Clinical and echocardiographic predictors of new‐onset atrial fibrillation in patients admitted with blunt trauma
Echocardiography, 2018•Wiley Online Library
Background Atrial fibrillation (AF) is a common arrhythmia after trauma or burn injury;
however, its predisposing factors are not well known. Moreover, little is known about its
effect on mortality and other short‐term clinical outcomes. Objectives This study is aimed at
identifying risk factors for new‐onset AF in patients admitted with blunt trauma or burn
injuries at a Level 1 academic trauma center, and to determine its effects on the short‐term
clinical outcomes. Methods This case–control study compared patients with new‐onset AF …
however, its predisposing factors are not well known. Moreover, little is known about its
effect on mortality and other short‐term clinical outcomes. Objectives This study is aimed at
identifying risk factors for new‐onset AF in patients admitted with blunt trauma or burn
injuries at a Level 1 academic trauma center, and to determine its effects on the short‐term
clinical outcomes. Methods This case–control study compared patients with new‐onset AF …
Background
Atrial fibrillation (AF) is a common arrhythmia after trauma or burn injury; however, its predisposing factors are not well known. Moreover, little is known about its effect on mortality and other short‐term clinical outcomes.
Objectives
This study is aimed at identifying risk factors for new‐onset AF in patients admitted with blunt trauma or burn injuries at a Level 1 academic trauma center, and to determine its effects on the short‐term clinical outcomes.
Methods
This case–control study compared patients with new‐onset AF with a cohort of patients without AF during the hospital stay after trauma or burn injury. Patients with prior AF or lack of transthoracic echocardiogram were excluded. Demographic, clinical factors including injury severity score and echocardiographic parameters were compared in both cohorts. Risks of short‐term clinical outcomes, namely persistent AF, new stroke, myocardial infarction, or death, were compared.
Results
Older age, sepsis, CHADS2‐VASC score >1, larger left atrium (LA) size, left ventricular hypertrophy (LVH), and left ventricular diastolic dysfunction imposed a significant risk for new‐onset AF on univariate analysis. On multivariate, independent predictors of new‐onset AF were LA dilation and LVH. LA enlargement increased odds of new‐onset AF by 23‐fold (OR 23; CI: 5.7–92, P < 0.0001) and the presence of LVH increased the odds of new‐onset AF more than 20‐fold (OR 20.8; CI: 5–87, P < 0.0001).
Conclusions
Dilated LA and LVH are independent predictors of new‐onset AF in the patients with blunt trauma or burn. New‐onset AF did not confer increased risk for in‐hospital mortality.
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