Dexmedetomidine vs Midazolam in Coronary Artery By-pass Surgery

A Comparative Evaluation of Dexmedetomidine and Midazolam ınfusions With Respect to Postoperative Delirium in Patients Undergoing Coronary Artery Bypass Grafting

The aim is to compare the incidence of postoperative delirium following coronary artery bypass grafting (CABG) between patients receiving dexmedetomidine and those receiving midazolam infusions.

Patients will be allocated into two groups. Those receiving intraoperative dexmedetomidine infusion will constitute Group D (n = 30), while those receiving intraoperative midazolam infusion will constitute Group M (n = 30). Demographic data, including age, sex, and body mass index, will be recorded.

Intraoperative heart rate, mean arterial pressure, peripheral oxygen saturation (SpO₂), bispectral index (BIS), and cerebral oxygenation (RSO₂) values will be documented at predetermined intervals. Changes in partial carbondioxide pressure (pCO₂) levels will also be recorded. Surgical duration, cardiopulmonary bypass time, recovery time, length of intensive care unit stay, and the presence of delirium as assessed by the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) will be documented.

Inclusion Criteria:

• Adult patients scheduled for elective coronary artery bypass graft surgery.

Exclusion Criteria:

• Patients with renal disorders,
• Patients with hepatic disorders,
• Patients with neuropsychiatric disorders,
• Patients whom informed consent could not be obtained
• Patients who declined to participate in the study.