Risk factors for postoperative morbidity
Abstract
Analysis of outcomes after coronary artery bypass grafting has focused on risk factors for operative mortality. Nonfatal perioperative morbidity is far more costly and more common after operation. To identify the risk factors that lead to postoperative morbidity, we evaluated 938 patients undergoing coronary artery bypass grafting at Albany Medical Center Hospital during 1993. Multivariate statistical analysis was performed on preoperative patient variables to identify risk factors for either serious postoperative morbidity or increased hospital length of stay. Variables were considered both individually and in combination. For example, age was considered individually or in combination with other variables, including parameters of blood volume (i.e., age divided by red blood cell volume or Age/RBCVOL). Similar multivariate analysis was performed to identify independent risk factors for hospital mortality. In order of decreasing importance, the following patient variables were significantly associated with increased length of stay by stepwise Cox regression analysis: Age/RBCVOL, history of congestive heart failure, hypertension, femoral-popliteal peripheral vascular disease, chronic obstructive lung disease, and renal dysfunctio...Continue Reading
References
Adult open heart surgery in New York State. An analysis of risk factors and hospital mortality rates
Predictors of perioperative mortality, morbidity and late quality of life in coronary bypass surgery
Citations
Impact of preoperative anemia on outcome in patients undergoing coronary artery bypass graft surgery
Perioperative complications in a paediatric cardiac surgery program with limited systemic resources.
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