LVAD収縮期駆動法の有用性について ―補助流量・左右冠血流量・左室仕事量の実験的検討―

深町 清孝; 中村 祐一郎; 岸崎 邦昭; 麻生 俊英; 戸嶋 良博; 小江 雅弘; 三谷 淳夫; 坂本 真人; 田中 二郎; 徳永 皓一

doi:10.11392/jsao1972.18.571

AN EXPERIMENTAL STUDY OF THE EFFECTS OF LEFT VENTRICULAR ASSIST DEVICE IN MODE OF SYNCHRONOUS SYSTOLIC DRIVING

K. FUKAMACHI, Y. NAKAMURA, K. KISHIZAKI, T. ASOU, Y. TOSHIMA, M. OE, A. MITANI, M. SAKAMOTO, J. TANAKA, K. TOKUNAGA

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K. FUKAMACHI
Dep. of Cardiac Surgery, Kyushu Univ.
Y. NAKAMURA
Dep. of Cardiac Surgery, Kyushu Univ.
K. KISHIZAKI
Dep. of Cardiac Surgery, Kyushu Univ.
T. ASOU
Dep. of Cardiac Surgery, Kyushu Univ.
Y. TOSHIMA
Dep. of Cardiac Surgery, Kyushu Univ.
M. OE
Dep. of Cardiac Surgery, Kyushu Univ.
A. MITANI
Dep. of Cardiac Surgery, Kyushu Univ.
M. SAKAMOTO
Dep. of Cardiac Surgery, Kyushu Univ.
J. TANAKA
Dep. of Cardiac Surgery, Kyushu Univ.
K. TOKUNAGA
Dep. of Cardiac Surgery, Kyushu Univ.

Keywords: Left ventricular assist device (LVAD), driving mode, systolic driving, copulsation, coronary arterial flow

JOURNAL FREE ACCESS

1989 Volume 18 Issue 2 Pages 571-574

DOI https://doi.org/10.11392/jsao1972.18.571

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Abstract

To assess the effects of left ventricular assist device (LVAD) in mode of synchronous systolic driving, left ventricular assistance (from left atrium to the ascending aorta) was performed in both systolic driving mode (SD) and diastolic driving mode (DD) in seven anesthetized dogs. We measured assisted flow, left ventricular stroke work and coronary arterial flow in both driving modes. Assist flow was significantly increased in SD than DD (p<0.05) and stroke work was significantly decreased in SD than DD (p<0.01). Coronary arterial flow was not changed in both driving modes. We concluded that SD was effective in terms of left ventricular unloading.

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