Veselka J
IV. Interní klinika VFN, Praha.
Vnitr Lek. 1995 Nov;41(11):787-91.
Pulmonary venous flow can be evaluated by means of pulsed Doppler echocardiography during transthoracic or even better during transoesophageal examination. In the majority a three-peak spectral curve is recorded with the highest positive wave during ventricular systole, a lower positive wave during ventricular diastole and a negative wave during contraction of the left atrium. The author discusses some factors which have an impact on the pulmonary venous flow and which must be taken into account for its correct evaluation. With regard to clinical importance the author emphasizes in particular the change of venous pulmonary flow when the pulmonary pressure in the left ventricle rises. The latter may be used for its estimation. The pulmonary venous flow is a useful parameter also for quantification of significant mitral regurgitation and the differential diagnosis of restrictive cardiomyopathy and constrictive pericarditis. With regard to the simple assessment, rapidity of assessment and its predictive value it is suited for routine use in the majority of echocardiographic laboratories.
经胸壁时，可通过脉冲多普勒超声心动图评估肺静脉血流，经食管检查时评估效果更佳。大多数情况下，记录到的频谱曲线有三个波峰，心室收缩期出现最高正向波，心室舒张期出现较低正向波，左心房收缩期出现负向波。作者讨论了一些影响肺静脉血流的因素，在正确评估时必须予以考虑。关于临床重要性，作者特别强调了左心室肺压升高时肺静脉血流的变化，后者可用于肺压估计。肺静脉血流也是评估严重二尖瓣反流、鉴别限制性心肌病和缩窄性心包炎的有用参数。就简单性、评估速度及其预测价值而言，它适合大多数超声心动图实验室常规使用。
