摘要
通过对49例闭塞性肺血管病伴肺动脉高压患者的临床听诊和心音图及其与血液动力学对照分析,发现P_2振幅、S_2分裂时间可估算肺动脉压;TVSM、S_4及S_3能判断右室压力和右心功能状况。
To evaluate the significance of heart sound changes, the results of clinical auscultation and phonocardiography with hemedynamics were compared in forty-nine cases of obliterative pulmonary vascular disease complicated by pulmonary hypertension. The results showed that pulmonary arterial pressure could be predicted by the P_2 amplitude and split time of S_2. TVSM, S_4 and S_3 could be used for estimating right ventricular pressure and right heart function.
In the group of≥50 years of age, the correlatons between P_2 and PAPs, P_2 and PAPd, and S_2 split time and PAPs were significant. Their regression equations were as follows:
PAPS(mmHg)=6.98P_2+12.35(r=0. 69, P<0.05)
PAPS(mmHg)=436S_2+8.3(r=0.65, P<0.05)
In unexplained pulmoary hypertension, the correlation between the P—S_4 interval and PAPS was significant with a regression equation of PAPs (mmHg)=-304.9 (P—S4)]+72.4(r=-0.53, P<0.05).
Noninvasive phonocardiography and auscultation are more reliable and practical methods to diagnose and evaluate obliterative pulmonary vascular disease.
出处
《中国循环杂志》
CSCD
1991年第6期533-535,共3页
Chinese Circulation Journal
关键词
肺血管病
肺动脉高压
心音图
Obliterative pulmonary vascular disease
Pulmonary hypertension
Phonocardiography
