RESUMO
Objective To investigate the effect of injecting?-acceptor inhibitor on the acute extensive miocardial infarction prognosis. Methods 53 cases patients with acute extensive miocardial infarction were injected Betaloc 5mg, after 3 times, taken Betaloc orally. Betaloc was not applied in another 49 cases patients with acute extensive miocardial infarction.The curative effect was compared between the two groups. Results The efficient or inefficient ratio of the group with Betaloc or the group without Betaloc was 48/53, 5/53 or 36/49, 13/49 respectively. The difference was significant by ?~2 test .Conclusions The patient with acute extensive miocardial infarction can get the extra good by means of early application of ?-acceptor inhibitor except the patient with no-no of the application of Betaloc.