Patients who underwent PA pressure implantation from January 1, 2019 will be identified for registry participation. Patients who were implanted before November 8, 2022 will be considered enrolled in the retrospective arm of the registry and may not need to consent if consent waiver is granted by the institutional IRB (Institutional Review Board).

Patients will be identified as eligible for PA pressure sensor implant by a heart failure cardiologist. Patients will consent for device implant and procedure (right heart catheterization) as per standard of care. Patients may also consent to registry participation as per local institutional guidelines and requirements.

We are collecting information for both retrospective and prospective arm to further understand the utility of PA pressure sensors.

Hemodynamic data such as mean PA pressure in mmHg, PA systolic pressure in mmHg, PA diastolic pressures in mmHg, will be collected at the time of implant of PA pressure sensor and at 3 months, 6 months, 12 months, 24 months and 36 months post implant.

Echo data such as Left Ventricular Ejection Fraction (LVEF) percentage will be collected at implant and at 3 months, 6 months, 12 months, 24 months and 36 months if available.

Medications changes such as type of diuretics, will be collected after implant and at 3 months, 6 months, 12 month, 24 months and 36 months. We are not collecting any doses or frequencies.

Sodium levels, reported as millimoles per liter (mmol/L), will be collected at implant and 3 months, 6 months, 12 months, 24 months and 36 months post implant.

Potassium level, reported as milliequivalents per liter (mEq/L), will be collected at implant and 3 months, 6 months, 12 months, 24 months and 36 months post implant.

Hemoglobin concentration (Hb) reported as grams of hemoglobin per deciliter of blood (g/dL). Labs will be collected at implant, 3 months, 6 months, 12 months, 24 months and 36 months post implant