Surgical Treatment of Concomitant Atrial Fibrillation: Focus onto Atrial Contractility

Figure 3

Biatrial contractility coexistence. At 3 months follow up, only in 84% of patients with an A wave both atria efficaciously contracted (Mc Nemar Kappa coefficient equal to 0.68), while 2 years after the intervention the percentage of bilateral “kick” coexistence reached 98% (Mc Nemar Kappa coefficient 0.87).