How CardioMEMS HF System Remote PA Pressure Monitoring Works
The CardioMEMS™ HF System provides remote hemodynamic monitoring of pulmonary artery (PA) pressures using a small sensor. Permanently implanted in the distal pulmonary artery via a safe right heart catheterization procedure, the sensor measures changes in PA pressure. These changes are a surrogate measure for fluid retention in the lungs caused by worsening heart failure.
Patient-initiated sensor readings are wirelessly transmitted to a secure remote monitoring platform for clinicians to access and review. Directly monitoring PA pressure not only alerts you if a patient’s heart failure is worsening, it also allows you to intervene earlier, adjusting medication or making other treatment changes, often before a patient experiences any symptoms.
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The Remote CardioMEMS HF System Sends PA Pressure Data from Patients’ Homes to You
- The PA Sensor is inserted via right heart catheterization
- Patient takes daily sensor reading from wherever they are using the portable CardioMEMS™ Patient Electronics System
- Data is wirelessly transmitted to Merlin.net™ Patient Care Network, a secure website that easily presents PA pressure data to inform proactive treatment modifications
- Clinician reviews data and contacts patient, as necessary

CardioMEMS HF System Components

CardioMEMS Hospital System
The CardioMEMS™ Hospital System is intuitively designed to support procedural efficiency, streamline clinical workflow practices and improve pulmonary artery pressure monitoring, so you have more time to focus on patient care.

Merlin.net Patient Care Network (PCN) HF Portal Remote Monitoring Platform
The Merlin.net Patient Care Network (PCN) HF Portal is a remote monitoring platform that presents PA pressure data as actionable information. This information can guide earlier, more appropriate intervention for each patient. Learn more about the Merlin.net PCN HF Portal here.
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