Carotid endarterectomy: survival rates of 227 patients.
From March 1963 to March 1974, 227 patients with carotid stenosis underwent unilateral or bilateral carotid endarterectomy at l'Hôpital de l'Enfant-Jésus in Québec. Survival during the first 7 years after operation was analysed by life-table methods based on full intervals. The observed probability of death in this group was significantly higher than the probability expected in the general population, by 6.8% in the 1st year and 3.9% in the 2nd year. In the next 3 years the differences were much smaller (0.5, 0.9 and 1.4%). The major causes of death were myocardial infarction and stroke. Women fared somewhat better than men after the 1st year of follow-up. Unexpectedly, patients who underwent unilateral endarterectomy had lower survival rates in each of the first 5 years after operation than patients who underwent staged bilateral operations, whether survival was measured from the date of the first or the second operation.
D000328:Adult; D000368:Aged; D001161:Arteriosclerosis / Q000401:mortality / Q000601:surgery*; D002340:Carotid Artery Diseases / Q000401:mortality / Q000601:surgery*; D002561:Cerebrovascular Disorders / Q000401:mortality; D004691:Endarterectomy / Q000401:mortality*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000401:mortality; D011336:Probability; D012737:Sex Factors