why is fibrosis of the cardiac muscle serious
Answer: With fibrosis the heart muscle stiffens and is unable to fill the atria as it once did; therefore, less blood is pumped. Further, as the muscle stiffens it takes more energy to expel the. bolus of blood from the heart, which will eventually weaken the heart.oth a drop in blood volume and a. weakened heart could cause this, but the chest pains suggest heart damage. Failure of. compensating mechanisms to maintain blood pressure suggest a serious decline in cardiac. output.