What is a potential consequence of untreated ischemia in myocardial tissue?

Untreated ischemia in myocardial tissue can lead to myocardial infarction, which occurs when there is a prolonged lack of blood flow and oxygen to a portion of the heart muscle. Ischemia typically results from the blockage of coronary arteries, often due to atherosclerosis or a blood clot. If blood flow is not restored, the affected heart muscle cells begin to die due to the deprivation of oxygen and nutrients, culminating in a heart attack or myocardial infarction.

This process is critical because the heart relies on a continuous supply of oxygen-rich blood to function effectively. Once the heart tissue is irreversibly damaged from ischemia, it cannot be reversed, which emphasizes the urgency of addressing ischemic episodes promptly. Recognizing and treating ischemia early can prevent the progression to myocardial infarction and protect heart function.