Definition of Unstable Angina Pectoris

Angina pectoris is chest discomfort as a result of myocardial ischemia without infarction. Clinical classification of angina basically useful for evaluating the mechanism of ischemic. Unstable angina pectoris is a clinical syndrome that dangerous and is a type of angina pectoris that can turn into a myocardial infarction or death.

Unstable angina pectoris syndrome has long been known as an early symptom of acute myocardial infarction (AMI). Many studies have reported that unstable angina pectoris is a risk for the occurrence of AMI and death. Several studies have shown that 60-70% of patients with AMI and 60% of patients with a history of sudden death in illness with symptoms of unstable angina pectoris. While the long-term research to get AMI occurs in 5-20% of patients with unstable angina pectoris with a mortality rate of 14-80%.

In the group with chest pain, there is a heart attack two times greater in number than those who did not experience chest pain. In the group who experience angina and possible heart attack before (they admitted had experienced at least one severe attack of chest pain, which lasted longer than usual, even at rest), there are more than six times the heart attack compared to other groups.

Unstable angina pectoris, located between the spectrum of stable angina pectoris and myocardial infarction, so it is a challenge in preventing the occurrence of myocardial infarction.


Definition of Unstable Angina Pectoris

Angina pectoris is a clinical syndrome in which the client had an attack of typical chest pain, namely; like pressure, or feel heavy in the chest, often radiating to the left arm which arise during and immediately lost activity when the activity stops. (Anwar, Bahri, 2009)

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