Antero-posterior Versus Antero-lateral Electrode Position for Electrical Cardioversion of Typical Atrial Flutter

Not Applicable

Terminated

• Conditions: Atrial Flutter
• Interventions: Procedure: external electrical cardioversion (with antero-posterior electrode position); Procedure: external electrical cardioversion (with antero-lateral electrode position)

• Registration Number: NCT00860314
• Lead Sponsor: Universitätsklinikum Hamburg-Eppendorf

Brief Summary

The aim of this study is to identify the one electrode position out of two most commonly used for external electrical cardioversion of typical atrial flutter, which needs less delivered energy and less needed number of shocks for successful cardioversion.

Detailed Description

Typical atrial flutter is the second-most prevalent atrial tachyarrhythmia. No guidelines for treatment exist and few studies investigate treatment of atrial flutter. Mostly, guidelines for atrial fibrillation are followed for treatment of atrial flutter. Atrial flutter has a different pathomechanism as atrial fibrillation, therefore special guidelines for treatment are needed. Among drug treatment and ablation procedures, external electrical cardioversion is commonly used, especially for treatment of acute symptomatic patients. This study may help to further define safe and successful procedures for electrical cardioversion of atrial flutter.

Study Timeline

• Study Start: 2005-01
• Primary Completion: 2005-12
• Study Completion: 2005-12
• Study First Submitted: 2008-11-10
• Results First Submitted: 2008-11-10
• Study First Submitted QC: 2009-03-11
• Results First Submitted QC: 2009-03-11
• Study First Posted: 2009-03-12
• Results First Posted: 2009-03-12
• Status Verified: 2015-08
• Last Update Submitted: 2015-08-17
• Last Update Posted: 2015-08-27

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 96

Inclusion Criteria

• clinical diagnosis of typical atrial flutter
• signed written informed consent
• eligibility for sedation and external electrical cardioversion

Exclusion Criteria

• clinical diagnosis of arrhythmia other than typical atrial flutter
• implanted ICD or pacemaker
• proof of atrial thrombi

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
AP Position	external electrical cardioversion (with antero-posterior electrode position)	Cardioversion with antero-posterior electrode position
AL Position	external electrical cardioversion (with antero-lateral electrode position)	Cardioversion with antero-lateral electrode position

Primary Outcome Measures

Name	Time	Method
Number of Successfully Cardioverted Participants for Each Electrode Position	30 seconds after cardioversion	After restoration of normal sinus rhythm for 30 seconds and longer by electrical countershock a cardioversion is counted as successful.

Secondary Outcome Measures

Name	Time	Method
Number of Participants Succesfully Cardioverted With First Shock in Each Electrode Position	30 seconds after cardioversion	Number of participants successfully cardioverted to normal sinus rhythm with one shock of 50 Joules.
Mean Number of Cardioversion Shocks	30 seconds after cardioversion
Mean Energy Requirement for Successful Cardioversion	30 seconds after cardioversion	Overall energy in the mean (number of joules) necessary for successful cardioversion of all patients per group.

Trial Locations

Locations (1)

University Hospital Hamburg-Eppendorf, Heart Center; 🇩🇪 Hamburg, Germany