Preventive VT Substrate Ablation in Ischemic Heart Disease
NCT ID: NCT04675073
Last Updated: 2023-08-30
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE3
58 participants
INTERVENTIONAL
2021-06-01
2025-12-31
Brief Summary
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Detailed Description
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On the other hand, catheter ablation has become an essential tool in the treatment of ventricular arrhythmias in patients with structural heart disease (SHD). VT ablation techniques have evolved towards substrate-based approaches that permit to abolish multiple VT circuits irrespective of their inducibility or hemodynamic tolerability, improving outcomes with respect to clinical VT ablation. Moreover, VT substrate ablation procedures performed during sinus rhythm and CMR-guided have proven to be safe, with very low procedure related complications.
The investigators hypothesize that preventive VT substrate ablation in patients with chronic ICM, previously selected based on imaging criteria (BZC mass) for their likely high arrhythmic risk, is safe and effective in preventing clinical VT events.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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ABLATE arm
Ventricular tachycardia substrate ablation intending to: i) eliminate all the potential arrhythmogenic substrate, aiming for complete electrical isolation/elimination of all the electrograms with delayed components or showing hidden slow conduction properties, and ii) non-inducibility or ventricular tachycardias at the end of the procedure. Standard medical treatment will also be given for these patients.
Ventricular tachycardia substrate-based radiofrequency ablation
The CARTO3 electroanatomic navigation system (Biosense Webster, Diamond Bar, CA, USA) will be used for ablation. An open irrigated 3.5-mm tip ablation catheter (ThermoCool SmartTouch, Biosense Webster, Diamond Bar, CA, USA) will be used for mapping and ablation. The first step of the procedure will be the acquisition of a fast-anatomical map (FAM) of the aorta. This FAM will be then used to integrate the multi-detector cardiac tomography (MDCT) reconstruction and cardiac magnetic resonance (CMR)-derived pixel-signal intensity (PSI) maps within the spatial reference coordinates of the CARTO3 system. RF will be delivered at the entrance of the border zone channels (BZCs) identified in the PSI maps (CMR-guided scar dechanneling technique). Programmed ventricular stimulation (PVS) will be always performed after substrate elimination to test for final inducibility.
NO-TREAT arm
Only standard medical treatment will be offered for these patients.
No interventions assigned to this group
Interventions
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Ventricular tachycardia substrate-based radiofrequency ablation
The CARTO3 electroanatomic navigation system (Biosense Webster, Diamond Bar, CA, USA) will be used for ablation. An open irrigated 3.5-mm tip ablation catheter (ThermoCool SmartTouch, Biosense Webster, Diamond Bar, CA, USA) will be used for mapping and ablation. The first step of the procedure will be the acquisition of a fast-anatomical map (FAM) of the aorta. This FAM will be then used to integrate the multi-detector cardiac tomography (MDCT) reconstruction and cardiac magnetic resonance (CMR)-derived pixel-signal intensity (PSI) maps within the spatial reference coordinates of the CARTO3 system. RF will be delivered at the entrance of the border zone channels (BZCs) identified in the PSI maps (CMR-guided scar dechanneling technique). Programmed ventricular stimulation (PVS) will be always performed after substrate elimination to test for final inducibility.
Eligibility Criteria
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Inclusion Criteria
* Chronic, stable ischemic heart disease, irrespectively of the LVEF.
* Life expectancy of \> 1 year with a good functional status.
* Documented scar AND a BZC mass \> 5.15 g as measured per LGE-CMR and automatic post-processing using the ADAS-3D LV (ADAS 3D Medical SL, Barcelona, Spain).
* Signed informed consent.
Exclusion Criteria
* Pregnancy.
* Life expectancy of \< 1 year, or bad functional status (NYHA IV functional class).
* Other concomitant structural heart diseases (e.g. congenital, non-ischemic, etc.)
* Previously documented sustained ventricular arrhythmias.
* Impossibility to perform a contrast-enhanced CMR study.
