Exploratory Analyses for the Association of Other Variables of Interest with Atrial Fibrillation/Flutter and Bradycardia or Conduction Blocks
bradycardia, atrial fibrillation/flutter, hyperkalemia, intradialytic hypotension
INTRADIALYTIC HYPOTENSION, EVENTS, ATRIAL FIBRILLATION/FLUTTER
Exploratory analyses were performed to evaluate associations of variables of interest including hyperkalemia, intradialytic hypotension, ultrafiltration volume, and echocardiographic measures, with risks of atrial fibrillation/flutter and bradycardia or conduction blocks. Higher baseline left atrial diameter was associated with an increased risk of atrial fibrillation/flutter (RR, 3.02; 95% CI, 1.13 to 8.07), but not with bradycardia or conduction block (RR, 1.64; 95% CI, 0.62 to 4.34). Although hyperkalemia within the prior 7 days (versus none) had the highest effect estimate for risk of bradycardia or conduction block events, this did not reach statistical significance (RR, 2.07; 95% CI, 0.52 to 8.25). Effect estimates for the association of hyperkalemia (defined in several ways) with atrial fibrillation/flutter were also nonsignificant [