Observational studySurgery today2024
The aortic knob index as a novel predictor of new-onset atrial fibrillation after off-pump coronary artery bypass grafting.
Observational study in Surgery today, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Risk factors analysis and nomogram model construction for postoperative atrial fibrillation after off-pump coronary artery bypass grafting.Pakistan journal of medical sciences · 2025Article
- Reply to the letter to the editor on "The aortic knob index as a novel predictor of new-onset atrial fibrillation after off-pump coronary artery bypass grafting".Surgery today · 2024Article
Corrections and comments
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Authors and funding
2 authors.
Funding
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Abstract
purposeTo validate the predictive value of the aortic knob index for identifying new-onset postoperative atrial fibrillation (POAF) after off-pump coronary artery bypass grafting (OPCAB).
methodsAmong 156 patients who underwent isolated OPCAB, 138 consecutive patients without a history of atrial fibrillation were enrolled in this retrospective observational cohort study. The patients were divided into two groups based on the development of POAF. We compared the baseline clinical characteristics; preoperative radiographic characteristics of the aorta, including aortic knob measurements; and perioperative data, between the groups. Logistic regression analysis was performed to identify the predictors of new-onset POAF.
resultsNew-onset POAF developed in 35 (25.4%) patients. Multivariate logistic regression analysis revealed that the aortic knob index was an independent predictor of POAF and yielded that the risk of POAF increased by 1.85 times when the aortic knob index increased by 0.1 (odds ratio, 1.853; confidence interval, 1.326-2.588; P < 0.001). Receiver operating characteristic analysis revealed that an aortic knob index of 1.364 constituted a cutoff value for new-onset POAF with 80.0% sensitivity and 65.0% specificity.
conclusionsThe aortic knob index on preoperative chest radiography was a significant and independent predictor of new-onset POAF following OPCAB.
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