My Operaheart attack or stroke
Saturday, May 3, 2008 9:24:44 AM
Acute myocardial infarction (AMI or MI), more commonly known as a heart attack, is a medical condition that occurs when the blood supply to a part of the heart is interrupted, most commonly due to rupture of a vulnerable plaque. The resulting ischemia or oxygen shortage, if left untreated for a sufficient period, can cause damage and/or death of heart tissue. It is a medical emergency, and the leading cause of death for both men and women all over the world. Important risk factors are a history of vascular disease such as atherosclerotic coronary heart disease and/or angina, a previous heart attack or stroke, any previous episodes of abnormal heart rhythms or syncope, older age—especially men over 40 and women over 50, smoking, excessive alcohol consumption, the abuse of certain drugs, high triglyceride levels, high LDL (low-density lipoprotein, "bad cholesterol") and low HDL (high density lipoprotein, "good cholesterol"), diabetes, high blood pressure, obesity, and chronic high stress levels. Chronic kidney disease[2] and a history of heart failure are also significant risk factors which may indicate a hightened disposition towards suffering a MI.
The term myocardial infarction is derived from myocardium (the heart muscle) and infarction (tissue death due to oxygen starvation). The phrase "heart attack" is sometimes used incorrectly to describe sudden cardiac death, which may or may not be the result of acute myocardial infarction. A heart attack is different from, but can be the cause of cardiac arrest, which is the stopping of the heartbeat, and cardiac arrhythmia, an abnormal heartbeat. It is also distinct from heart failure, in which the pumping action of the heart is impaired; severe myocardial infarction may lead to heart failure, but not necessarily.
Classical symptoms of acute myocardial infarction include chest pain (typically radiating to the left arm or left side of the neck), shortness of breath, nausea, vomiting, palpitations, sweating, and anxiety (often described as a sense of impending doom). Patients frequently feel suddenly ill. Women often experience different symptoms from men. The most common symptoms of MI in women include shortness of breath, weakness, and fatigue. Approximately one fourth of all myocardial infarctions are silent, without chest pain or other symptoms. A history of diabetes should heighten the index of suspicion, particularly if the patient has diabetic neuropathy (diabetes-related nerve damage).
Immediate treatment for suspected acute myocardial infarction includes oxygen, aspirin, and sublingual glyceryl trinitrate (colloquially referred to as nitroglycerin and abbreviated as NTG). Pain relief is also often given, classically morphine sulfate.
The term myocardial infarction is derived from myocardium (the heart muscle) and infarction (tissue death due to oxygen starvation). The phrase "heart attack" is sometimes used incorrectly to describe sudden cardiac death, which may or may not be the result of acute myocardial infarction. A heart attack is different from, but can be the cause of cardiac arrest, which is the stopping of the heartbeat, and cardiac arrhythmia, an abnormal heartbeat. It is also distinct from heart failure, in which the pumping action of the heart is impaired; severe myocardial infarction may lead to heart failure, but not necessarily.
Classical symptoms of acute myocardial infarction include chest pain (typically radiating to the left arm or left side of the neck), shortness of breath, nausea, vomiting, palpitations, sweating, and anxiety (often described as a sense of impending doom). Patients frequently feel suddenly ill. Women often experience different symptoms from men. The most common symptoms of MI in women include shortness of breath, weakness, and fatigue. Approximately one fourth of all myocardial infarctions are silent, without chest pain or other symptoms. A history of diabetes should heighten the index of suspicion, particularly if the patient has diabetic neuropathy (diabetes-related nerve damage).
Immediate treatment for suspected acute myocardial infarction includes oxygen, aspirin, and sublingual glyceryl trinitrate (colloquially referred to as nitroglycerin and abbreviated as NTG). Pain relief is also often given, classically morphine sulfate.
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