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 @ 3:39 PM
Ignite Modification Date:
2025-12-24 @ 3:39 PM
NCT ID:
NCT00205192
Brief Summary:
Cardiac resynchronization therapy shows great promise as a method to improve ventricular function in heart failure due to dilated cardiomyopathy. It is applied to patients with class III and IV symptomatic heart failure on optimal therapy. Typical entry criteria in the trials testing resynchronization have used the electrocardiogram and a prolonged electrocardiogram (ECG) QRS interval as criteria for dyssynchrony. This is recognized to be quite limited as a tool for identifying patients. Several new echocardiographic methods for identifying dyssynchrony have been proposed. The purpose of this study is to systematically examine these multiple echocardiographic measurement techniques in three conditions:
1. in the patient's native rhythm simulated by changing the pacing system to atrial pacing only;
2. in conventional dual chamber pacing (DDD mode); and
3. during biventricular pacing. All patients entered into this study will already have had a biventricular pacemaker placed.
Study:
NCT00205192
Study Brief:
Protocol Section:
NCT00205192