This is an exciting development in heart failure management both in systolic and diastolic failure.

A patient of mine, age 89, a retired orthopedic surgeon, has been managed with one of the devices,

called CardioMEMS, for several years, so far with good outcome.

This device reads the pulmonary artery systolic and diastolic pressure which measures the left atrial pressure indirectly.

Newer devices measure the water content of the lungs(normal range between 25 and 35%) or directly measure

the left atrial pressure.

In the case of CardioMEMS a tiny sensor is implanted in the pulmonary artery, and

with radio frequency technology the pulmonary artery pressure wave forms and numbers are obtained daily

and provided to the treating cardiologist daily.

The newer device measuring the water content of the lungs use remote dielectric technology

does not require the implant of the sensor which is embedded in a wearable vest that

the patient needs to wear half an hour daily to make the measurements.

http://www.sciencedirect.com/science/article/pii/S0167527316313316