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Optimised Decrement Evoked Potential (DeEP) Mapping to Guide Ventricular Tachycardia (VT) Ablation in Patients With Structural Heart Disease VT

NCT06937983 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 77

Last updated 2026-04-13

No results posted yet for this study

Summary

Ventricular tachycardia (VT) is a life-threatening heart rhythm disorder. Special pacemakers called implantable cardiac defibrillators (ICDs) help treat VT episodes, however they do not prevent the VT episodes from occurring. Catheter ablation for VT is a minimally-invasive and established procedure for preventing VT recurrence. This involves placing wires in the heart to find the diseased areas that are responsible for the VT episodes. The diseased areas are shown on computer-generated maps and are later removed via controlled tissue heating (ablation). A major challenge during the VT ablation procedure is locating the diseased area responsible for the VT episodes. Several methods have been described to locate the diseased heart area, however these methods are not always effective.

In this study, we aim to improve the identification of the diseased heart areas responsible for the VT episodes using a novel method. Our research group have developed, tested and peer-reviewed this improved method of locating diseased areas by looking for signals called decrementing evoked potentials (DeEPs). Ablation will target DeEPs shown on the computer-generated maps. We will assess if VT can be triggered at the end of the procedure. Patients will be monitored over 12 months to see if ablation of DeEPs leads to a reduction in VT episodes. We aim to recruit 77 patients with established heart disease of any cause, who have suffered VT episodes with ICDs. Suitable patients will be identified and recruited from inpatient and outpatient settings. A quality-of-life questionnaire will be completed by patients before and after the ablation procedure. The procedure will be performed as routine standard of care, in the cardiac catheter laboratory across multiple recruiting cardiac centres in the UK providing well established VT ablation service.

Overall, this study will contribute towards developing refined VT ablation techniques, aiming to improve patient outcomes.

Conditions

  • Structural Heart Disease

Interventions

PROCEDURE

Optimised DeEP-guided ablation

Optimised decrement evoked potential (DeEP) mapping in VT ablation.

Sponsors & Collaborators

  • University Hospitals Coventry and Warwickshire NHS Trust

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-04-11
Primary Completion
2027-12-03
Completion
2027-12-03

Countries

  • United Kingdom

Study Locations

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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 NCT06937983 on ClinicalTrials.gov