摘要
本文采用脉冲多普勒技术对窦性心动过速患者服用心得安前后的二尖瓣口血流速度频谱进行对比观察,结果表明:自性心动过速时因心率增快导致的血波频谱参数的改变可掩盖舒张功能本身的异常,服用心得安减慢心率后仍存在血流频谱参数异常.则提示左室舒张功能异常。
The compared observations of mitral flow velocity spectrum in patientswity sinus tachycardia were performde before and after propranolo-administration by pulsedDoppler technique.The results showed that the significant changes resulting from high heartrate might mask the abnormality of diastolic function itself and the remained abnormal indices after herat rate reduction by propranolol-administration suggested the impaired diaslolicfunction of left ventricle.
关键词
二尖瓣
心动过速
心得安
心脏舒张功能
Doppler pulsed
flow spectrum
mitral valve
sinus tachycardia
Propranolol