Association Between Local Cerebral Oxygenation Monitoring and Postoperative Delirium in Carotid Endarterectomy

Capital Medical University

Status

Enrolling

Conditions

Cerebral Oxygen Saturation

Carotid Endarterectomy

Postoperative Delirium

Treatments

Device: local cerebral oxygen saturation

Study type

Observational

Funder types

Other

Identifiers

NCT05198635

20220105

Details and patient eligibility

About

Postoperative delirium (POD) is a common perioperative complication, which can lead to adverse outcomes. Patients undergoing carotid endarterectomy (CEA) were elderly, complicated with vascular risk factors, cognitive dysfunction, some also had a history of stroke, and the circulation fluctuated greatly during the operation, often resulting in hypoperfusion of cerebral tissue and hypoxia. Therefore, they're the high-risk group of POD. Near-infrared Spectroscopy (NIRS) can continuously and noninvasively monitor local cerebral oxygen saturation (SctO2) to identify the mismatch of oxygen supply and demand in brain tissue. However, for CEA patients, the association between intraoperative SctO2 changes and POD remains unclear. This study intends to explore the association between them and determine the SctO2 threshold for predicting POD. We will monitor SctO2 intraoperatively, follow up and collect data postoperatively.

Enrollment

140 estimated patients

Sex

All

Volunteers

No Healthy Volunteers

Inclusion criteria

Scheduled carotid endarterectomy; Signed informed consent.

Exclusion criteria

Severe cognitive impairment(Mini-Mental State Examination, MMSE<18); History of psychotropic drugs; Previous intracranial surgery history; Poor hearing or vision; Language barriers