There are multiple devices and approaches around for HF...

There are multiple devices and approaches around for HF including StemCell therapy.
I've worked on the theory that any device must start a beneficial cycle and it must start it immediately and be very low risk.
What's the time lag between a heart beating better and getting the blood flow (nutrients) to beat better?
What's the time lag between the heart beating better and enough blood pressure to turn off the bodies emergency responses which become very damaging in long term HF, (get blood flow to organs.)
You can get the heart to beat better but if it isn't getting the nutrients to support that better beating???
I theorise that C-Pulse starts at the other end.