Recombinant tissue-type plasminogen activator followed by heparin compared with heparin alone for refractory unstable angina pectoris

The American Journal of Cardiology
D ArdissinoG Specchia

Abstract

Patients with unstable angina pectoris who remain symptomatic despite medical treatment are at high risk of death and myocardial infarction. The incidence of refractory unstable angina was examined in a consecutive series of 103 patients who received conventional medical treatment with nitrates, beta blockers, calcium antagonists and aspirin. During 48 hours of continuous electrocardiographic monitoring, 24 patients had greater than or equal to 1 anginal attack, 5 of whom had both painful and painless ischemic episodes. In these 24 patients with unstable angina refractory to conventional medical treatment, the short-term efficacy of recombinant tissue-type plasminogen activator (rt-PA) followed by heparin was assessed and compared with heparin alone in a randomized double-blind trial. Recurrences of ischemic attacks during a 72-hour follow-up period were documented in 9 of the 12 patients given heparin alone. All patients experienced at least 1 symptomatic ischemic episode and 1 patient had both painful and painless ischemia. No patient given rt-PA plus heparin had either symptomatic or asymptomatic ischemic attacks during follow-up. Kaplan-Meier curves analysis demonstrated a significantly higher probability of being ischemia ...Continue Reading

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Myocardial Preinfarction Syndrome
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