Inappropriate Therapy and Shock Rates Between the Subcutaneous and Transvenous Implantable Cardiac Defibrillator: A Secondary Analysis of the PRAETORIAN Trial

. 2024 Dec ; 17 (12) : e012836. [epub] 20241203

Jazyk angličtina Země Spojené státy americké Médium print-electronic

Typ dokumentu časopisecké články, multicentrická studie, randomizované kontrolované studie, srovnávací studie

Perzistentní odkaz   https://www.medvik.cz/link/pmid39624908

BACKGROUND: Inappropriate therapy (IAT) is an undesirable side effect of implantable cardiac defibrillator (ICD) therapy. Early studies with the subcutaneous ICD (S-ICD) showed relatively high inappropriate shock (IAS) rates. The PRAETORIAN (Prospective Randomized Comparison of Subcutaneous and Transvenous Implantable Cardioverter Defibrillator Therapy) trial demonstrated that the S-ICD is noninferior to the transvenous ICD (TV-ICD) with regard to the combined end point of IAS and complications. This secondary analyses evaluates all IAT in the PRAETORIAN trial. METHODS: This international, multicenter trial randomized 849 patients with an indication for ICD therapy between S-ICD (n=426) and TV-ICD therapy (n=423). ICD programming was mandated by protocol. All analysis were performed in the modified intention-to-treat population. RESULTS: In both groups 42 patients experienced IAT (48-month Kaplan-Meier estimated cumulative incidence, 9.9% and 10.1%, respectively; hazard ratio (HR), 0.99 [95% CI, 0.65-1.52]; P=0.97). There was no significant difference in patients experiencing IAS between both groups (P=0.14). In the S-ICD group, 81 IAT episodes with 124 IAS and 1 inappropriate antitachycardia pacing occurred versus 89 IAT episodes with 130 IAS and 124 inappropriate antitachycardia pacing in the TV-ICD group. IAT episodes were most frequently caused by supraventricular tachycardias in the TV-ICD group (n=83/89) versus cardiac oversensing in the S-ICD group (n=40/81). In the TV-ICD group, a baseline heart rate >80 bpm (HR, 1.99 [95% CI, 1.05-3.76]; P=0.03), a history of atrial fibrillation (HR, 2.66 [95% CI, 1.41-5.02]; P=0.003), and smoking (HR, 2.46 [95% CI, 1.31-4.09]; P=0.005) were independent predictors for IAT. A QRS duration >120 ms was an independent predictor for IAT caused by cardiac oversensing in the S-ICD group (HR, 3.13 [95% CI, 1.34-7.31]; P=0.008). Post-IAS interventions significantly reduced IAS recurrence in both groups (P=0.046). CONCLUSIONS: There was no significant difference in IAT and IAS rates between the S-ICD and TV-ICD in a conventional ICD population, but causes and predictors for IAT differed between the devices. After the first IAS, an intervention significantly reduced the recurrence rate of IAS. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT01296022.

1st Department of Medicine University Medical Center Mannheim Germany

Cardiac Electrophysiology Division Department of Medicine Englewood Hospital and Medical Center Englewood NJ

Center for Arrhythmia Care Heart and Vascular Institute University of Chicago Pritzker School of Medicine IL

CorVita Science Foundation Chicago IL

Department of Cardiology Amphia Hospital the Netherlands

Department of Cardiology Amsterdam Cardiovascular Sciences Amsterdam UMC Location VUMC the Netherlands

Department of Cardiology Amsterdam UMC Location University of Amsterdam Heart Center Amsterdam Cardiovascular Sciences Heart failure and Arrhythmias the Netherlands

Department of Cardiology Cardiovascular Research Institute Maastricht Maastricht University Medical Center the Netherlands

Department of Cardiology Flevoziekenhuis Almere the Netherlands

Department of Cardiology Homolka Hospital Prague Czech Republic

Department of Cardiology Isala Heart Centre Zwolle the Netherlands

Department of Cardiology OLVG Amsterdam the Netherlands

Department of Cardiology Radboud University Medical Center Nijmegen the Netherlands

Department of Cardiology St Antonius Hospital Nieuwegein the Netherlands

Department of Cardiology Tergooi MC Blaricum the Netherlands

Department of Cardiology The Heart Centre Rigshospitalet University of Copenhagen Denmark

Department of Electrophysiology Catharina Hospital Eindhoven the Netherlands

Department of Electrophysiology Heart Center at University of Leipzig Germany

Department of Internal Medicine 1 Jena University Hospital Germany

Department of Medicine 1 Ludwig Maximillians University Hospital München Germany

Department of Medicine Cardiology Columbia University Irving Medical Center New York NY

Division of Cardiology Northwestern Memorial Hospital Northwestern University Chicago IL

Division of Cardiology Section of Electrophysiology Emory University Atlanta GA

Division of Cardiovascular Medicine College of Medicine The Ohio State University Columbus

European Reference Network for Rare Low Prevalence and Complex Diseases of the Heart ERN GUARD Heart Amsterdam the Netherlands

German Center for Cardiovascular Research Munich Heart Alliance Germany

German Center for Cardiovascular Research Partner Site Heidelberg Mannheim Germany

Heart Surgery Heart Center Dresden Carl Gustav Carus Medical Faculty Dresden University of Technology Germany

Icahn School of Medicine at Mount Sinai Mount Sinaï Hospital New York NY

Liverpool Heart and Chest Hospital United Kingdom

Medical Spectrum Twente Enschede the Netherlands

Medisch Centrum Leeuwarden the Netherlands

National Heart and Lung Institute Imperial College London United Kingdom

Office of the Director of Clinical Electrophysiology Research and Lead for Inherited Arrhythmia Specialist Services University College London and Barts Heart Centre United Kingdom

Oxford Biomedical Research Centre Oxford University Hospitals National Health Service Trust United Kingdom

St George's University Hospitals National Health Service Foundation Trust London United Kingdom

St George's University of London United Kingdom

The Valley Health System Ridgewood NJ

University and University Hospital Würzburg Germany

Werkgroep Cardiologische Centra Nederland Utrecht the Netherlands

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ClinicalTrials.gov
NCT01296022

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