Unstable Angina or Heart Attack before Chest Pain

Chest | Cardiology | Unstable Angina or Heart Attack before Chest Pain (Disease)


Unstable angina term was first used three decades ago and means intermediate status between myocardial infarction and the chronic stable angina. Unstable angina is synonymous with the terms of the intermediate syndrome of mild heart attack and angina. The incidence of unstable angina is increasing and nearly one million people admitted receiving this diagnosis.

Causes and Risk factors

The risk of death, myocardial infarction and complications is variable due to diverse clinical spectrum that is covered by the term unstable angina. Studies show that the incidence of death in the first week after admission is 4% and the incidence of myocardial infarction is 10%. Adverse prognostic factors are: drum of ST segment, old age, left ventricular dysfunction and extent of the disease .

Women with unstable angina are old and have an increased prevalence of hypertension, diabetes, congestive heart failure and family history of heart disease than mens richest. Males tend to experience higher incidence of myocardial infarction and revascularization, increased levels of cardiac enzymes at diagnosis and high rates of revascularization and catheterization.

The causes of the unstable angina are the same as for the stable: a broken plaque buildup in the formation of thrombi that completely or partially obstruct a main coronary branch, severe anemia, hypertension and congestive heart failure. Unlike stable angina pain or discomfort associated with unstable angina: often occurs at rest, night sleep or physical activity minimum;Is sudden, is more severe and longer lasting up to 30 minutes; not relieved by rest or nitroglycerin; is a sign that heralds a heart attack in the immediate future.

Diagnosis and Treatment

For people with unstable angina are immediate therapeutic options to prevent heart failure. In over 85% of patients emergency treatment to stabilize symptoms. You can opt for a catheterization, angioplasty or cardiac bypass. Emergency angioplasty and open heart surgery necessary in patients unresponsive to the remaining methods. ...

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