title: Incidence of postoperative atrial fibrillation in patients undergoing on-pump and off-pump coronary artery bypass grafting.
abstract: OBJECTIVE
  To determine the incidence of postoperative atrial fibrillation in patients undergoing on-pump and off-pump coronary artery bypass grafting.
  
  
  METHODS
  A retrospective study with analysis of 230 medical records between January 2011 and October 2013 was conducted.
  
  
  RESULTS
  Fifty-six (24.3%) out of the 230 patients were female. The average age of patients undergoing on-pump coronary artery bypass grafting was 59.91±8.62 years old, and off-pump was 57.16±9.01 years old (P=0.0213). The average EuroSCORE for the on-pump group was 3.37%±3.08% and for the off-pump group was 3.13%±3% (P=0.5468). Eighteen (13.43%) patients who underwent off-pump coronary artery bypass grafting developed postoperative atrial fibrillation, whereas for the onpump group, 19 (19.79%) developed this arrhythmia, with no significant difference between the groups (P=0.1955).
  
  
  CONCLUSIONS
  Off-pump coronary artery bypass grafting did not reduce the incidence of atrial fibrillation in the postoperative period. Important predictors of risk for the development of this arrhythmia were identified as: patients older than 70 years old and presence of atrial fibrillation in perioperative period in both groups, and non-use of beta-blockers drugs postoperatively in the on-pump group.
authors: Universidade Regional de Blumenau, Blumenau, SC, BR.
authors: Milton Sérgio
authors: MS
authors: Bohatch Júnior
authors: Universidade Regional de Blumenau, Blumenau, SC, BR.
authors: Paula Dayana
authors: PD
authors: Matkovski
authors: Hospital Santa Isabel, Blumenau, SC, BR.
authors: Frederico José
authors: FJ
authors: Di Giovanni
authors: Universidade Regional de Blumenau, Blumenau, SC, BR.
authors: Romero
authors: R
authors: Fenili
authors: Hospital Santa Isabel, Blumenau, SC, BR.
authors: Everton Luz
authors: EL
authors: Varella
authors: Hospital Santa Isabel, Blumenau, SC, BR.
authors: Anderson
authors: A
authors: Dietrich
mesh_terms: D000367:Age Factors; D000368:Aged; D001281:Atrial Fibrillation / Q000453:epidemiology* / Q000209:etiology; D001938:Brazil / Q000453:epidemiology; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D047549:Coronary Artery Bypass, Off-Pump / Q000009:adverse effects; D005260:Female; D006801:Humans; D015994:Incidence; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology* / Q000209:etiology; D011184:Postoperative Period; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome