结果,微动脉病变存在与否及其程度影响到心肌形态和功能的转归。术后应用冠状血管扩张剂对病人的恢复会有裨益。
16 cases of rheumatic mitral stenosis patients with left ventricular papillary muscle and ventricular septal muscle tissue microscopy, electron microscopy. The presence of arterioles, myofibrils, and mitochondrial lesions is the morphological basis of the patient’s prognosis. Although the changes of ultrastructure of myocardial fibers in parietal and papillary muscles were similar, the interstitial reaction, especially the changes of arterioles, and papillary muscle were obviously heavier than those in parietal tissues. The presence of ventricular arterioles directly affects the patient’s prognosis. Changes in myocardial tissue may be the result of the immune response to rheumatic myocarditis, the presence or absence of arteriolar lesions and the extent to which they affect the outcome of myocardial morphology and function. Postoperative coronary vasodilator recovery of patients will be helpful.