The results from certain tests can provide accurate data about the degree of damage to the heart muscle. (bestliferates.org)
And broken heart syndrome rarely causes permanent damage to the heart muscle, the way most heart attacks do. (health.com)
Several studies show that this cuts damage to heart muscle by about one - third following surgery to bypass blocked arteries, when the heart's blood supply must be stopped for up to an hour. (newscientist.com)