对几种非创伤性检测肺动脉压指标的评价

An assessment of non-invasive techniques to predict the mean pulmonary arteral pressure (PAMP)

对30例慢性肺部病变患者进行七种非创伤性检测的主要指标及其与右心微漂浮导管测得的肺动脉平均压(PAMP)的相关性、敏感性、特异性检验。结果表明,没有一个参数能准确地反映PAMP的值。但PaCO_2、PaO_2、X线片示右下肺动脉宽度、超声心动图所示的右心结构的变化、核素心血管造影所示右室射血分数、右室平均通过时间、肺平均通过时间、肺阻抗血流图对判断肺动脉高压有较好的参考价值。其中核素心血管造影的右室平均通过时间与PAMP的相关系数最高达0.726。

30 patients with chronic lung diseases were studied through measured PAMP by 4F right heart microcathater and seven non-invasive techniques, It was shown that none of the non-invasive technigues could predict PAMP accurately by comparing their main parameters, correlatin. sensitivity and specificity, but blood gas, width of right low pulmonary artery on chest film, echocardiography, Radionuclide angiocardiongraphy, impedance rheopneumography had higher correlation with PAMP. The coefficent of correlation between RVMTT in radio-nuclide angiocardiography and PAMP was the higtest (r =0.726)