- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02780947
Prophylactic Substrate Ablation in Post-myocardial Patients Undergoing Defibrillator Implantation.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Background In patients with Ventricular Tachycardia (VT) and structural heart disease, the Implanted Cardioverter Defibrillator (ICD), provides a significant protection against the risk of sudden death, however it does not prevent arrhythmia recurrences [1-7]. ICD therapies, especially shocks, pose several risks, including decreased quality of life, increased mortality among patients who suffer ICD shock compared with patients who do not and clinically significant anxiety and depression as a result of recurrent ICD shocks, which has been found to occur in more than 50% of patients [8-12]. Furthermore, ICD implantation has been found not to protect against sudden cardiac death in 3-7% of patients [13].
The benefit of novel ICD programming in reducing inappropriate ICD therapy and mortality was demonstrated in Multicenter Automatic Defibrillator Implantation Trial-Reduce Inappropriate Therapy (MADIT-RIT) [14]. Catheter ablation has been considered a plausible curative therapy for VT prevention, especially in patients with VT episodes [15]. The Substrate Mapping and Ablation in Sinus Rhythm to Halt Ventricular Tachycardia (SMASH-VT) and the Ventricular Tachycardia Ablation in Coronary Heart Disease (VTACH) found that prophylactic catheter ablation reduces the incidence of appropriate ICD therapy in patients who had undergone ICD implantation as a means of secondary prevention and had a history of myocardial infarction (MI) [16,17]. It was also shown in a small retrospective study that prophylactic catheter ablation for induced VT reduced the incidence of appropriate ICD therapy in primary prevention post-MI patients [18].
Aim of the study - Statement of Hypothesis Prophylactic substrate ablation in post-MI patients undergoing defibrillator implantation reduces appropriate defibrillator therapies.
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Ikke anvendelig
Kontakter og lokationer
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Post-MI patients eligible for ICD implantation in the setting of primary prevention
Exclusion Criteria:
- NYHA IV or ambulatory NYHA IV
- Acute coronary syndrome in the last 40 days
- Stable angina not eligible to revascularization
- Revascularization in the last 3 months (except MI)
- Antiarrhythmic therapy other than b-blockers
- LVEF<20%
- GFR<30ml/min/1.73m2
- Systematic illnesses
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: Prophylactic substrate ablation group
Prophylactic substrate ablation group will undergo substrate mapping and ventricular tachycardia substrate ablation
|
Study protocol
Programmed ventricular stimulation with up to 4 extrastimuli from LV is performed and repeated at the end of the procedure in patients undergoing substrate ablation. |
|
Ingen indgriben: Control group
Control group will undergo substrate mapping
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Appropriate ICD activation therapies
Tidsramme: Within 3 years after ICD implantation
|
All post-MI patients will undergo ICD implantation and electroanatomical substrate mapping of the left ventricle. Half patients will also undergo prophylactic VT ablation aiming to late and early potentials elimination. Post-MI patients who underwent ICD implantation in the setting of primary prevention and prophylactic substrate ablation will have significant less appropriate ICD therapies. |
Within 3 years after ICD implantation
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: George Giannopoulos, MD, Attikon Hospital, University of Athens
- Ledende efterforsker: Charis Kossyvakis, MD, Athens General Hospital "G. Gennimatas"
- Ledende efterforsker: Spyros Deftereos, MD, Attikon Hospital, University of Athens
- Ledende efterforsker: Dimitris Tsiachris, MD, Athens Heart Center, Athens Medical Center
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- PREVENT-VT study
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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