CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 415 enrolled
Drug / intervention
Boston Scientific Open Irrigated Ablation Cathetersdevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03729830
NCT03729830N/ACompleted

Prospective Evaluation of Open Irrigated Ablation Catheters With High Resolution Mapping to Treat Paroxysmal Atrial Fibrillation

Boston Scientific Corporation·observational·Posted Nov 5, 2018·Updated Jan 21, 2026

In Brief

An observational study evaluating Boston Scientific Open Irrigated Ablation Catheters for Paroxysmal Atrial Fibrillation. Completed, enrolled 415 participants across 26 sites in 6 countries.

Detailed Summary

To obtain data for the Rhythmia™ Mapping System in conjunction with Boston Scientific Open-Irrigated (OI) Catheters for ablation of Paroxysmal Atrial Fibrillation (PAF) according to current international and local guidelines. Primary objective: To assess acute and long-term outcomes for the Rhythmia Mapping System in conjunction with Boston Scientific Open-Irrigated Ablation Catheters to treat de novo Paroxysmal Atrial Fibrillation. De Novo PAF is defined as subjects undergoing first ablation procedure for PAF with no prior left atrial ablation (RF, Cryo, Surgical).

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
CountriesGermany, Japan, Monaco, South Korea, United Kingdom, United States
Collaborators--

Timeline

N/ACompletedFinished
20192020202120222023202420252026
First PostedNov 5, 2018
Enrollment StartMar 4, 2019
Primary CompletionMay 3, 2024
TodayJul 2, 2026
Enrollment to primary: 5.2 yearsPosted 7.7 years ago

Interventions

Boston Scientific Open Irrigated Ablation Cathetersdevice

The BSC Open-Irrigated catheters are designed to deliver RF energy to catheter tip electrode for cardiac ablation. The BSC OI catheters incorporate an open-irrigated cooling mechanism through a tip that is partitioned into two chambers. The proximal chamber circulates normal saline (0.9 %) within the tip to cool the proximal electrode and mitigate overheating while the distal chamber allows the fluid to flow through six irrigation holes into the patient's vasculature, thereby cooling the tip/tissue interface.