eISSN: 1896-9151
ISSN: 1734-1922
Archives of Medical Science
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vol. 13
Clinical research

Scal atrial natriuretic peptide gene polymorphisms and their possible association with postoperative atrial fibrillation – a preliminary report

Janusz Siebert
Łukasz Lewicki
Jolanta Myśliwska
Monika Młotkowska
Jan Rogowski

Arch Med Sci 2017; 13, 3: 568–574
Online publish date: 2016/05/12
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Introduction Atrial fibrillation (AF) is a frequently encountered complication after coronary artery bypass grafting (CABG), but its underlying mechanisms are still unclear. The natriuretic peptides have been reported as markers for predicting the occurrence of postoperative AF. This study evaluates whether the ScaI ANP gene polymorphisms predict the occurrence of postoperative AF.

Material and methods: A prospective study of 203 consecutive patients with coronary artery disease undergoing elective CABG was undertaken for atrial natriuretic peptide (ANP) ScaI gene polymorphism. Several perioperative data were analysed. Postoperative AF was defined as lasting for at least 15 min, confirmed by 12-lead ECG and occurring within 6 postoperative days. The ScaI polymorphism of the ANP gene was determined by polymerase chain reaction (PCR). Size-dependent separation of the PCR products on a polyacrylamide gel was followed by staining with ethidium bromide.

Results: The total frequency of AF was 19.7%. The frequencies of ScaI ANP gene polymorphisms were as follows: A1A1 4.90%, A1A2 59.60% and A2A2 35.46%. In order to assess the hypothesis that the A2 allele is a marker of increased risk of postoperative atrial fibrillation, the odds ratio (OR) was calculated: A2 vs. non-A2, OR = 0.98 (0.23–4.1), p = 0.97, which was not significant. The odds ratios for A2A2 and A1A1 were not significant either: A2A2 vs. non-A2A2, OR = 1.11 (0.54–2.29), p = 0.76, and A1A1 vs. non-A1A1, OR = 1.17 (0.23–5.92), p = 0.84.

Conclusions: ANP genotype did not predispose to the incidence of “new-onset” AF.

coronary artery disease, gene polymorphisms, coronary artery bypass grafting, ScaI ANP, atrial fibrillation

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