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To explore the association of migraine with perioperative stroke and 30-day hospital readmission, investigators reviewed prospective hospital registry data for all patients who underwent surgery under general anesthesia with mechanical ventilation during a >7-year period and were extubated at either a tertiary medical center or two affiliated community hospitals. The researchers reviewed medical records for all perioperative ischemic strokes. Readmissions were restricted to the tertiary facility and affiliated hospitals.
Among 124,558 surgical cases included, 10,179 (8.2%) patients had ICD-9 codes for migraine, 1278 (12.6%) of these with aura. Perioperative ischemic stroke was a complication of 771 cases (0.6%), of which 46.2% occurred withi…