Real-time Automated Program for IDentification of VT Origin

  • End date
    May 1, 2022
  • participants needed
  • sponsor
    Amir AbdelWahab
Updated on 3 February 2021
myocardial infarction
catheter ablation
antiarrhythmic drug
sustained ventricular tachycardia


RAPID-VT Pilot is a single centre prospective cohort pilot study to assess the feasibility, safety and efficacy of catheter ablation of ventricular tachycardia (VT) guided by a novel real-time software to localize the origin of VT during the ablation procedure.


Consecutive patients with ischemic heart disease and clinical indication of VT ablation will undergo baseline clinical evaluation, echocardiography and cardiac CT imaging using a contrast-enhanced cardiac-gated method with a 64-section scanner. Trans-axial CT images comprising the whole heart volume will be exported in DICOM format. CT image processing will be performed and will be used to delineate the LV endocardial and/or epicardial geometries. These data will be imported into the RAPID-VT software and the 3D-electranatomical mapping system for image integration.

During the VT ablation procedure, VT(s) induction will be performed. The VT(s) 12-lead ECG will be acquired by the RAPID-VT software and will be localized to the scar margin using the RAPID-VT software. Catheter ablation will be attempted at software-determined sites.

Post procedure, patient will be followed up for a minimum of 6 months. That will include Remote ICD follow-up and telephone study visits. Follow-up at 6 months will include a clinic visit for assessment of heart failure status, ECG, ICD interrogation and changes in antiarrhythmic drug therapy.

Condition Vascular Diseases, Heart disease, Tachycardia, Ventricular tachycardia, Ischemic Heart Disease, Fast Heart Rate (Tachycardia), Cardiac Ischemia, Myocardial Ischemia, Cardiac Disease
Treatment RAPID-VT Software guided ablation
Clinical Study IdentifierNCT03523286
SponsorAmir AbdelWahab
Last Modified on3 February 2021


Yes No Not Sure

Inclusion Criteria

Patients will be eligible for inclusion if they fulfilled VANISH inclusion criteria by having both of
Prior myocardial infarction (pathological Q waves or imaging evidence of regional myocardial akinesis/thinning in the absence of a non-ischemic cause)38 and
One of the following VT events within the last 6 months while on Amiodarone or another class III or class I antiarrhythmic drug
Sustained monomorphic VT documented on 12-lead ECG or rhythm strip requiring termination by pharmacologic means or DC cardioversion, B: 3 episodes of symptomatic VT treated with anti-tachycardia pacing (ATP), C: 1 appropriate ICD shocks, D: 3 VT episodes within 24 hours, separated by 5 minutes, E: sustained VT below detection rate of an ICD

Exclusion Criteria

Patients will be excluded from the trial if they
Are unable or unwilling to provide informed consent
Have active ischemia or another reversible cause of VT (e.g. drug-induced arrhythmia), or had recent acute coronary syndrome requiring revascularization
Are antiarrhythmic drug-nave
Are known to have protruding left ventricular thrombus or mechanical aortic and mitral valves
Have had a prior catheter ablation procedure for VT
Are in renal failure (Creatinine clearance <15 mL/min)
Have NYHA Functional class IV heart failure or CCS Functional class IV angina
Have had recent ST elevation myocardial infarction (< 1 month)
Are pregnant or have a systemic illness likely to limit survival to <1 year
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