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A Comparison of Two Different Transseptal Puncture Strategies Without Fluoroscopy Guidance

A Comparison of Two Different Transseptal Puncture Strategies Without Fluoroscopy Guidance

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07028502
Acronym
TSP
Enrollment
28
Registered
2025-06-19
Start date
2023-04-20
Completion date
2024-09-30
Last updated
2026-01-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atrial Fibrillation (AF)

Keywords

Ablation, Trans-septal puncture (TSP), Zero-fluoroscopy, Atrial Fibrillation

Brief summary

Zero-fluoroscopy is the dream of all interventionists, and as low as reasonably achievable (ALARA) is the goal the investigators can manage at this moment. Trans-septal puncture (TSP) is the most pivotal step in the ablation procedure for left heart procedure, including atrial fibrillation ablation, and it is the only step that still needs fluoroscopy in the era of 3D electroanatomical map. With the incorporation of intracardiac echocardiography (ICE), the dream of zerofluoroscopy can be achieved. Because the imaging offered by fluoroscopy or ICE is so different in terms of the advantages and shortages, the best TSP protocols might be different. Currently, in the literature, two techniques are commonly referred. However, no comparison has been made between these two techniques. Therefore, this study is to compare the safety and efficiency of these two techniques, also to observe the transition of a senior EP doctor who has been experienced in fluoroscopy-guided TSP, hoping to establish the learning curve for future reference of zerofluoroscopy promotion.

Interventions

PROCEDUREJ Wire

The movement of the puncture needle was monitored using intracardiac echocardiography rather than fluoroscopy. All other steps followed the conventional approach.

PROCEDURE3D mapping system

Guided by the ablation catheter image on the 3D mapping system, the long sheath was advanced to the puncture site and then exchanged for a puncture needle. The entire procedure was monitored with intracardiac echocardiography.

Sponsors

National Taiwan University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patients with paroxysmal or persistent AF and are scheduled to undergo at least but not limited to pulmonary vein (PV) isolation. 2. Patients who are willing to sign the informed consent.

Exclusion criteria

1. The patients need right atrial mapping and/or ablation before TSP. 2. The women who is pregnant. 3. Informed consent could not be obtained.

Design outcomes

Primary

MeasureTime frameDescription
Total TSP timePerioperativeTime duration from femoral venous access to the completion of both the first and second transseptal puncture (TSP). Unit of Measure: Minutes
Fluoroscopy usage and radiation doseduring the procedureWhether fluoroscopy was used during the procedure and the corresponding radiation dose recorded if applicable.
Incidence of procedural complicationsup to 12 weeksOccurrence of major complications during the procedure, including pericardial effusion, cardiac tamponade, stroke, or death.

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026