Final answer:
Risk factors for AFib recurrence after Cox Maze IV include older age, previous AFib episodes, other heart conditions, inadequate control of risk factors, incomplete surgical ablation, and scar tissue in the heart.
Step-by-step explanation:
The risk factors for atrial fibrillation (AFib) recurrence after Cox Maze IV procedure can include several factors. These include older age, history of previous AFib episodes, presence of other heart conditions such as hypertension or heart failure, and failure to adequately control other risk factors such as high blood pressure or diabetes. Additionally, incomplete surgical ablation during the Cox Maze IV procedure or the presence of scar tissue in the heart can also increase the risk of AFib recurrence.