Predictors of atrial dysrhythmias for patients undergoing coronary artery bypass grafting

BACKGROUND: Coronary artery bypass grafting is a commonly used and effective procedure for treating coronary artery disease. Atrial dysrhythmias are common after this surgery, but definitive characteristics that predict the development of such dysrhythmias postoperatively have not been determined. OBJECTIVES: To determine demographic, preoperative, intraoperative, and postoperative factors that are predictive of atrial dysrhythmias that occur after coronary artery bypass grafting. METHODS: A descriptive design was used to study a convenience sample (N = 162) of adult patients undergoing coronary artery bypass grafting. Data were collected via prospective chart review. Patients were grouped according to whether or not atrial dysrhythmias developed after coronary artery bypass grafting. Univariate analyses followed by multivariate analyses were conducted by using forward stepwise logistic regression to determine variables that are predictive of atrial dysrhythmias after coronary artery bypass grafting. RESULTS: Postoperative atrial dysrhythmias developed in 52 patients (32.1%). Univariate predictors of postoperative atrial dysrhythmias included older age (P < .001) and presence of right coronary artery disease (P = .004). Multivariate predictors of postoperative atrial dysrhythmias included age (odds ratio by decade = 1.93, 95% CI = 1.86-2.00, P < .001) and right coronary artery disease (odds ratio = 2.67, 95% CI = 1.14-6.23, P = .02). Hospital stay was significantly longer (P = .003) in patients who had postoperative atrial dysrhythmias than in patients who did have these dysrhythmias. CONCLUSIONS: Age and right coronary artery disease can be used to predict which patients will be at increased risk for atrial dysrhythmias after coronary artery bypass grafting.

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Distribution of Thoracic Aortic Calcifications in Patients Undergoing Coronary Artery Bypass Grafting

Aorta ◽

10.12945/j.aorta.2017.17.035 ◽

2017 ◽

Vol 05 (05) ◽

pp. 132-138 ◽

Cited By ~ 3

Author(s):

Adem Diken ◽

Adnan Yalçınkaya ◽

Sertan Özyalçın

Keyword(s):

Coronary Artery Disease ◽

Coronary Artery ◽

Coronary Artery Bypass Grafting ◽

Coronary Artery Bypass ◽

Classification System ◽

Artery Bypass ◽

Ascending Aorta ◽

Bypass Grafting ◽

Artery Bypass Grafting ◽

Artery Disease

Background: In procedures involving surgical maneuvers such as cannulation, clamping, or proximal anastomosis where aortic manipulation is inevitable, a preliminary assessment of atherosclerotic plaques bears clinical significance. In the present study, our aim was to evaluate the frequency and distribution of aortic calcifications in patients undergoing coronary artery bypass grafting (CABG) surgery to propose a morphological classification system. Methods: A total of 443 consecutive patients with coronary artery disease were included in this study. Preoperative non-contrast enhanced computed tomography images, in-hospital follow-up data, and patient characteristics were retrospectively evaluated. Results: Whereas 33% of patients had no calcifications at any site in the aorta, 7.9%, 75.4%, and 16.7% had calcifications in the ascending aorta, aortic arch, and descending aorta, respectively. Focal small calcifications were the most common type of lesions in the ascending aorta (3.9%), whereas 9 patients (1.4%) had porcelain ascending aorta. We defined four types of patients with increasing severity and extent of calcifications. Conclusions: Based on the frequency and distribution of calcifications in the thoracic aorta, we propose a classification system from least to most severe for coronary artery disease patients who are candidates for CABG.

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