Community-based study of atrial fibrillation and stroke prevention

S White1, J Feely, D O'Neill

  • 1Dept Medical Gerontology, Trinity Centre for Health Sciences, Adelaide and Meath Hospital, Dublin.

Irish Medical Journal
|April 2, 2004
PubMed

Insights

Many atrial fibrillation patients in Ireland are not receiving recommended stroke prevention treatments like anticoagulation or aspirin. This audit highlights a significant gap in care, representing a missed opportunity to prevent strokes in this vulnerable population.

Area of Science:

  • Cardiology
  • Public Health
  • Pharmacology

Background:

  • Established benefits of anticoagulation and antiplatelet agents for stroke prevention in atrial fibrillation (AF).
  • Limited data exists on stroke prevention strategies in Irish patients with AF.
  • Chronic AF management requires effective stroke risk reduction.

Purpose of the Study:

  • To assess the adequacy of stroke prevention measures, specifically anticoagulation and aspirin use.
  • To evaluate prescribing patterns for stroke prophylaxis in community-dwelling AF patients in Ireland.
  • To identify gaps in the implementation of evidence-based stroke prevention in AF.

Main Methods:

  • Audit of general medical services (GMS) patients diagnosed with atrial fibrillation.
  • Data collection from two general practices in Dublin, Ireland.
  • Analysis of anticoagulation status and aspirin use against established contraindications.

Main Results:

  • 70 patients with AF identified from 2684 GMS patients.
  • 26 patients had contraindications to anticoagulation.
  • 47% of patients indicated for warfarin were not anticoagulated (21/44).
  • Over half of eligible patients not on anticoagulation were also not on aspirin (20/42).

Conclusions:

  • A significant proportion of AF patients eligible for anticoagulation were undertreated.
  • Aspirin use was suboptimal in patients where anticoagulation was contraindicated.
  • There is a substantial unmet need for improved stroke prevention strategies in Irish AF patients.

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