Postoperative atrial fibrillation (AF) is the most common complication of c
ardiac valvular surgery performed through a traditional midline sternotomy
(TMS).(1-3) The minimally invasive procedure (MIP) for cardiac surgery is a
n innovative operative approach performed through a smaller incision that o
ffers the potential advantages of less pain, reduced morbidity, and shorter
hospital stays.(4-9) Because of the apparent differences between the MIP a
nd the TMS techniques of cardiac valvular surgery, our objective was to com
pare the prevalence of postoperative AF between the 2 procedures.