Valvular & structural heart diseaseCohort study
Admission with heart failure or atrial fibrillation before mitral valve surgery and associated outcomes
- Danish nationwide registries
- multivariable Cox regression
Authors' conclusion
In patients undergoing MVS for MR, first-time admission for AF or HF within 6 months before MVS was associated with increased risk of admission for HF after MVS. Mortality appeared higher in the HF group during the initial 30 days postsurgery.
Study context
- Population
- Patients undergoing first-time mitral valve surgery (MVS) for mitral regurgitation (MR), Danish nationwide registries (2000–2023)
- Exposure
- Atrial fibrillation (AF) group and heart failure (HF) group vs no new AF/HF, based on admissions within 6 months before surgery
Main finding
As reported in the abstract
Adjusted rate of admission for HF · 1-year from discharge
Each group vs no new AF/HFHazard ratio (95% CI)
AF group
1.55(1.19–2.02)
HF group
1.67(1.33–2.11)
Observational data: associations, not effects.
Further findings
Mortality · from the date of MVS
- Higher 30-day risk among patients in the HF group
- No difference between groups beyond 30 days of follow-up
Original publication
Admission with heart failure or atrial fibrillation before mitral valve surgery and associated outcomes. Am Heart J. Published 2 March 2026. doi:10.1016/j.ahj.2026.107397
Summarised from the published abstract; every number is checked against it