The purpose of this study is to show that data collected about the use of the CardioMEMS HF System in patient care are similar with data collected in a controlled clinical study. This study will be done at up to 150 clinical sites in the United States (US). There will be 1,200 patients included in the study.
The CardioMEMS HF System has a way to measure pulmonary artery (PA) pressures by using a small wireless sensor (about the size of a paperclip). This is put into the pulmonary artery (a vessel close to the heart). Once put in, the sensor sends a signal to an antenna inside a pillow connected to an electronic unit. This information is sent out to a secure website for the doctor to review. Patients will be able to take these PA pressure readings themselves at home. The PA pressures can also be taken in the doctor’s office, clinic, or hospital. The doctor can see the readings to make earlier treatment changes (usually changes in medications) to manage patients' heart failure.