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European Heart Journal 1989 10(Supplement H):10-12; doi:10.1093/eurheartj/10.suppl_H.10
Copyright © 1989 by the European Society of Cardiology.
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© 1989 The European Society of Cardiology

Predictors of perioperative mortality, morbidity and late quality of life in coronary bypass surgery

H. A. Huysmans and E. van Ark

Dept. of Cardiothoracic Surgery Academisch Ziekenhuis, Leiden, The Netherlands

Address for correspondence: Prof. Dr H. A. Huysmans, Department of Cardiothoracic Surgery, Academisch Ziekenhuis Leiden, Rijnsburgerweg 10, 2333 AA Leiden, The Netherlands

Between January 1, 1977 and January 1, 1988, 220 patients over 70 years of age underwent coronary artery bypass surgery (CABG). Patients undergoing combined procedures, e.g. CABG and valve surgery, were not included. 39% of the patients were emergencies or urgent cases. Hospital mortality (<30 days after surgery or in hospital) was 7·7%. Mean hospital stay was 13·9 days. Postoperative morbidity consisted mainly of infections (n = 51), peri-operative infarction (n = 35), bleeding (n = 13), and renal failure (n= 13)

72% of the patients were in NYHA functional class I at the time of follow-up (mean 3·66 years post-operatively). Many factors were analysed as possible indicators for mortality, morbidity and postoperative functional class.

Mortality was only related to the presence of pre-operative hypertension (P = 0·038), previous infarction (P= 0·056) and severity of coronary disease (P = 0·0458). Morbidity was weakly related to emergency procedures, previous infarction and severity of coronary artery disease (P<0·05). For postoperative functional class, no specific predictors were found.

Key Words: Coronary artery bypass surgery • risk factors • aged patients


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