期刊
NETHERLANDS HEART JOURNAL
卷 29, 期 5, 页码 255-261出版社
BOHN STAFLEU VAN LOGHUM BV
DOI: 10.1007/s12471-020-01528-5
关键词
Acute atrial fibrillation; Spontaneous conversion; Determinants; Treatment; Cardioversion; Wait-and-see approach
The study found that early spontaneous conversion of acute atrial fibrillation occurs in almost one-sixth of admitted patients during a short initial observation in the emergency department. Patients with first-onset, short-duration AF episodes, lower BMI, and normal left atrial size are more likely to experience spontaneous conversion.
Background The current standard of care for acute atrial fibrillation (AF) focuses primarily on immediate restoration of sinus rhythm by cardioversion, although AF often terminates spontaneously. Objective To identify determinants of early spontaneous conversion (SCV) in patients presenting at the emergency department (ED) because of AF. Methods An observational study was performed of patients who visited the ED with documented AF between July 2014 and December 2016. The clinical characteristics and demographics of patients with and without SCV were compared. Results We enrolled 943 patients (age 69 +/- 12 years, 47% female). SCV occurred within 3 h of presentation in 158 patients (16.8%). Logistic regression analysis showed that duration of AF <24 h [odds ratio (OR) 7.7, 95% confidence interval (CI) 3.5-17.2, p < 0.001], left atrial volume index <42 ml/m(2) (OR 1.8, 95% CI 1.2-2.8, p = 0.010), symptoms of near-collapse at presentation (OR 2.4, 95% CI 1.2-5.1, p = 0.018), a lower body mass index (BMI) (OR 0.9, 95% CI 0.91-0.99, p = 0.028), a longer QTc time during AF (OR 1.01, 95% CI 1.0-1.02, p = 0.002) and first-detected AF (OR 2.5, 95% CI 1.6-3.9, p < 0.001) were independent determinants of early SCV. Conclusion Early spontaneous conversion of acute AF occurs in almost one-sixth of admitted patients during a short initial observation in the ED. Spontaneous conversion is most likely to occur in patients with first-onset, short-duration AF episodes, lower BMI, and normal left atrial size.
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