Effects of hand-held paddle electrodes and biphasic shocks on the outcome of external cardioversion of atrial fibrillation

ISRCTN ISRCTN42858989
DOI https://doi.org/10.1186/ISRCTN42858989
Secondary identifying numbers N/A
Submission date
15/06/2004
Registration date
31/01/2005
Last edited
05/11/2008
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Paulus Kirchhof
Scientific

Department of Cardiology and Angiology
University Hospital Münster
Albert-Schweitzer-Straße 33
Münster
48129
Germany

Phone +49 (0)251 8347638
Email kirchhp@uni-muenster.de

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific title
Study acronymMOBIPAPA
Study objectivesA randomised trial to assess the effects of biphasic shocks in combination with an anterior-posterior electrode position and the effect of hand-held shock electrodes on external electrical cardioversion outcome.
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedAtrial fibrillation
InterventionWith an assumed success rate of the monophasic shock wave form between 79% and 90%, we calculated a group size of 100 patients per group to achieve a statistical power of 0.8 (beta error 0.2) and a two-sided alpha level of 0.05 for each of the two hypotheses.

All shocks were delivered in an anterior-posterior electrode position. Patients were anaesthetised using standard procedures (either propofol or etomidate in combination with opioid analgetics). The trial was designed to detect an absolute difference in cardioversion success rate of 10% between two different shock wave forms (monophasic/biphasic) and between two different electrode types (hand-held paddle electrodes/adhesive patch electrodes).

Due to training-dependent quality of the positioning of the cardioversion electrodes, a sequential design for the comparison of patch and paddle electrodes was chosen, while the simple exchange of the monophasic and biphasic defibrillators was tested in a randomised design.
Intervention typeOther
Primary outcome measureSuccessful restoration of sinus rhythm by the cardioversion shock.
Secondary outcome measuresNot provided at time of registration
Overall study start date01/01/2004
Completion date01/01/2005

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants200
Key inclusion criteriaAll patients presenting with persistent atrial fibrillation and an indication for external cardioversion in the Department of Cardiology of the University Hospital Münster, Germany were consecutively screened for the trial.

Inclusion criteria:
1. A clinical indication for external cardioversion of atrial fibrillation
2. Documented atrial fibrillation prior to the procedure
3. To minimise thrombo-embolic complications, documented oral anticoagulation with phenprocoumon (international normalised ratio [INR] 2 - 3) for three weeks or exclusion of left atrial thrombi by trans-oesophageal echocardiography directly prior to the cardioversion procedure was required. Continuation of anticoagulation after cardioversion was recommended for all trial patients.
Key exclusion criteriaPatients presenting with atrial flutter or atrial tachycardias
Date of first enrolment01/01/2004
Date of final enrolment01/01/2005

Locations

Countries of recruitment

  • Germany

Study participating centre

Department of Cardiology and Angiology
Münster
48129
Germany

Sponsor information

University Hospital Münster (Germany)
Hospital/treatment centre

Albert-Schweitzer-Straße 33
Münster
D-48129
Germany

ROR logo "ROR" https://ror.org/01856cw59

Funders

Funder type

Hospital/treatment centre

University Hospital Münster (Germany) - Department of Cardiology

No information available

Medtronic Inc (Germany)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan