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Submitted: 03 May 2016
Revision: 20 Nov 2016
Accepted: 20 Nov 2016
ePublished: 27 Dec 2016
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J Cardiovasc Thorac Res. 2016;8(4): 140-146.
doi: 10.15171/jcvtr.2016.29
PMID: 28210468
PMCID: PMC5304095
  Abstract View: 2019
  PDF Download: 1037

Original Article

Effect of vitamin D deficiency on the development of postoperative atrial fibrillation in coronary artery bypass patients

Safa Gode 1*, Timuçin Aksu 1, Aylin Demirel 1, Murat Sunbul 2, Mehmet Gul 3, Ihsan Bakır 1, Mehmet Yeniterzi 1

1 Department of Cardiovascular Surgery, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey
2 Department of Cardiology, Marmara University School of Medicine, Istanbul, Turkey
3 Department of Cardiology, İstanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey
*Corresponding Author: Email: safagode@yahoo.com

Abstract

Introduction: Various factors may be responsible for the development of postoperative atrial fibrillation (POAF) in coronary artery bypass graft (CABG) patients. In our study, we demonstrated the effect of vitamin D deficiency on the development of POAF.
Methods:
In this prospective case control study, patients undergoing elective, isolated CABG were considered. A total of 15 patients (16.6%) who developed POAF during the first five days after surgery made up the POAF group. Seventy-five patients that had a sinus rhythm in the same period were the non-POAF group. The two groups were compared statistically in terms of laboratory, clinical, echocardiographic, operative, and postoperative parameters.
Results:
All patients were in sinus rhythm at discharge. The baseline characteristics of the study groups were comparable. The POAF group had a lower vitamin D level than the non-POAF group (9.0 ± 5.0 and 15.0 ± 8.4 ng/mL, respectively; P = 0.007). In the POAF group, the patients’ left atrium diameter and incidence of hypertension (HT) were higher than those of the non-POAF group.
Conclusion:
Incidence of POAF was significantly higher in patients with vitamin D deficiency or insufficiency than the patients with vitamin D level in normal range. Therefore vitamin D deficiency or insufficiency may be a predictor of POAF in patients with CABG.

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