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Clinical Study on the Risk of Left Atrial POP Ablation and Esophageal Injury Under Ultra-High Power and Related Influencing Parameters

NCT06699368 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 120

Last updated 2024-11-21

No results posted yet for this study

Summary

This study aims to evaluate the risks of steam pop (POP) and esophageal injury, as well as related influencing parameters, under ultra-high power ablation technology. In the treatment of arrhythmias such as atrial fibrillation, cardiac ablation surgery is a common method. The use of ultra-high power ablation technology can shorten the operation time and improve effectiveness, but it may also increase the risk of damage to surrounding structures such as the esophagus. We will recruit a certain number of patients who are scheduled to undergo ultra-high power ablation surgery. We will record various parameters during the surgery, such as energy, time, and contact force, and monitor patients for signs of esophageal injury after the surgery. We expect that through this study, we can better understand the potential risks of ultra-high power ablation to the esophagus and identify the key parameters affecting these risks. This will help to improve surgical techniques, reduce complications, and enhance patient safety and surgical outcomes.

Conditions

  • Ultra-High Power Ablation,Safety of Atrial Fibrillation Ablation

Interventions

PROCEDURE

The ultra-high-power ablation group

The ultra-high-power ablation group will use the QDOT ablation catheter with a power of 90W, ablation points at site 3, inter-point distance maintained at 4-5mm, pressure maintained at 5-30g. The cold saline flow rate during ablation is 8ml/min, and the ablation device will adjust power and saline flow rate based on the electrode temperature at the tip of the QDOT ablation catheter. The target temperature is 60°C, and the cut-off temperature is 65°C, with an ablation endpoint of 4 seconds.

PROCEDURE

The high-power ablation group

The high-power ablation group will use the STSF ablation catheter with a power of 50W, ablation points at site 3, inter-point distance maintained at 4-5mm, pressure maintained at 5-30g, and a cold saline flow rate of 15ml/min during ablation. The ablation endpoint for the posterior wall of the left atrium is an Ablation Index (AI) value of 360-410, for the anterior wall 450-480, and for the bottom and top of the left atrium 420-450.

Sponsors & Collaborators

  • The Third People's Hospital of Chengdu

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-11-28
Primary Completion
2025-05-05
Completion
2025-06-05
FDA Device
Yes

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06699368 on ClinicalTrials.gov