Outcome of Induced Atypical Atrial Flutter

University Hospital Essen

Status: Completed

Conditions: Clinical Outcome; Induction of Arryhthmia; Atypical Atrial Flutter; Tachyarrhythmia

Treatments: Procedure: Induction of atypical atrial flutter

Study type: Observational

Funder types: Other

Identifiers

NCT06323499

UK Essen

Details and patient eligibility

About

Background: Atypical atrial flutter (AAF) is an increasingly relevant clinical problem. Despite advancements in mapping and ablation techniques, the general management of these patients remain challenging especially when mapping cannot be performed during ongoing arrhythmia. There are no data whether induction of AAF is a feasible approach in these cases.

Methods: The investigators retrospectively analyzed patients who underwent catheter ablation of AAF and compared procedural results between patients with ongoing tachycardia when starting the procedure and patients with induced AAF.

For this retrospective study, the investigators analyzed patients undergoing ablation of AAF between April 2018 and January 2021 that were identified from the ablation database at the West German Heart and Vascular Center, Essen. All patients were followed up in the outpatient clinic as part of the clinical standard routine or contacted by telephone to assess the occurrence of clinical recurrence of any arrhythmia. In case the documentation was not performed at the institution, relevant documents and ECGs were requested and reviewed.

This single-center cohort study was conducted at the University Hospital Essen, Germany, in accordance with the Declaration of Helsinki and its amendments and was approved by the institutional review board of the University of Essen (number 21-10341-BO). Written informed consent was obtained from all study participants.

The primary study endpoint was to evaluate the outcome of patients with induced AAF in comparison to patients with ongoing AAF when starting the procedure. Furthermore, the investigators analyzed the type of recurrence during follow-up as well as the occurrence and results of repeat ablations at the institution. The investigators also evaluated if the recurrent AAF form was the same or de-novo compared to the AAF during previous procedure.

Enrollment: 76 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• >18 years
• symptomatic atypical atrial flutter and electrophysiological study with ablation

Exclusion criteria

• inability to comply with follow up
• participation in another trial that may interfere

Trial design

76 participants in 2 patient groups

Induced atypical atrial flutter

Description:

Sinus rhythm when starting the procedure, so atypical atrial flutter had to be induced.

Treatment:

Procedure: Induction of atypical atrial flutter

Ongoing atrial flutter

Description:

Atypical atrial flutter was already ongoing when starting the procedure.