Association of Atrial Fibrillation Burden With Cardiovascular Outcomes in New-Onset Atrial Fibrillation Complicating Myocardial Infarction.

• Tác giả: Yuan Fang, Baoxin Liu, Jieyun Liu, Jiachen Luo, Lei Qin, Xiaoming Qin, Wentao Shi, Yaoxin Wang, Yidong Wei, Lili Xiao, Yiqian Yuan, Xingxu Zhang, Yiwei Zhang, Guojun Zhao
• Ngôn ngữ: eng
• Ký hiệu phân loại: 553.453 Tin
• Thông tin xuất bản: England : Journal of the American Heart Association , 2025
• Bộ sưu tập: NCBI
• ID: 743452

Tóm tắt

 BACKGROUND: New-onset atrial fibrillation (NOAF) is a common complication after acute myocardial infarction (AMI) and is associated with poor survival. Atrial fibrillation (AF) burden is used to characterize the severity of AF. However, the association of AF burden with cardiovascular outcomes in NOAF complicating AMI is poorly understood. We aimed to investigate the prognostic impact of AF burden in NOAF complicating AMI. METHODS AND RESULTS: This multicenter retrospective cohort study included patients with AMI without a medical history of AF who developed the first documented AF during hospitalization between January 2014 and January 2022. AF burden was defined as the percentage of time spent in AF during hospitalization. The primary outcome was a composite of cardiovascular death, heart failure hospitalization, reinfarction, or ischemic stroke. A total of 812 patients with AMI and NOAF (mean age, 72.7±10.9 years
  552 men) were included. An AF burden of 15.29% was identified as the cutoff value for prognostic stratification
  663 patients with complete follow-up data were then classified into the low-burden (AF burden <
 15.29%
  n=447) and high-burden (AF burden ≥15.29%
  n=216) groups. During a median of 4.2 years of follow-up, high AF burden was associated with an increased risk of the composite outcomes (hazard ratio [HR], 1.66 [95% CI, 1.30-2.12]
  CONCLUSIONS: A greater burden of AF is associated with a higher risk of cardiovascular outcomes among patients with NOAF complicating AMI.