Arrhythmias & electrophysiology

Association of comorbidity patterns with outcomes and relation with the ABC pathway effectiveness in European patients with atrial fibrillation

Heart RhythmPublished prospective observational registry

Authors' conclusion

Comorbidities patterns are heterogeneously associated with treatment and prognosis in AF patients. Adherence to the ABC integrated pathway showed similar association with outcomes across all comorbidity patterns.

Study context

Population
European patients with atrial fibrillation (AF)AF patients included (mean age 68.9 ± 11.4 years, 40.2% female)
Participants
9,613 patients
Exposure
Comorbidity patterns compared with the low-morbidity phenotype
Outcome
Composite of:
  • All-cause mortality
  • Major adverse cardiovascular events
Follow-up
2 years
Methodological detailsEuropean-wide, latent class analysis
  • European-wide
  • Latent class analysis

Main finding

As reported in the abstract

Each group vs low morbidityHazard ratio (95% CI)
"heart failure"
2.18(1.74–2.72)
Multisystemic pattern
2.14(1.62–2.82)

Observational data: associations, not effects.

Further findings

OutcomeOR (95% CI)
OAC use"heart failure"vs low morbidityLess used0.69 (0.53–0.90)
OAC useMultisystemic patternvs low morbidityLess used0.36 (0.26–0.50)
OAC useMetabolicvs low morbidityMore used1.41 (1.06–1.86)

Adherence to the ABC pathway and primary outcome across comorbidity patterns

Adherence to the ABC pathway was similarly associated with reduced hazard of the primary outcome across all groups
  • P for interaction = .885

Original publication

Association of comorbidity patterns with outcomes and relation with the ABC pathway effectiveness in European patients with atrial fibrillation. Heart Rhythm. Published 5 March 2025. doi:10.1016/j.hrthm.2025.02.049

Composed by AI from the published abstract and checked against it. How Briefs are made →

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