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Right ventricular volume characteristics and function in patients with pulmonary atenosis Yasuhisa Shimazaki 1 , Hidefumi Kishimoto 1 , Shigeo Sato 1 , Tomshikatsu Yagihara 1 , Minoru Ogawa 2 , Hajime Hirose 2 , Shizuo Morimoto 3 , Jun Arisawa 3 , Yasunaru Kawashima 3 1First Department of Surgery Osaka University Medical School 2Departments of Pediatrics Osaka University Medical School 3Departments of Radiology Osaka University Medical School pp.291-295
Published Date 1986/3/15
DOI https://doi.org/10.11477/mf.1404204837
  • Abstract
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Right ventricular volume and function were assessed in 16 patients with pulmonary stenosis, Six (mild PS) had right to left ventricular systolic pressure ratio less than 0. 70, four had that betwe-en 0.70 and 1.0 (moderate PS), and six had that more than 1.0 (Severe PS), respectively. Right ventricular end-diastolic pressure averaged 7±2 mmHg in mild PS, 11±5mmHg in moderate PS (p<0.001 vs. normal value), and 11±2 mmHg in severe PS (p<0.001 vs. normal), respectively. Right ventricular end-diastolic volume index ave-raged 83±17ml/m2 in mild PS, 72±31ml/m2 in moderate PS, and 92±31ml/m2 in severe PS, respectively. Right ventricular ejection fraction averaged 0.60±0.08 in mild PS, 0.55±0.06 in moderate PS, and 0. 42±0.08 in severe (p<0.01 vs. normal), respectively. Compliance of the right ventricle averaged 0.10±0.03mmHg-1 in mild PS, 0.06±0.04mmHg-1 in moderate PS (p<0.01 vs. normal), and 0.04±0.01mmHg-1 in severe PS (p<0.001 vs. normal), respectively. There was a high correlation between compliance of the right ventricle and the right to left ventricular systolic pressure ratio (Y=0.17X-1.19, r=-0.86, p<0.001).

These results demonstrated that right ventricular pump function was depressed significantly in pa-tients with high right ventricular pressure similar to or more than the left ventricular pressure, and right ventricular diastolic function was abnormal in pa-tients with the right ventricular pressure more than one half of the left ventricular pressure.


Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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