Surgical Treatment for Cervical Carotid Artery Stenosis in the Elderly: Importance of Perioperative Management of Ischemic Cardiac Complications

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Ischemic cardiac complication is one of the major perioperative complications of surgical treatment for cervical carotid stenosis, carotid endarterectomy (CEA), and carotid artery stenting (CAS), and may greatly affect surgical outcome, especially in elderly patients aged ≥ 80 years. We retrospectively analyzed the records of 259 patients (34 patients aged ≥ 80 years) treated by CEA and 61 patients (12 patients aged ≥ 80 years) treated by CAS at Aizu Chuo Hospital from January 2000 to September 2010. Preoperative ischemic heart disease screening was performed in all patients. If high risk of coronary atherosclerotic stenosis was detected, treatment for coronary lesion was performed prior to CEA or CAS. There was no preoperative ischemic cardiac complication in both the CEA and CAS groups. Perioperative complications (morbidity + mortality) occurred in 2.9% of patients aged ≥ 80 years and 1.7% of patients aged ≤ 79 years in the CEA group, and 8.3% and 8.1% of patients, respectively, in the CAS group. There was no statistically significant difference by age in either group. CEA could be safely performed with tolerable complication rates even in elderly patients. However, the complication rate in the CAS group was relatively high. New ischemic lesion on diffusion-weighted magnetic resonance imaging, both symptomatic and asymptomatic, tended to occur at a higher rate in the CAS group, especially in the elderly patients. Thorough perioperative management may minimize ischemic cardiac complications even in elderly patients. Efforts must be continued to minimize surgical complications, especially for CAS. Noninvasive medical treatment should also be considered for elderly patients.

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