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Yes, low blood pressure as a result of the reduced ability of the left side of the heart to properly pump out enough blood with each contraction. It is a percentage of the blood that comes into the chamber and then is ejected out with each pump, and is called ejection fraction. Can be measured on an echocardiogram done with sound and mapping of the size of the chamber inside the heart. Normal is around 58% , below 35 is terrible

The low bp that results causes a loop of hormone reactions that will cause the heart rate to go up to compensate for the lower blood/oxygen flow to critical areas— like the brain. The result of this increased heart rate is that the heart muscle, initially starved for oxygen will continue to wear itself out compensating. It is a vicious cascade of natural events that leads to death without intervention. You can't replace damaged heart muscle and get it back up to full function— you can only try to assist the body with agents to reduce the amount of stress on the organs from this, and reduce the amount of fluids that build up.