Transesophageal Doppler echocardiography of pulmonary venous flow: A new marker of mitral regurgitation severity
作者： Allan L. Klein , Timothy P. Obarski , William J. Stewart , Paul N. Casale , Gregory L. Pearce
DOI: 10.1016/0735-1097(91)90609-D
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摘要: Pulmonary venous flow varies with different cardiac conditions. Flow patterns in response to mitral regurgitation have not been well studied, but flows may vary enough differentiate among grades of regurgitation. Accordingly, pulmonary velocities were recorded 50 consecutive patients referred for outpatient (n = 26) or intraoperative (mitral valve repair; n 24) echocardiographic examination Recordings made right and left upper veins pulsed wave Doppler transesophageal echocardiography. Mitral was graded from 1+ 4+ by an independent observer using color mapping. The results catheterization performed 5 weeks earlier 43 the also observer. patterns, presence reversed systolic peak diastolic compared severity indicated each technique. Of 28 mapping, 26 (93%) had flow. sensitivity detecting mapping 93% specificity 100%. 86% 81%, respectively. Discordant observed 9 (24%) 38 patients; vein usually showed blunted In 22 patients, there "normalization" after repair postcardiopulmonary bypass study prebypass regurgitant leak corrected.(ABSTRACT TRUNCATED AT 250 WORDS)
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