Sequential changes of regional circulation in cerebral infarction.

Sequential changes of regional cerebral circulation and effects of spontaneous recanalization of occluded artery on cerebral circulation were observed in 50 patients with cerebral infarction. 1) Luxury perfusion was predominantly recognized in the recanalized patients within 16 days after onset. 2) Impairment of vasomotor responses was almost the same in the recanalized patients and the occluded patients. 3) CO2 response tended to recover about 3-4 weeks after onset, but disautoregulation to induced hypertension persisted up to 2 months after onset. Some clinical problems are discussed.