Risk Factors and Prognostic Implications of New-Onset Paroxysmal Atrial Fibrillation in Patients Hospitalized with

Baozi Huang1,2, Jianle Li1, Pingping Li1,2

  • 1Department of Neurology and Stroke Center, Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, National Key Clinical Department and Key Discipline of Neurology, Guangzhou, People's Republic of China.

Insights

New-onset paroxysmal atrial fibrillation (PAF) after intracranial hemorrhage (ICH) is linked to older age, larger hematoma volume, and heart failure. This new-onset PAF independently predicts poor functional outcomes.

Area of Science:

  • Neurology
  • Cardiology
  • Internal Medicine

Background:

  • Intracranial hemorrhage (ICH) is a severe neurological event.
  • Paroxysmal atrial fibrillation (PAF) is a common cardiac arrhythmia.
  • The relationship between ICH and new-onset PAF, and its impact on outcomes, requires further investigation.

Purpose of the Study:

  • To determine the prevalence and risk factors of new-onset paroxysmal atrial fibrillation (PAF) in patients hospitalized with intracranial hemorrhage (ICH).
  • To assess whether new-onset PAF influences functional outcomes in ICH patients.

Main Methods:

  • Analysis of a consecutive patient database with ICH from October 2013 to May 2022.
  • Univariate and multivariable regression analyses to identify risk factors for new-onset PAF.
  • Multivariate models to evaluate new-onset PAF as a predictor of functional outcome using the modified Rankin scale.

Main Results:

  • Among 650 ICH patients, 24 developed new-onset PAF.
  • Independent risk factors for new-onset PAF included older age, larger hematoma volume, and heart failure.
  • New-onset PAF was an independent predictor of poor functional outcome (OR, 10.35 [95% CI, 1.08-98.80]; P=0.042).

Conclusions:

  • Older age, larger hematoma volume, and heart failure are independent risk factors for new-onset PAF post-ICH.
  • Elevated N-terminal pro-B-type natriuretic peptide (NT-proBNP) correlates with increased risk.
  • New-onset PAF significantly predicts poor functional outcomes in ICH survivors.
Abstract