Heart failure is triggered by conditions that either directly damage a heart or cause damage indirectly by making it work too hard.
The mound turns into a major blockage, the artery closes, and eventually a stroke or a heart attack is triggered.
This reflex probably originates in the heart and is triggered by activation of myocardial mechanoreceptors, which are stimulated by vigorous contractions around a nearly empty left ventricular cavity.
He explains how fat and cholesterol can build up for years, but that the heart attack itself is triggered by a single cataclysmic event.
Since the perfusion imaging is triggered at heart beats, this results in one breathing cycle covering approximately six frames in the time series.
Several hypotheses have been proposed to explain, why and how cytokine release is triggered in heart failure, one possible player being the neurohumoral dysbalance, while other studies suggest an overspill of cytokines from the failing heart itself.
Other times it is triggered by the painful, slower-developing kind of heart attack caused by a blocked coronary artery.
"An emotion is triggered.
In recent years, scientists have come to believe that while high cholesterol causes fatty deposits in blood vessels, heart attacks are triggered when inflammation causes the deposits to break off and clog an artery.
