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Right and left ventricular function in patients with mitral stenosis Yasuhisa Shimazaki 1 , Kenji Onishi 2 , Hajime Hirose 1 , Susumu Nakano 1 , Kei Sakai 1 , Shigeo Sato 1 , Tetsuo Sakakibara 1 , Takeshi Nakatani 1 , Shizuo Morimoto 3 , Jun Arisawa 3 , Yasunaru Kawashima 1 , Katsuhiko Ihara 4 1First Department of Surgery, Osaka University Medical School 2Osaka Prefectural Hospital 3Department of Radiology, Osaka University Medical School 4Kinan General Hospital pp.1333-1338
Published Date 1983/12/15
DOI https://doi.org/10.11477/mf.1404204360
  • Abstract
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Right and left ventricular functions were evaluated by quantitative biplane cineangiocardio-graphy in 17 patients with mitral stenosis. Right ventricular enddiastolic volume index (RVEDVI) ranged from 69 to 130 (99±18) ml/m2(mean±SDM), and right ventricular ejection fraction (RVEF) ranged from 0.33 to 0.69 (0.51±0.08). There was an inverse relationship between the RVEDVI and RVEF (r=-0.52, p<0.05). Left ventricular enddiastolic volume index (LVEDVI) ranged from 65 to 112 (91±12) ml/m2, and left ventricular ejection fraction (LVEF) ranged from 0.32 to 0.60 (0.52±0.08).

Cardiac index ranged from 1.61 to 4.40 (2.56±0.72) 1/min/m2, and correlated well with the RVEF (r=0.78, p<0.001) and with the LVEF (r=0.60, p<0.05).

All patients were divided into two groups. Group 1 contained of 9 patients with a cardiac index of over 2.50 1/min/m2 and group 2 of 8 patients with a cardiac index of less than 2.50. The RVEF averaged 0.55±0.07 in group 1 and 0.47±0.08 in group 2 (p<0.05), and the LVEF averaged 0.56±0.04 in group 1 and 0.49±0.09 in group 2 (p<0.05).

Tricuspid regurgitation was evident in 11 patients. The RVEDVI averaged 108±14 ml/m2 in 11 patiens with TR and 81±13 ml/m2 in those without incompetence (p<0.05). The RVEF averaged 0.49±0.10 in patients with TR and 0.56 ±0.04 in those without regurgitation. There were 7 patients who had had a closed mitral commissurotomy. Cardiac index averaged 2.11±0.43 and 2.88±0.72 1/min/m2 in 7 patients with recurrence and in 10 without a previous surgery, respectively (p<0.05). The RVEF averaged 0.46±0.08 and 0.55±0.07 in patients with a recurrence and in a non-recurrent patients (p<0.05).

These results indicate that the right ventricular enddiastolic volume was increased and ejection fraction was depressed in patients with mitral stenosis and a low cardiac output.


Copyright © 1983, Igaku-Shoin Ltd. All rights reserved.

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