Asian Cardiovasc Thorac Ann 2005;13:167-171
© 2005 Asia Publishing EXchange Ltd
Limitation of Venoarterial Bypass. Early Predictor and Optimal Conversion
Yasuhisa Oishi, MD,
Munetaka Masuda, MD,
Ken-ichi Imasaka, MD,
Shigeki Morita, MD,
Hisataka Yasui, MD
Department of Cardiovascular Surgery, Faculty of Medicine, Kyushu University, Fukuoka, Japan
For reprint information contact: Yasuhisa Oishi, MD Tel: 81 92 642 5557 Fax: 81 92 642 5566 Email: yooo{at}heart.med.kyushu-u.ac.jp, Department of Cardiovascular Surgery, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
Conversion from venoarterial bypass to a ventricular assist device may be lifesaving for patients with severe heart failure, but the criteria for conversion have not yet been established. Forty patients who underwent venoarterial bypass for cardiac failure were reviewed. Of these, 18 (45%) could be weaned from venoarterial bypass, and 11 survived for more than 30 days after weaning (survival rate, 27.5%). Liver dysfunction, renal dysfunction, and the need for left-sided cardiac venting were risk factors for mortality. The appearance of patient’s own cardiac pulse wave within 24 hours after the introduction of venoarterial bypass was a good indication for weaning. Delayed appearance of the cardiac pulse wave was considered to be a risk factor for death. According to these indices, conversion from venoarterial bypass to a ventricular assist device should be considered to prevent deterioration in the function of systemic organs.
Copyright © 2005 by the Asia Publishing EXchange Ltd.
