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The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Primary and secondary stroke prevention in nonrheumatic atrial fibrillation by oral anticoagulation
Claudia Stöllberger1, Josef Finsterer
12nd Medical Department, Krankenanstalt Rudolfstiftung, Vienna, Austria. claudia.stoellberger@chello.at
Insights
Oral anticoagulation (OAC) significantly reduces stroke risk in atrial fibrillation (AF) patients. Optimal OAC therapy requires careful monitoring and consideration of bleeding risk factors for effective neurological care.
Area of Science:
- Cardiology
- Neurology
- Pharmacology
Background:
- Atrial fibrillation (AF) poses a significant risk of stroke and embolism.
- Oral anticoagulation (OAC) is a key therapy for managing this risk.
Purpose of the Study:
- To review OAC indications in AF patients.
- To outline bleeding risk factors associated with OAC.
- To provide practical recommendations for optimal OAC in neurological settings.
Main Methods:
- Literature review summarizing current knowledge on OAC in AF.
- Analysis of indications and bleeding risk factors.
- Formulation of practical therapeutic recommendations.
Main Results:
- Key indications for OAC include advanced age, hypertension, diabetes, prior thromboembolism, and heart failure.
- Bleeding risk factors encompass overanticoagulation (INR >3.0), age, comorbidities, polypharmacy, early therapy phase, and inadequate patient education.
- Effective OAC monitoring involves regular INR checks, patient tracking, and education on diet and drug interactions.
Conclusions:
- OAC therapy is crucial for reducing stroke risk in AF patients.
- Mitigating bleeding complications requires vigilant risk factor assessment and management.
- Optimizing OAC in the neurological context necessitates a comprehensive monitoring system and healthcare system support.
Abstract:
The risk of stroke or embolism in atrial fibrillation (AF) patients can be reduced by 68% by oral anticoagulation (OAC). This review is aimed to (1) summarize indications for OAC in patients with AF, (2) give an overview of the current knowledge of risk factors for bleeding complications of OAC and (3) give practical recommendations for an optimal OAC therapy in the neurological setting. Indications for OAC are increased age (>75 years), arterial hypertension, diabetes mellitus, previous thromboembolism, heart failure and, probably, coronary heart disease. Risk factors for bleeding complications are overanticoagulation with international normalized ratios (INRs) >3.0, increased age, arterial hypertension, diabetes mellitus, previous thromboembolism, polypharmacy, the early phase of OAC therapy and a lack of patients' education. Before initiation of OAC, the patient should be screened for potential bleeding sites. Careful monitoring of OAC comprises fixed appointments for the INR value determination, tracking for the patient, if he does not attend, advices about pain therapy, information about the influence of diet on the INR value and drug interaction, unscheduled INR determination in case of acute disorders and regular assessment if OAC is still indicated. Monitoring of OAC needs an effort, which has to be adequately estimated by the health care system.
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