Clinical Trial

Transcranial Doppler as a Predictor of Postoperative Cognitive Dysfunction Following Cardiopulmonary Bypass

Recruiting
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Record status
This record was last updated February 17, 2026 (before its estimated March 31, 2026 completion). Its status may not reflect the trial's current state.
Summary
Neurological dysfunction either transient or permanent is a major cause of morbidity and mortality after cardiopulmonary bypass, and cognitive dysfunction is more frequent in cardiac surgery than in non-cardiac procedures. Variations in cerebral blood flow and oxygen extraction are considered key contributing factors. Although pulsatile flow during bypass has shown benefits for renal function and recovery, its effects on postoperative neurological dysfunction and delirium remain unclear due to limited research. This study aims to evaluate the impact of pulsatile versus non-pulsatile cardiopulmonary bypass flow on POCD in adult CABG patients by measuring middle cerebral artery (MCA) flow using transcranial Doppler.
Protocol Amendment History 1 amendment
This ClinicalTrials.gov record has been amended once since 2025-05-30.
Trial Details
NCT Number NCT07000461
Lead Sponsor Bakirkoy Dr. Sadi Konuk Research and Training Hospital
Conditions Postoperative Cognitive Dysfunction, Delirium, Postoperative
Enrollment 106 participants
Start Date 2025-04-17
Primary Completion 2026-03-31 (estimated)
Study Completion 2026-04-30 (estimated)
Updated on ClinicalTrials.gov 2026-02-17