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Journal of Research in Medical Sciences، جلد ۲۷، شماره ۲۲، صفحات ۲۰۲۲-۲۷
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عنوان انگلیسی Right ventricular diastolic function predicts clinical atrial fibrillation after coronary artery bypass graft
چکیده انگلیسی مقاله Background: Patients with moderate?severe left ventricular systolic dysfunction undergoing coronary artery bypass graft (CABG) surgery are at high risk of mortality and morbidity. Our aim is to evaluate the right ventricular (RV) diastolic function in these patients, and monitor its effects on postoperation outcomes. Materials and Methods: In a cohort study, patients with moderate?severe left ventricular systolic dysfunction (ejection fraction ?35%) who were candidate for CABG were included. Baseline ransthoracic echocardiography (TTE) was performed, and RV diastolic unction measures were obtained. After CABG, the length of intubation, inotrope dependency, hospital stay in intensive care unit and ward, n?hospital and after discharge mortality, postoperative atrial fibrillation (POAF) were evaluated in all patients. Results: Sixty?seven patients were prospectively included in the study. The mean ± standard deviation age of our patients was 61.4 ± 9.3. here was no difference between grades of RV diastolic function and postoperative outcomes. However, we found significant difference etween grades of RV diastolic function and onset of in hospital, and total POAF (P?value = 0.017). Multivariate analysis demonstrated that preoperative tricuspid Et/E’t (ratio of peak early?diastolic flow rate across the tricuspid valve orifice to peak early?diastolic velocity at the lateral tricuspid annulus), left atrial volume and “high risk” Euroscore II were independent predictors for POAF during hospitalization and total POAF in patients with moderate to severely impaired left ventricular systolic function (P?values were 0.04, 0.003 and 0.001, respectively). Conclusion: We believe that patients with increased tricuspid Et/E’t are high risk for POAF; therefore, any risk score for POAF should include a comprehensive TTE including evaluation of RV diastolic function before surgery.
کلیدواژه‌های انگلیسی مقاله Atrial fibrillation, coronary artery bypass grafting, left ventricular dysfunction, right ventricular function
نویسندگان مقاله | Mehdi Zand


| Roya Sattarzadeh


| Farnoosh Larti


| Pejman Mansouri


| Anahita Tavoosi


نشانی اینترنتی http://jrms.mui.ac.ir/index.php/jrms/article/view/11338
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