title: Preoperative Hemoglobin A1c and the Occurrence of Atrial Fibrillation Following On-pump Coronary Artery Bypass Surgery in Type-2 Diabetic Patients.
abstract: We investigated the association of the preoperative hemoglobin A1c (HbA1c) with occurrence of postoperative atrial fibrillation (POAF) in type-2 diabetic patients who underwent isolated coronary artery bypass grafting.
  
  
  
  We prospectively studied 708 type-2 diabetes patients [433 men ([61.2%)], candidate for isolated coronary artery bypass grafting. Biochemistry profile was measured on the day of operation. All patients were telemonitored for 72 hours after operation for the occurrence of atrial fibrillation. The role of HbA1c as a predictor for the occurrence of atrial fibrillation was then evaluated.
  
  
  
  A total of 109 (15.3%) patients developed POAF. Patients in the atrial fibrillation group tended to be older, with prolonged longer diabetes, and have renal failure, chronic obstructive pulmonary disease, and hypertension. In the univariable and multivariable regression model, HbA1c was not a predictor for POAF.
  
  
  
  Serum level of HbA1c could not be used as a predictor for the development of POAF.
authors.affiliation: From the *Tehran Heart Center, Tehran University of Medical Sciences, Iran; †Department of Cardiology, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; and ‡Department of Community Medicine, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Shahin
authors.initials: S
authors.lastname: Abbaszadeh
authors.forename: Akbar
authors.initials: A
authors.lastname: Shafiee
authors.forename: Payvand
authors.initials: P
authors.lastname: Bina
authors.forename: Arash
authors.initials: A
authors.lastname: Jalali
authors.forename: Saeed
authors.initials: S
authors.lastname: Sadeghian
authors.forename: Abbasali
authors.initials: A
authors.lastname: Karimi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001281:Atrial Fibrillation / Q000097:blood* / Q000453:epidemiology / Q000209:etiology; D015415:Biomarkers / Q000097:blood; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D003324:Coronary Artery Disease / Q000150:complications / Q000601:surgery*; D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006801:Humans; D015994:Incidence; D007492:Iran / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000097:blood* / Q000453:epidemiology / Q000209:etiology; D011237:Predictive Value of Tests; D057234:Preoperative Period; D011446:Prospective Studies; D012307:Risk Factors; D015996:Survival Rate / Q000639:trends
chemical_list: D015415:Biomarkers; D006442:Glycated Hemoglobin; C517652:hemoglobin A1c protein, human