It works in my situation as the medication lowers the heart's workload and increases a more efficient output. The workload is decreased by dilating the vessels and reducing excessive fluids in blood circulation, etc.

And with the help of medication to strengthen heart's contraction, it has enabled the heart to pump more blood/oxygen with each heartbeat thereby reducing heart rate. The heart no longer compensates with an enlarged heart for additional blood/oxygen and returns to a normal size as it now has the ability to meet the system's demand for blood/oxygen.

Two echo tests a year apart verify by comparison a decrease in heart size, improved EF, and reduced MVR to moderate.

Medication:
Lisinopril (ace inhibitor, dilate system vessels)
Fursomide (water pill)
Digitek (helps heart contraction)
Coreg (bata blocker, reduce heart rate)
Isosorbide (dilate heart arteries)
Ecotrin (coated aspirin) and multi-vitamins.

Coreg is prescribed for palpitations. It slows the heart rate and helps prevent irregular heartbeats.