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充血性心力衰竭

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Mechanical circulatory support devices for acute right ventricular failure Unexpectedly Low Natriuretic Peptide Levels in Patients With Heart Failure Association of Abnormal Left Ventricular Functional Reserve With Outcome in Heart Failure With Preserved Ejection Fraction Clinical applications of machine learning in the diagnosis, classification, and prediction of heart failure The Management of Atrial Fibrillation in Heart Failure: An Expert Panel Consensus Primary Prevention of Heart Failure in Women The pyruvate-lactate axis modulates cardiac hypertrophy and heart failure Heart Failure Outcomes With Volume-Guided Management Natriuretic Peptide-Guided Heart Failure Therapy After the GUIDE-IT Study SPECT and PET in ischemic heart failure

Clinical Trial2008 Oct;156(4):641-648.e1.

JOURNAL:Am Heart J. Article Link

A randomized controlled trial to evaluate the safety and efficacy of cardiac contractility modulation in patients with systolic heart failure: rationale, design, and baseline patient characteristics.

Abraham WT, , FIX-HF-5 Investigators and Coordinators. Keywords: QRS duration; exercise tolerance; heart failure; peak Vo(2); quality of life

ABSTRACT


Cardiac contractility modulation (CCM) signals are nonexcitatory electrical signals delivered during the cardiac absolute refractory period that enhance the strength of cardiac muscular contraction. Prior research in experimental and human heart failure has shown that CCM signals normalize phosphorylation of key proteins and expression of genes coding for proteins involved in regulation of calcium cycling and contraction. The results of prior clinical studies of CCM have supported its safety and efficacy. A large-scale clinical study, the FIX-HF-5 study, is currently underway to test the safety and efficacy of this treatment. In this article, we provide an overview of the system used to deliver CCM signals, the implant procedure, and the details and rationale of the FIX-HF-5 study design. Baseline characteristics for patients randomized in this trial are also presented.