P918Midterm clinical outcomes of two-staged hybrid ablation of persistent and long-standing persistent atrial fibrillation using the epicardial surgical and subsequent catheter ablation. (20th June 2017) - Osmancik, P.; Budera, P.; Herman, D.; Zdarska, J.; Prochazkova, R.; Talavera, D.; Mala, A.; Straka, Z.