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Antithrombotic Therapy After TAVR

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Transvascular Aortic Valve Replacement (TAVR) has emerged as a treatment option in patients with severe aortic stenosis who are inoperable and has recently been evaluated in patients with intermediate surgical risk. The number of procedures is increasing worldwide in parallel with the demographic changes in industrial countries. The risk for cerebral embolism is of main concern and represents a major determinant for prognosis and quality of live after TAVR. The empiric antithrombotic therapy consists of Dual Antiplatelet Therapy (DAPT); However the risk-benefit of this approach is lacking evidence from randomized, placebo-controlled trials regarding choice and duration of antithrombotic treatment. Although anticoagulation is generally not recommended in patients with aortic bioprosthesis without atrial fibrillation, there is current uncertainty whether combination of antiplatelet and anticoagulant therapy or anticoagulation alone might represent a more favorable antithrombotic regimen compared to the current empiric standard of DAPT. In addition, so far undetected atrial fibrillation is highly prevalent in the elderly population undergoing TAVR. In particular, the favorable safety profile of Non-Vitamin K Oral Anticoagulants (NOAC) offers an attractive option. A number of trials are currently underway to investigate the benefit of NOAC in patients with and without atrial fibrillation undergoing TAVR. The present article reviews the available evidence concerning stroke risk in TAVR patients and the current and future role of antithrombotic therapy during and after the procedure.
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Keywords: Antithrombotic Therapy; DAPT; NOAC; SVT; TAVR; stroke

Document Type: Review Article

Publication date: September 1, 2018

This article was made available online on January 26, 2018 as a Fast Track article with title: "Antithrombotic Therapy After TAVR".

More about this publication?
  • Vascular disease is the commonest cause of death in Westernized countries and its incidence is on the increase in developing countries. It follows that considerable research is directed at establishing effective treatment for acute vascular events. Long-term treatment has also received considerable attention (e.g. for symptomatic relief). Furthermore, effective prevention, whether primary or secondary, is backed by the findings of several landmark trials.

    Vascular disease is a complex field with primary care physicians and nurse practitioners as well as several specialties involved. The latter include cardiology, vascular and cardio thoracic surgery, general medicine, radiology, clinical pharmacology and neurology (stroke units). Current Vascular Pharmacology will publish reviews to update all those concerned with the treatment of vascular disease. For example, reviews commenting on recently published trials or new drugs will be included. In addition to clinically relevant topics we will consider 'research-based' reviews dealing with future developments and potential drug targets. Therefore, another function of Current Vascular Pharmacology is to bridge the gap between clinical practice and ongoing research.

    Debates will also be encouraged in the correspondence section of this journal.
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