Inconsistent methodology as a barrier to meaningful research outputs from studies of Atrial Fibrillation after Cardiac Surgery

Atrial fibrillation after cardiac surgery (AFACS) is an important postoperative complication. There is significant research interest in this field but also relevant heterogeneity in reported AFACS definitions and approaches used for its identification. Few data exist on the extent of this variation in clinical studies.We reviewed the literature since 2001 and included manuscripts reporting outcomes of AFACS in adults. We excluded smaller studies and studies where patient did not undergo a sternotomy.