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When coronary vasospasm occurs, the occlusion temporarily produces ischemia. A wide array of symptoms or presentations can follow: ranging from asymptomatic myocardial ischemia, sometimes referred to as silent ischemia, to myocardial infarction and even sudden cardiac death. [4] [1]
Coronary ischemia, myocardial ischemia, [1] or cardiac ischemia, [2] is a medical term for abnormally reduced blood flow in the coronary circulation through the coronary arteries. [3] Coronary ischemia is linked to heart disease , and heart attacks . [ 4 ]
Myocardial infarction (MI) refers to tissue death of the heart muscle caused by ischemia, the lack of oxygen delivery to myocardial tissue. It is a type of acute coronary syndrome , which describes a sudden or short-term change in symptoms related to blood flow to the heart. [ 22 ]
Each year in the United States, according to the Centers for Disease Control and Prevention (CDC), about 735,000 people have a heart attack and 610,000 people die of coronary heart disease (CHD).
Of the estimated 805,000 heart attacks each year in the U.S., a projected 170,000 of them are silent heart attacks, according to statistics from the American Heart Association,” Dr. Mehta says.
Some patients, especially elderly and diabetics, may present with what is known as a painless myocardial infarction or a "silent heart attack". A painless MI can present with all of the associated symptoms of a heart attack, including nausea, vomiting, anxiety, heaviness, or choking, but the classic chest pain described above is lacking. [9] [15]
Dr. Jeremy London is a heart surgeon and a heart attack survivor. He operates on diseased hearts, but like many people, he ignored his own symptoms of a coronary artery blockage until it became an ...
hibernating myocardium, silent ischemia, myocardial infarction, acute pericarditis, myocarditis, pulmonary embolism Myocardial stunning or transient post-ischemic myocardial dysfunction is a state of mechanical cardiac dysfunction that can occur in a portion of myocardium without necrosis after a brief interruption in perfusion , despite the ...
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