Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 7:23 PM
Ignite Modification Date:
2025-12-24 @ 7:23 PM
NCT ID:
NCT02323503
Brief Summary:
Cardiac resynchronization therapy (CRT) has been shown to reduce heart failure (HF), hospitalizations and death in patients with left ventricular ejection fraction (LVEF) \<35% and wide QRS. CRT provides electromechanical resynchronization and improves LV systolic function. The induced LV reverse remodeling or near normalization in LVEF to ≥45% is associated with a significant reduction in the risk of subsequent life-threatening ventricular tachyarrhythmias (VTA). And at the time of replacement, the need for defibrillator back-up after an event-free first CRT-D service-life for patients with improved LVEF is a controversy question.
80% of Implantable Cardioverter Defibrillator (ICD) patients implanted for primary prevention do not experience VTA during the life-time of their first device.
So, regarding patients implanted with a CRT-D for primary prevention at the time of first implantation, the question is will they experience VTA after their device replacement by another CRT-D.
Detailed Description:
The objective of this study is to describe, in a population of patients who had a primary prevention ICD indication at first implantation of a CRT-D, the relevance defibrillator back-up after the replacement of the first CRT-D. For that, the rate of patients with at least one sustained VTA detected by the CRT-D or a conventional surface ECG will be assessed after the device replacement.
Furthermore, the association between the baseline characteristics of the CRT-D population after replacement and the risk of subsequent VTA will be explored after a minimum of two years FU.
Study:
NCT02323503
Study Brief:
Protocol Section:
NCT02323503