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Intense interest surrounds the development of implantable hemodynamic monitoring systems, designed to improve outcomes and reduce hospitalization rates in patients with heart failure (HF) by enabling management of derangements in physiologic parameters before they become clinically apparent. In a manufacturer-sponsored trial, researchers tested the effects of the Champion heart sensor on HF-related hospitalizations. Eligible patients had New York Heart Association class III HF of ≥3 months' duration and a hospitalization for HF within the past year. A wireless pulmonary artery sensor was placed in all patients. Sensor data were available only to physicians caring for patients randomized to treatment; control patients received usual care.
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