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Implementation of antithrombotic management in atrial fibrillation
S J McNulty1, D Hutchinson, K J Hardy
1Department of Medicine, Whiston Hospital, Prescot, Merseyside L35 5DR, UK.
Insights
Clinical audit significantly improved antithrombotic management for atrial fibrillation patients, reducing stroke risk. This highlights the impact of audit and education on patient care and preventing strokes.
Area of Science:
- Cardiology
- Clinical Practice Improvement
- Public Health
Background:
- Atrial fibrillation (AF) management guidelines recommend specific antithrombotic therapies to prevent stroke.
- Adherence to these recommendations in routine clinical practice is crucial for patient outcomes.
- District general hospitals face challenges in implementing and monitoring guideline-based care.
Purpose of the Study:
- To evaluate the adoption of published atrial fibrillation antithrombotic management recommendations into clinical practice.
- To assess the impact of a clinical audit and education program on improving antithrombotic management in AF patients.
- To determine the proportion of AF patients receiving appropriate stroke prophylaxis.
Main Methods:
- A prospective audit of 185 consecutive atrial fibrillation patients to assess current management and identify stroke risk factors.
- Development and application of a risk stratification algorithm for stroke and bleeding.
- Implementation of an educational program followed by a second audit of 185 AF patients six months later.
Main Results:
- 83% of patients were identified as high risk for stroke.
- Initial audit showed correct antithrombotic management in only 48% of patients.
- Follow-up audit demonstrated a significant improvement, with correct management in 73% of patients (p < 0.00001).
Conclusions:
- Antithrombotic management for atrial fibrillation remains suboptimal despite established guidelines.
- Clinical audit combined with education significantly enhances the appropriate use of antithrombotic therapy in AF.
- Improved management could potentially prevent a substantial number of strokes annually in the UK.
Abstract:
The aim of the study was to assess the extent to which published recommendations on the antithrombotic management of atrial fibrillation had been adopted into clinical practice in a busy district general hospital, and the impact of clinical audit on subsequent management. In the initial audit, 185 consecutive patients with atrial fibrillation were studied using their case notes to identify any further clinical risk factors for stroke. A management algorithm stratified patients with atrial fibrillation into high, moderate, or low risk of stroke according to the individual stroke risk factors. For patients at high risk, the correct treatment is warfarin unless there are specific contraindications. For patients at moderate risk, the correct management is aspirin unless there are specific contraindications. Patients at low risk should receive no thromboprophylaxis. The clinical risks of stroke and thromboprophylaxis on discharge from hospital were recorded. An extensive education programme on stroke prevention in atrial fibrillation was undertaken. Six months later a further 185 consecutive patients with atrial fibrillation were audited. Overall, a large proportion (306/370; 83%) of patients were at high risk of stroke. In the initial audit, antithrombotic management was correct in 89 patients (48%). In the follow up audit, antithrombotic management was correct in 135 patients (73%) (p < 0. 00001). If this improvement in management were extrapolated to all hospital patients in the United Kingdom, approximately 1400 strokes/year could be avoided. Despite broad consensus in recent publications, antithrombotic management of atrial fibrillation remains imperfect, with many patients exposed to unnecessarily high risk of stroke.