[Results of the first Chilean registry of unstable angina. Clinical features, risk profile and treatment].

Background: From January 2000 to June 2002, the first Chilean registry of unstable angina was carried out, with the participation of 15 hospitals.

Aim: To report the clinical and demographic features of 600 patients with unstable angina, their risk profile and prognosis.

Material And Methods: The inclusion criteria for this prospective registry were a history of recent onset of chest pain (<48 hours) or a change in the character of previous angina, associated to ischemic electrocardiographic changes and/or positive markers of myocardial damage.