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Impact of New Biomarkers on Maintenance of Sinus Rhythm After Cardioversion or Ablation of Atrial Fibrillation

2019-07-10 16:47:03 | BioPortfolio

Summary

The Biorhythm study aims to investigate the utility of new biomarkers (e.g. MR proANP, ST2) measured pre-procedure for the prediction of procedural success in patients with atrial fibrillation undergoing cardioversion or ablation.

Description

This is a prospective, observational, multicentre study of patients with paroxystic or persistent atrial fibrillation scheduled to undergo cardioversion or ablation of AF in routine practice. We will measure serum levels of MR proANP and ST2 pre-procedure to attempt to identify a threshold that carries prognostic value for procedural success (maintenance of sinus rhythm at one year).

Study Design

Conditions

Atrial Fibrillation

Intervention

Ablation of atrial fibrillation, Cardioversion

Location

University Hospital Jean Minjoz
Besancon
France
25000

Status

Not yet recruiting

Source

Centre Hospitalier Universitaire de Besancon

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-07-10T16:47:03-0400

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Medical and Biotech [MESH] Definitions

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.

A condition caused by dysfunctions related to the SINOATRIAL NODE including impulse generation (CARDIAC SINUS ARREST) and impulse conduction (SINOATRIAL EXIT BLOCK). It is characterized by persistent BRADYCARDIA, chronic ATRIAL FIBRILLATION, and failure to resume sinus rhythm following CARDIOVERSION. This syndrome can be congenital or acquired, particularly after surgical correction for heart defects.

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