• P M Maxson, K L Schultz, K H Berge, C M Lange, D R Schroeder, and T A Rummans.
• Department of Anesthesiology, Mayo Clinic Rochester, MN 55905, USA.
• Mayo Clin. Proc. 1999 May 1; 74 (5): 448-53.

ObjectiveTo determine whether alcohol abuse or dependence is a risk factor for perioperative complications, increased duration of hospital stay, and increased utilization of nursing resources in patients undergoing thoracic and vascular surgical procedures.Material And MethodsWe conducted a prospective study of all adult patients who underwent an elective vascular or thoracic surgical procedure and who received postoperative care in an intensive-care setting. Patients were screened for alcohol abuse or dependence, and actual versus expected durations of stay were evaluated. The patients' medical records were reviewed for preoperative comorbidities and perioperative complications. Fisher's exact test and the rank sum test were used in the analyses.ResultsOf 321 study subjects, 290 were classified as nonalcoholic and 31 as probable alcoholic patients. Patients in the probable alcohol abuse group had a significantly increased rate of alcohol withdrawal (12.9% versus 1.7%; P = 0.006) in comparison with patients in the nonalcoholic group. Patients in the probable alcohol abuse group were readmitted to an intensive-care unit more frequently (19.4% versus 7.9%; P = 0.047) and required sedation more often (32.3% versus 13.5%; P = 0.014) than those in the nonalcoholic group. No significant differences were found between the two study groups in intensive-care unit and hospital durations of stay or in utilization of nursing resources. A dismissal diagnosis of alcoholism was recorded for only one of four patients who had a documented withdrawal episode among those categorized in the probable alcoholic group and for three of five patients with alcohol withdrawal symptoms categorized in the nonalcoholic group.ConclusionExcept for the occurrence of alcohol withdrawal syndrome, study patients classified in the probable alcohol abuse group did not have more medical or surgical perioperative complications than patients in the nonalcoholic group. They did have significantly more intensive-care setting readmissions. Patients with documented alcohol withdrawal episodes frequently were dismissed without a diagnosis of substance abuse or dependence.

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