Safety and Efficacy of Edoxaban in Thoracoscopic Ablation

2019-10-16 10:39:38 | BioPortfolio


The aim of this study is to compare the safety and efficacy of edoxaban and warfarin for prevention of stroke during a 6-month follow up after total thoracoscopic ablation.


In Korea, 5% of patients older than 65 years and 10% of patients older than 80 have a history of atrial fibrillation (AF), which is often associated with sudden death and stroke. Medication and percutaneous radiofrequency catheter ablation are commonly used treatment modalities. Pharmacotherapy is primarily symptomatic treatment; moreover, the effect of conversion to a normal rhythm is minimal, and mainly aimed at stabilizing heart rate. Catheter ablation is associated with a high incidence of recurrence in chronic AF, and it is difficult to treat left atrial appendage, thereby preventing discontinuation of anticoagulation therapy post procedure. Thoracoscopic ablation is known to be a less invasive and more effective modality to treat patients with chronic atrial fibrillation. However, anticoagulation therapy is mandatory in the early postoperative period due to intracardiac thromboembolism associated with atrial stunning despite conversion to a sinus rhythm and resection of the left atrial appendage. Further investigation would be required to assess the efficacy and safety of novel oral anticoagulants such as edoxaban compared to that of warfarin for stroke prevention during the early postoperative period (6 months) after a thoracoscopic procedure. The need to maintain a constant level of blood coagulation and the potential development of complications such as hemorrhages are drawbacks associated with the use of warfarin. While novel oral anticoagulants such as edoxaban do have a role in atrial fibrillation, data regarding their effectiveness and incidence of complications after arrhythmia surgery do not exist. In this study, we will compare warfarin and edoxaban with respect to safety and efficacy, after they are used for 6 months following thoracoscopic ablation in patients with chronic atrial fibrillation

Study Design


Atrial Fibrillation


Edoxaban, Warfarin


Samsung Medical Center
Korea, Republic of




Samsung Medical Center

Results (where available)

View Results


Published on BioPortfolio: 2019-10-16T10:39:38-0400

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Medical and Biotech [MESH] Definitions

An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.

Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).

Long-term changes in the electrophysiological parameters and/or anatomical structures of the HEART ATRIA that result from prolonged changes in atrial rate, often associated with ATRIAL FIBRILLATION or long periods of intense EXERCISE.

A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)

Impaired or delayed impulse conduction between the right and left HEART ATRIA. Advanced interatrial blocks are often associated with arrhythmias (e.g., ATRIAL FLUTTER; and ATRIAL FIBRILLATION), direct conduction block via the Bachmann's bundle and concomitant left atrial enlargement. Syndrome of advanced interatrial block associated with SUPRAVENTRICULAR TACHYCARDIA is referred to as Bayes syndrome.

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