About this trial
The aim of this study is to determine the effect of pregabalin versus dexmedetomidine on the treatment and lasting duration of delirium in fast tracking elderly patients after Coronary Artery Bypass Grafting.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
CABG patients ≥ 65 years of age both genders American Society of Anesthesiologists (ASA) physical status classification II or III planned for fast track developed postoperative delirium (POD).
Disqualifiers
Patients who had history of psychiatric diseases; inability to communicate;
previous history of POD; preoperative sick sinus syndrome, allergy/sensitivity to pregabalin or dexmedetomidine, severe bradycardia (heart rate <50 beat per minute), second-degree or above atrioventricular block without pacemaker; severe hepatic or renal insufficiency.
Previous cardiac or thoracic surgery, known diagnosis of depression or other major psychiatric diseases, cognitive impairment or inability to cooperate with the study, renal insufficiency, and history of substance abuse.
Trial design
Parallel
Treatments tested in this trial
Pregabalin
DrugPatients will receive pregabalin capsules (75 mg) every 12 h for 24 hours by nasogastric tube.
Dexmedetomidine
DrugPatients will receive a bolus dose of 0.4 μg/kg dexmedetomidine (over a period of 10 to 20 min)
Treatment groups
Trial outcomes
Primary outcomes
Percent of delirium treatment
Assessment of delirium will be performed preoperatively and postoperatively at 12-h intervals or as needed according to the patient's condition using the confusion assessment method (CAM)
Secondary outcomes
Level of sedation
Sedation level will be assessed by using the Ramsey sedation scale.
Incidence of weaning from mechanical ventilation
percent of patients who weaned from mechanical ventilation
Length of hospital stay
Sponsors and contacts
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