The univariate influence of age (tertiles), gender, baseline NT-pro-BNP levels (quartiles), AF duration (tertiles), left ventricular ejection fraction (categorized as normal vs. depressed, if below 50%), atrial dimensions (tertiles), ventricular diameter (tertiles), NHYA functional class (I and II vs III and IV), use of beta blockers, class Ic antiarrhythmic drugs, amiodarone, digoxin, furosemide, calcium channel blockers as predictors of time to AF recurrence was assessed by survival analysis in patients discharged in sinus rhythm after elective cardioversion. Here, NPPB is linked to atrial fibrillation.