In the United States, the number of heart failure (HF) hospitalizations remains high despite efforts to detect HF decompensation earlier by telemonitoring surveillance of patients’ signs and symptoms. Because hemodynamic changes precede HF decompensation by several weeks, the ability to monitor pulmonary artery pressures by an implanted sensor can allow for the early detection of rising pulmonary artery pressures, earlier intervention, and the reduction of HF hospitalization.

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