Associations between relevant cardiovascular pharmacotherapies and incident heart failure in patients with atrial fibrillation: A cohort study in primary care

Research output: Contribution to journalArticle

Abstract

Objective: To study association between relevant cardiovascular pharmacotherapy and incident congestive heart failure (CHF) in patients with atrial fibrillation treated in primary health care. Methods: Study population included all adults (n=7975) aged 45 years and older diagnosed with atrial fibrillation at 75 primary care centers in Sweden between 2001 and 2007. Outcome was defined as a first diagnosis of CHF post-atrial fibrillation diagnosis. Association between CHF and treatment with relevant cardiovascular pharmacotherapies (beta blockers, calcium blockers, digitalis, diuretics, RAS blockers, and statins) was explored using Cox regression analysis with hazard ratios and 95% CIs. Adjustments were made for age, sociodemographic variables, and comorbid conditions (with or without cardiovascular disorders). Results: During a mean of 5.7 years (SD 2.3) of follow-up, totally 1552 patients (19.5%; 803 women and 749 men) had a recorded CHF diagnosis. Thiazides (hazard ratio 0.74, 95% CI 0.65-0.84), vessel-active calcium channel blockers (hazard ratio 0.76, 95% CI 0.67-0.86), and nonselective beta blockers (hazard ratio 0.84, 95% CI 0.72-0.98), with specifically sotalol representing 80% of nonselective beta blockers (hazard ratio 0.81, 95% CI 0.69-0.97), were associated with lower CHF risk in fully adjusted models. Loop diuretics (hazard ratio 1.41, 95% CI 1.25-1.57) were associated with a higher risk. Findings for thiazides and vessel-active channel blockers were consistent in the tested subgroups. Conclusion: In this clinical setting, we found that thiazides, vessel-active calcium channel blockers, and nonselective beta blockers (specifically sotalol) were associated with a lower risk of incident CHF among patients with atrial fibrillation. The findings of the present study need to be confirmed in other settings.

Details

Authors
Organisations
External organisations
  • Karolinska Institutet
  • Uppsala University
  • Karolinska University Hospital
  • Dalarna University
  • Icahn School of Medicine at Mount Sinai
  • Shimane University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Cardiac and Cardiovascular Systems

Keywords

  • Atrial fibrillation, Congestive heart failure, Drug treatment, Sex
Original languageEnglish
Pages (from-to)1929-1935
Number of pages7
JournalJournal of Hypertension
Volume36
Issue number9
Publication statusPublished - 2018
Publication categoryResearch
Peer-reviewedYes