Relationship between neurological complications, cerebrovascular and cerebral perfusion following off-pump coronary artery bypass grafting

AbstractObjective:To investigate risk factors for neurological complications after off-pump coronary artery bypass grafting (OPCABG).Methods:We reviewed the cases of 813 patients who underwent OPCABG between August 2010 and September 2013.Data from preoperative 320 dynamic volume computed tomography (CT), CT angiography (CTA), CTA perfusion, and cerebrovascular function examinations were assessed. Neural function was assessed before and 7 days after operation, and patients were assigned to either the neurological complications or non-neurological complications group.Results:Neurological complications were observed in 23.4% (190/813) of patients; cerebral infarction in 1.1% (9/813); hypoxic ischemic encephalopathy in 2.3% (19/813); delirium in 1.5% (12/813); postoperative cognitive dysfunction in 12.9% (105/813); and anxiety/depression in 8.2% (67/813). Patients in the neurological complications group were older, were more likely to have a previous history of cerebrovascular disease and diabetes, had more ...