Treatment with oral anticoagulant drugs restrained from patients with atrial fibrillation: An assessment in a geographically well-defined catchment area

Andersson, Per Ola; Löndahl, Magnus

doi:10.1177/2047487316631395

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…A 2010 survey of GPs in Sweden indicated that major reasons for withholding OAC therapy from high risk patients included a lack of medical indication, regained sinus rhythm and assumed poor patient compliance. 26 Nevertheless, there are clearly a large number of high risk patients in New Zealand primary care who should be using OACs.…”

Section: Discussionmentioning

confidence: 99%

Atrial fibrillation in New Zealand primary care: Prevalence, risk factors for stroke and the management of thromboembolic risk

Tomlin¹,

Lloyd

Tilyard

2016

Eur J Prev Cardiolog

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Background: Atrial fibrillation is a major risk factor for stroke and heart disease but there is limited information on its prevalence in New Zealand primary care or the treatment provided to manage thromboembolic risk. Our aim was to estimate the prevalence of atrial fibrillation, assess patient risk for thromboembolism and evaluate the appropriateness of risk reduction using antiplatelet and oral anticoagulation therapy. Design: A retrospective cohort study utilising electronic medical records for 739,000 patients registered with 170 general practices in 2014. Methods: Patient diagnoses and prescriptions from 2010-2014 were analysed to identify patients with atrial fibrillation in 2014 and co-morbidities included in the CHA 2 DS 2 -VASc algorithm. Adjusted prevalence of atrial fibrillation by patient demographic group and the proportion of patients following recommended antithrombotic therapy were calculated. Results: 12,712 patients were identified with AF (1.72%, 95% confidence interval 1.69%-1.75%). Prevalence was significantly higher for Maori (odds ratio 1.91, 95% confidence interval 1.80-2.03) than Europeans after adjusting for age, sex, deprivation and clinical risk factors. Stroke risk for Maori and Pacific Island patients was higher than for Europeans across all age groups. Of the 10,406 patients (81.9%) at high risk for thromboembolism, 60.5% were using anticoagulants, 24.1% aspirin monotherapy and 15.4% neither anticoagulants nor aspirin. Oral anticoagulants were used by 31.5% of patients at low risk (CHA 2 DS 2 -VASc <2). Conclusions: Oral anticoagulants are under-utilised in the management of thromboembolic risk in high risk patients with atrial fibrillation. Better promotion of guideline recommendations for the treatment of patients with atrial fibrillation may be required to improve clinician and patient decision-making.

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Section: Discussionmentioning

confidence: 99%