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Updated: Apr 16, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Research to real-world application: experts weigh in on the underuse of anticoagulants
Insights
Anticoagulants effectively prevent stroke in nonvalvular atrial fibrillation but are underprescribed due to various clinical and patient-related barriers. Improving education and care coordination can increase appropriate anticoagulant use.
Area of Science:
- Cardiology
- Pharmacology
- Public Health
Background:
- Anticoagulant therapy significantly reduces stroke and thromboembolic events in nonvalvular atrial fibrillation (NVAF).
- Despite proven benefits, anticoagulants are underprescribed in real-world clinical practice.
- Standardized risk assessments, recommended by guidelines, are not consistently utilized.
Purpose of the Study:
- To identify factors contributing to the underuse of anticoagulants in patients with nonvalvular atrial fibrillation.
- To explore potential strategies for improving the appropriate prescription rates of anticoagulant therapies.
Main Methods:
- Review of clinical guidelines and real-world data on anticoagulant prescribing patterns.
- Analysis of patient characteristics, comorbidities, and physician-related factors influencing treatment decisions.
- Examination of barriers such as bleeding concerns, monitoring feasibility, and patient access to care.
Main Results:
- Underprescription is multifactorial, involving patient-specific issues (comorbidities) and physician concerns (bleeding risk, monitoring challenges).
- Warfarin prescribing is particularly affected by perceived difficulties in follow-up care.
- Patient-related factors like fear of treatment and healthcare system access also contribute to underuse.
Conclusions:
- Addressing anticoagulant underuse requires a multifaceted approach.
- Strategies include enhancing physician and patient education, implementing medical therapy management, improving care coordination, and optimizing monitoring and follow-up protocols.
- These interventions aim to increase the appropriate utilization of anticoagulants in NVAF patients, thereby reducing stroke risk.
Abstract:
Although numerous studies have shown that anticoagulants can reduce the risk of stroke and thromboembolic events in patients with nonvalvular atrial fibrillation, they are underprescribed in the clinical setting. While standardized risk scoring assessments are recommended in treatment guidelines to determine when anticoagulant use may be appropriate, they are not widely used in the real-world clinical setting. Many factors contribute to anticoagulant underuse, including patient characteristics and comorbidities. Reluctance to prescribe an anticoagulant may also stem from concerns about bleeding or other perceived risks. In addition, physicians may be discouraged from prescribing anticoagulant therapy, particularly warfarin, if follow-up care and monitoring is potentially unfeasible. Patient fears of treatment and lack of access to the healthcare system also contribute to underuse. Increased awareness and education, medical therapy management programs, better care coordination, and improvements in monitoring and follow-up programs may help to increase the use of anticoagulant therapies in appropriate patients.
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