Preoperative LA reservoir strain was significantly associated with post-operative atrial fibrillation (OR 1.75; 95% CI 0.65-4.69; P≤0001), alongside age, LA size, and LAVI.
Observational (n=127)
Does preoperative left atrial function assessed by 2D echocardiography and speckle tracking predict post-operative atrial fibrillation following isolated CABG?
Preoperative age, left atrial size, and left atrial volume index are significant predictors of post-operative atrial fibrillation in patients undergoing isolated CABG.
Odds Ratio: 1.75 (95% CI 0.65–4.69)
p-value: p=≤0001
Background: One of the most frequent complications following heart surgery is atrial fibrillation (AF). The most popular diagnostic procedure for evaluating atrial function is echocardiography, however it has certain drawbacks. Originally, 2D echocardiography has been used to measure volumes to determine left atrial function. Objective: to examine the relationship between the development of post-operative AF following isolated CABG and preoperative evaluation of LA function using 2D echocardiography and left atrium 2D speckle tracking strain echocardiography. Patients and Methods: A set of 149 consecutive patients enrolled in a prospective observational study, they admitted to cardio-thoracic surgery department for elective isolated coronary artery bypass grafting surgery, during July 2018 to June 2019. 22 patients were excluded from the study due to bad image quality. Results: Readings of speckle tracking data showed significant less LA reservoir strain (OR 1.75, 95% CI: 0.65-4.69, P≤0001), LA conduit strains (OR 0.6, 95% CI: 0.22-1.62, P=0.31) and LA contractile strain (OR 0.65, 95% CI: 0.24-1.77, P=0.40) in POAF (+). Remaining parameters were non-significant. Also, Age (P=0.03), LA diameter (P=0.04), and LAVI (P=0.03) were the only factors that were identified as potential predictors of POAF in multivariate logistic regression analysis. Conclusion: we concluded that, age, LA size and LAVI are significantly associated with the occurrence of POAF in our patients.
Nagi et al. (Tue,) conducted a observational in Post-operative atrial fibrillation (n=127). Preoperative left atrial function parameters (LA reservoir strain, LA size, LAVI) was evaluated on Post-operative atrial fibrillation (POAF) (OR 1.75, 95% CI 0.65-4.69, p=≤0001). Preoperative LA reservoir strain was significantly associated with post-operative atrial fibrillation (OR 1.75; 95% CI 0.65-4.69; P≤0001), alongside age, LA size, and LAVI.