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

Study Status: Terminated
Recruit Status: Terminated
Study Type: Interventional

Official Title: Prospective, Randomized Single-center Study for Efficacy of Antero-posterior and Antero-lateral Electrode Position for External Electrical Cardioversion of Typical Atrial Flutter

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 Summary: 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.
Sponsor: Universitätsklinikum Hamburg-Eppendorf

Current Primary Outcome: Number of Successfully Cardioverted Participants for Each Electrode Position [ Time Frame: 30 seconds after cardioversion ]

After restoration of normal sinus rhythm for 30 seconds and longer by electrical countershock a cardioversion is counted as successful.


Original Primary Outcome: Number of Successfully Cardioverted Participants for Each Electrode Position [ Time Frame: 30 seconds after cardioversion ]

Current Secondary Outcome:

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


Original Secondary Outcome:

  • Mean Number of Cardioversion Shocks [ Time Frame: 30 seconds after cardioversion ]
  • Mean Energy Requirement for Successful Cardioversion [ Time Frame: 30 seconds after cardioversion ]
  • Number of Participants Succesfully Cardioverted With First Shock in Each Electrode Position [ Time Frame: 30 seconds after cardioversion ]


Information By: Universitätsklinikum Hamburg-Eppendorf

Dates:
Date Received: November 10, 2008
Date Started: January 2005
Date Completion:
Last Updated: August 17, 2015
Last Verified: August 2015