Hypertrophic Obstructive Cardiomyopathy (HOCM)
Conditions
Keywords
Hypertrophic Obstructive Cardiomyopathy (HOCM), Pacing
Brief summary
The purpose of this study is to evaluate the benefit of the optimal pacing configuration, including the possibility of biventricular or left ventricular pacing, in hypertrophic obstructive cardiomyopathy patients.
Detailed description
In this study, subjects will be randomized to Cardiac Resynchronization Therapy-Defibrillation (CRT-D) or Cardiac Resynchronization Therapy-Pacing (CRT-P) vs Pacing Therapy AAI. Randomization will be stratified by indication. Optimal pharmacological therapy in both treatment arms. Length of follow-up for each subject will be 2y, since all subjects will be followed to a common study termination date.
Interventions
All patients will be pacing during two years
No Pacing during the first year. In the second year all patients will be pacing
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients with hypertrophic Obstructive Cardiomyopathy with significant left ventricular obstruction (baseline LVOT gradient more 50mmHg and severe symptoms
Exclusion criteria
* HOCM intraventricular gradient \< 50mmHg * LV ejection fraction \< 50% * mild symptoms
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline in Left ventricular mass and resting left ventricular outflow tract gradient (mmHg). | 1 and 2 years | Change from Baseline in Left ventricular mass and resting left ventricular outflow tract gradient (mmHg) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline in Clinical evaluation of NYHA,QoL,6MWT,interventricular septum thickness,posterior wall thickness,provoked left ventricular outflow tract gradient,mitral regurgitation grade. | 1 and 2 years | Change from Baseline in Clinical evaluation (New York Heart Association(NYHA), Quality of life Questionnaire (QoL), 6 Minutes Walk Test (6MWT)), interventricular septum thickness, posterior wall thickness, provoked left ventricular outflow tract gradient, mitral regurgitation grade. |
Countries
Spain