* Calculated BZC mass in the scarred tissue \< 5.15 g using the ADAS-3D LV software.
* Concomitant investigation treatments.
* Medical, geographical and social factors that make study participation impractical, and inability to give written informed consent. Patient's refusal to participate in the study.
18 Years
ALL
No
Sponsors
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Centro Medico Teknon
OTHER
Responsible Party
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Antonio Berruezo, MD, PhD
Head of Arrhythmia Section
Principal Investigators
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Antonio Berruezo, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
Centro Médico Teknon
Locations
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Centro Medico Teknon
Barcelona, , Spain
Countries
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Central Contacts
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Facility Contacts
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References
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Klem I, Weinsaft JW, Bahnson TD, Hegland D, Kim HW, Hayes B, Parker MA, Judd RM, Kim RJ. Assessment of myocardial scarring improves risk stratification in patients evaluated for cardiac defibrillator implantation. J Am Coll Cardiol. 2012 Jul 31;60(5):408-20. doi: 10.1016/j.jacc.2012.02.070.
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Sapp JL, Wells GA, Parkash R, Stevenson WG, Blier L, Sarrazin JF, Thibault B, Rivard L, Gula L, Leong-Sit P, Essebag V, Nery PB, Tung SK, Raymond JM, Sterns LD, Veenhuyzen GD, Healey JS, Redfearn D, Roux JF, Tang AS. Ventricular Tachycardia Ablation versus Escalation of Antiarrhythmic Drugs. N Engl J Med. 2016 Jul 14;375(2):111-21. doi: 10.1056/NEJMoa1513614. Epub 2016 May 5.
Di Biase L, Burkhardt JD, Lakkireddy D, Carbucicchio C, Mohanty S, Mohanty P, Trivedi C, Santangeli P, Bai R, Forleo G, Horton R, Bailey S, Sanchez J, Al-Ahmad A, Hranitzky P, Gallinghouse GJ, Pelargonio G, Hongo RH, Beheiry S, Hao SC, Reddy M, Rossillo A, Themistoclakis S, Dello Russo A, Casella M, Tondo C, Natale A. Ablation of Stable VTs Versus Substrate Ablation in Ischemic Cardiomyopathy: The VISTA Randomized Multicenter Trial. J Am Coll Cardiol. 2015 Dec 29;66(25):2872-2882. doi: 10.1016/j.jacc.2015.10.026.
Soto-Iglesias D, Penela D, Jauregui B, Acosta J, Fernandez-Armenta J, Linhart M, Zucchelli G, Syrovnev V, Zaraket F, Teres C, Perea RJ, Prat-Gonzalez S, Doltra A, Ortiz-Perez JT, Bosch X, Camara O, Berruezo A. Cardiac Magnetic Resonance-Guided Ventricular Tachycardia Substrate Ablation. JACC Clin Electrophysiol. 2020 Apr;6(4):436-447. doi: 10.1016/j.jacep.2019.11.004. Epub 2020 Feb 26.
Fernandez-Armenta J, Soto-Iglesias D, Silva E, Penela D, Jauregui B, Linhart M, Bisbal F, Acosta J, Fernandez M, Borras R, Villuendas R, Cano L, Guasch E, Mont L, Berruezo A. Safety and Outcomes of Ventricular Tachycardia Substrate Ablation During Sinus Rhythm: A Prospective Multicenter Registry. JACC Clin Electrophysiol. 2020 Oct 26;6(11):1435-1448. doi: 10.1016/j.jacep.2020.07.028.
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Andreu D, Ortiz-Perez JT, Fernandez-Armenta J, Guiu E, Acosta J, Prat-Gonzalez S, De Caralt TM, Perea RJ, Garrido C, Mont L, Brugada J, Berruezo A. 3D delayed-enhanced magnetic resonance sequences improve conducting channel delineation prior to ventricular tachycardia ablation. Europace. 2015 Jun;17(6):938-45. doi: 10.1093/europace/euu310. Epub 2015 Jan 23.
