Incidence of Atrial Fibrillation after Coronary Artery Bypass Graft Surgery and Its Risk Factors in Shiraz, Iran during 2017-18
Atrial fibrillation is one of the most common disorientations after coronary artery bypass graft surgery and can affect the chance of survival in the first year after surgery. The present study aimed to determine the incidence of atrial fibrillation after coronary artery bypass graft surgery and its risk factors.
This cross-sectional study was performed on 854 patients undergoing coronary artery bypass graft in hospitals affiliated to Shiraz University of Medical Sciences. The required data were collected using the electrocardiogram, angiography, and demographic characteristic form. Finally, the collected data were analyzed in SPSS software (version 22).
According to findings, 46% of the patients suffered from a disorder in three coronary arteries. The most common structural disorders in patients were mitral regurgitation (14.9%) and left atrium enlargement and hypertrophy (10.5%). The most common underlying conditions in the participants were hypertension, hyperlipidemia, and diabetes which were observed in 74.4%, 56.2%, and 31.8% of them, respectively. Moreover, the incidence rate of atrial fibrillation in the participants was 18.9%. Furthermore, atrial fibrillation after coronary artery bypass graft surgery had a significant relationship with left ventricular size and its hypertrophy, age, and duration of smoking (P<0.001)
Since atrial fibrillation was observed in about one-fifth of the subjects and smoking is a moderating factor in the incidence of this disease, smoking cessation is recommended. In addition, healthcare providers can consider the size of the left atrium and its hypertrophy during care and treatment.
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