Figure 4. Changes in quality of life with cardiac resynchronization therapy (CRT) versus controls (based on the Minnesota Living with Heart Failure [MLWHF] Questionnaire). CHF = congestive heart failure; COMPANION = Comparison of Medical Therapy, Pacing, and Defibrillation in Chronic Heart Failure; CONTAK- CD = Guidant CONTAK CD CRT-D System Trial; MIRACLE = Multicenter InSync Randomized Clinical Evaluation; MIRACLE-ICD = Multicenter InSync Randomized Clinical Evaluation ICD [implantable cardioverter-defibrillator]; MUSTIC-AF = Multisite Stimulation in Cardiomyopathies Atrial Fibrillation; MUSTIC-SR = Multisite Stimulation in Cardiomyopathies Sinus Rhythm; PATH-CHF = Pacing Therapies for Congestive Heart Failure.

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