Conditions: Heart; Dysfunction Postoperative, Cardiac Surgery
Keywords: Suppress Atrial Fibrillation heart bypass surgery heart valve surgery
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 15
Healthy volunteers: no

Brief summary:
The objective of this study is to show that ranolazine is a safe, viable and potent alternative for post-operative atrial fibrillation suppression in patients undergoing cardiac surgery

Detailed description:
A single center, double blind, prospective, randomized study for patients who are scheduled for elective cardiac surgery (Coronary Artery Bypass Graft \[CABG\], or valve or CABG and valve). All patients who meet criteria will be prospectively enrolled in a randomized fashion. Patients enrolled will be assigned to receive twice daily identical capsules containing either placebo or ranolazine. Study drug will be initiated 2 days before surgery. Patients will receive study drug throughout their hospitalization and be kept on it for a full 2 weeks post operatively. Patients will be seen in 2 weeks and receive a 30 day follow up contact visit.

Arms:
arm 1: Patient will undergo Coronary Artery Bypass Graft (open heart surgery) and will receive, Ranolazine 1000 mg (2-500mg tablets) twice daily. If intolerant to the study drug due to adverse effects,or the patient is started on diltiazem or verapamil post operative then the dose will be reduced to 500 mg (1-500mg tablet) twice daily. arm 2: Patient will undergo Coronary Artery Bypass Graft (open heart surgery) and will receive, Placebo 1000mg mg (2-500mg tablets)twice daily. If intolerant to the study drug due to adverse effects, or the patient is started on diltiazem or verapamil post operative then the dose will be reduced to 500mg (1-500mg tablet) twice daily. arm 3: Patient will undergo heart Valve surgery and will receive, Ranolazine1000mg (2-500 mg tablets) twice a day. If intolerant to the study drug due to adverse effects, or the patient is started on diltiazem or verapamil post operative then the dose will be reduced to 500 mg (1-500mg tablet) twice a day. arm 4: Patient will undergo heart Valve surgery and will receive, Placebo 1000mg (2-500mg tablets) twice a day. If intolerant to the study drug due to adverse effects, or the patient is started on diltiazem or verapamil post operative then the dose will be reduced to 500mg (1-500mg tablet) twice a day.

Interventions: intervention 1: Ranolazine intervention 2: Placebo
Intervention descriptions: intervention 1: Ranolazine 1000mg (2-500mg tablets) twice daily. Starting 2 days prior to surgery, morning of surgery and up to 14 days post operative depending when the breathing tube is removed from the patient post operative. If intolerant to the study drug due to adverse effects or the patient is started on diltiazem or verapamil post operative then the dose will be reduced to 500mg (1-500mg tablet) twice daily intervention 2: Placebo 1000mg (2-500mg tablets) twice daily. Starting 2 days prior to surgery, morning of surgery and up to 14 days post operative depending when the breathing tube is removed from the patient post operative. If intolerant to the study drug due to adverse effects or the patient is started on diltiazem or verapamil post operative then the dose will be reduced to 500mg (1-500mg tablet) twice daily

Protocol document: