Doppler ultrasound recordings of velocities of flow across the mitral and tricuspid valves and in the hepatic veins, and their variation with respiration, were recorded in seven patients with constrictive pericarditis and in six patients with restrictive cardiomyopathy. Deceleration of mitral and tricuspid flow was also evaluated during apnea. Color flow Doppler was performed in order to evaluate mitral and tricuspid regurgitation. Eight healthy adults served as controls. The patients with constrictive pericarditis showed higher peak diastolic velocities of mitral flow, as well as marked increase of velocity of flow at the onset of expiration and decrease at the onset of inspiration. Reciprocal respiratory variation of the velocities were also observed across the tricuspid valve. The patients with restrictive cardiomyopathy showed moderate or severe mitral and tricuspid regurgitation. They also showed shorter deceleration of flow across the mitral and tricuspid valves during apnea. The pattern of flow in the hepatic veins showed reversal during systole with accentuated reversion during inspiration. These results suggest that patient with constrictive pericarditis and restrictive cardiomyopathy can be differentiated by comparing Doppler echocardiographic data, along with changes induced by respiration.

译文

:在7例缩窄性心包炎患者和6例限制性心肌病患者中,记录了通过二尖瓣和三尖瓣以及肝静脉的流速的多普勒超声记录及其随呼吸的变化。在呼吸暂停期间还评估了二尖瓣和三尖瓣血流的减速度。进行彩色多普勒检查以评估二尖瓣和三尖瓣关闭不全。八名健康成年人作为对照。缩窄性心包炎患者的二尖瓣血流舒张峰值速度较高,并且在呼气开始时血流速度明显增加,在吸气开始时血流速度明显降低。在三尖瓣上也观察到速度的相互呼吸变化。限制性心肌病患者表现为中度或重度二尖瓣和三尖瓣关闭不全。他们还显示了在呼吸暂停期间,穿过二尖瓣和三尖瓣的血流的减速更短。肝静脉的血流模式在收缩期出现逆转,在吸气时出现明显的逆转。这些结果表明,可以通过比较多普勒超声心动图数据以及呼吸引起的变化来区分患有收缩性心包炎和限制性心肌病的患者。

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