Risk Assessment in Patients Undergoing Carotid Endarterectomy
1993
Factors that contribute to the outcome of carotid endarterectomy include appropriate patient selection, preoperative medical optimization, meticulous operative technique and postoperative management. This study was designed to evaluate associated medical and operative risk factors with surgical outcomes for 9795 consecutive carotid endarterectomies performed by members of a voluntary regional vascular society. All data were reviewed and subject to a variety of statistical analyses in a blinded retrospective fashion. Factors including sex, increased age (>70 years), cigarette smoking, chronic pulmonary disease and diabetes did not contribute independently to either increased operative neurologic morbidity or mortality rates. Cardiac disease (P < 0.0001) and chronic renal failure (P < 0.001) correlated independently with increased operative mortality, while hypertension (P< 0.05), cardiac disease (P< 0.01), renal failure (P< 0.0001), emergency surgery (P< 0.0001) and advanced neurologic symptoms at the time...
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