Comparative Outcomes of Radiofrequency Ablation of Concealed and Manifest Accessory Pathways: a Single Center, Retrospective Observational Study
Starting soon
Conditions studied: Atrioventricular Reentrant Tachycardias, Wolff-Parkinson-White (WPW) Syndrome
In brief
The aim of this observational, retrospective study is to evaluate, comparatively, procedural outcomes of APs (Accessory pathway) ablation according to the conduction properties (i.e., manifest vs. concealed) and to assess both short- and long-term outcomes of RFA (RF ablation).
Key facts
- Study ID
- NCT07435181
- Run by
- IRCCS Ospedale San Raffaele
- People needed
- 220
- Starts
- 2026-04-01
- Expected to finish
- 2027-07-01
- Last updated by the study team
- 2026-02-27
Who can join
Age: 5 and older, up to 60. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Patients who consecutively underwent an electrophysiological (EP) study between 2005 and 2023 at San Raffaele Scientific Institute are included if they met one of the following criteria:
- Patients referred for EP study due to:
- EITHER clinical suspicion of paroxysmal supraventricular tachycardia without prior documentation of ventricular pre-excitation and/or supraventricular arrhythmia (SVA) on 12-lead surface electrocardiogram, OR with electrocardiographic evidence of SVA, AND electrophysiological confirmation of atrioventricular re-entrant tachycardia (AVRT) as the arrhythmic mechanism.
- Ventricular pre-excitation documented on serial 12-lead surface ECGs, with or without clinical episodes suggestive of AVRT, who underwent catheter ablation of the accessory pathway based on:
- The presence of high-risk electrophysiological features (e.g., short antegrade effective refractory period of the AP, rapid conduction during atrial fibrillation), or Induction of sustained AVRT during the EP study.
- Aged between 5 to 60 years old
You may not qualify if…
- Lack of pre-specified follow-up: only patients with at least 1 years follow-up ambulatory visit will be included in the study
- REDO CA procedure
Full record on ClinicalTrials.gov
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