This book highlights how newer anti-arrhythmic drugs like Amiodarone and Dronedarone used in the peri-operative period before elective valve replacement surgery restores sinus rhythm or achieves adequate rate control in patients with atrial fibrillation. Dr. Sandeep Kumar Kar, Dr. Chaitali Sen & Er. Diana Ghosh(Kar) have explained the intricacies of anti-arrhythmic drugs and their role in restoring sinus rhythm in patients with valvular heart disease with atrial fibrillation posted for elective valve replacement surgery.