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26-11-2019 | Original Article | Uitgave 12/2019 Open Access

Netherlands Heart Journal 12/2019

Management and outcomes of real-world use of non-vitamin-K oral anticoagulants (NOACs) in patients with atrial fibrillation: experience of a dedicated NOAC clinic

Tijdschrift:
Netherlands Heart Journal > Uitgave 12/2019
Auteurs:
A. J. W. M. de Veer, N. Bennaghmouch, M. C. E. F. Wijffels, J. M. ten Berg
Belangrijke opmerkingen

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s12471-019-01330-y) contains supplementary material, which is available to authorized users.

Abstract

Background

Current guidelines recommend non-vitamin‑K oral anticoagulants (NOACs) as the first-choice therapy for stroke prevention in patients with atrial fibrillation (AF). The use of drugs in a clinical trial setting differs from that in real-world populations. Real-world data are important to accrue more heterogeneous patient populations with respect to co-morbidities and co-medication use. The aim of this study was to evaluate the use of NOACs in daily practice in a large tertiary hospital in the Netherlands.

Methods

A single-centre prospective study was conducted among all patients with AF using a NOAC in the St. Antonius Hospital between 2013 and June 2017. The outcomes were the rates of any bleeding, stroke/transient ischaemic attack, mortality, discontinuation rate and adverse drug reactions.

Results

In total, 799 patients were enrolled with a mean follow-up of 1.7 years. Mean age was 69.8 (SD ± 11) and 61.2% were male. Mean CHA2DS2-VASc score was 2.8 (SD ± 1.6) and mean HAS-BLED score was 1.4 (SD ± 0.9). Bleeding occurred in 6.0, major bleeding in 1.8, stroke in 1.2 patients per 100 patient-years, and 87 patients (10.9%) died during the follow-up period. Adverse drug reactions were reported by 59 patients (7.4%). Finally, 249 patients (31.2%) reported a temporary interruption and 132 (16.5%) permanent discontinuation of NOAC treatment, of whom 33 (25%) patients switched to a vitamin‑K antagonist.

Conclusions

We observed low rates of bleeding and adverse drug reactions. However, rates of mortality and discontinuation were relatively high. These results could possibly be explained by the real-world nature of the data including higher-risk patients.

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Netherlands Heart Journal

Het Netherlands Heart Journal wordt uitgegeven in samenwerking met de Nederlandse Vereniging voor Cardiologie en de Nederlandse Hartstichting. Het tijdschrift is Engelstalig en wordt gratis beschikbaa ...

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