Andreu D, Berruezo A, Ortiz-Perez JT, Silva E, Mont L, Borras R, de Caralt TM, Perea RJ, Fernandez-Armenta J, Zeljko H, Brugada J. Integration of 3D electroanatomic maps and magnetic resonance scar characterization into the navigation system to guide ventricular tachycardia ablation. Circ Arrhythm Electrophysiol. 2011 Oct;4(5):674-83. doi: 10.1161/CIRCEP.111.961946. Epub 2011 Aug 31.
Acosta J, Fernandez-Armenta J, Penela D, Andreu D, Borras R, Vassanelli F, Korshunov V, Perea RJ, de Caralt TM, Ortiz JT, Fita G, Sitges M, Brugada J, Mont L, Berruezo A. Infarct transmurality as a criterion for first-line endo-epicardial substrate-guided ventricular tachycardia ablation in ischemic cardiomyopathy. Heart Rhythm. 2016 Jan;13(1):85-95. doi: 10.1016/j.hrthm.2015.07.010. Epub 2015 Jul 9.
Soto-Iglesias D, Acosta J, Penela D, Fernandez-Armenta J, Cabrera M, Martinez M, Vassanelli F, Alcaine A, Linhart M, Jauregui B, Efimova E, Perea RJ, Prat-Gonzalez S, Ortiz-Perez JT, Bosch X, Mont L, Camara O, Berruezo A. Image-based criteria to identify the presence of epicardial arrhythmogenic substrate in patients with transmural myocardial infarction. Heart Rhythm. 2018 Jun;15(6):814-821. doi: 10.1016/j.hrthm.2018.02.007. Epub 2018 Feb 7.
Fernandez-Armenta J, Penela D, Acosta J, Andreu D, Evertz R, Cabrera M, Korshunov V, Vassanelli F, Martinez M, Guasch E, Arbelo E, Maria Tolosana J, Mont L, Berruezo A. Substrate modification or ventricular tachycardia induction, mapping, and ablation as the first step? A randomized study. Heart Rhythm. 2016 Aug;13(8):1589-95. doi: 10.1016/j.hrthm.2016.05.013. Epub 2016 May 12.
Acosta J, Andreu D, Penela D, Cabrera M, Carlosena A, Korshunov V, Vassanelli F, Borras R, Martinez M, Fernandez-Armenta J, Linhart M, Tolosana JM, Mont L, Berruezo A. Elucidation of hidden slow conduction by double ventricular extrastimuli: a method for further arrhythmic substrate identification in ventricular tachycardia ablation procedures. Europace. 2018 Feb 1;20(2):337-346. doi: 10.1093/europace/euw325.
Berruezo A, Fernandez-Armenta J, Andreu D, Penela D, Herczku C, Evertz R, Cipolletta L, Acosta J, Borras R, Arbelo E, Tolosana JM, Brugada J, Mont L. Scar dechanneling: new method for scar-related left ventricular tachycardia substrate ablation. Circ Arrhythm Electrophysiol. 2015 Apr;8(2):326-36. doi: 10.1161/CIRCEP.114.002386. Epub 2015 Jan 12.
Falasconi G, Penela D, Soto-Iglesias D, Francia P, Teres C, Viveros D, Bellido A, Alderete J, Meca-Santamaria J, Franco P, Ordonez A, Diaz-Escofet M, Matiello M, Maldonado G, Scherer C, Huguet M, Camara O, Ortiz-Perez JT, Marti-Almor J, Berruezo A. Preventive substrate ablation in chronic post-myocardial infarction patients with high-risk scar characteristics for ventricular arrhythmias: rationale and design of PREVENT-VT study. J Interv Card Electrophysiol. 2023 Jan;66(1):39-47. doi: 10.1007/s10840-022-01392-w. Epub 2022 Oct 13.
Other Identifiers
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PREVENT-VT
Identifier Type: -
Identifier Source: org_study_id
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