title: [Mechanical reperfusion in acute myocardial infarction after failure of thrombolysis with intravenous streptokinase].
abstract: OBJECTIVE
  to report the clinical evolution of four patients with acute myocardial infarction that were subjected to immediate coronary angioplasty due to the failure of reperfusion with streptokinase.
  
  
  BACKGROUND
  the limitations for the use of thrombolytic agents, an accepted treatment of acute myocardial infarction, or their uncertain results in selected groups of patients has prompted the search for mechanical revascularization infarction subjected to thrombolytic therapy with streptokinase (1.500.000 U i.v.) after administration of hydrocortisone (100 mg i.v.) and acetyl salicylic acid (500 mg od). After 60 min thrombolytic therapy and due to hemodynamic depression with requirement of inotropic agents or the absence of clinical signs of reperfusion, the patients were subjected to coronary angiography. In view of a total occlusion or severe stenosis of the artery responsible for the infarction, an immediate transluminal angiography was performed to improve coronary flow.
  
  
  RESULTS
  transluminal coronary angioplasty revascularized arteries with total occlusion or increased the lumen of those with severe residual stenosis. This was accompanied by reduction in pain and hemodynamic improvement. In one patient with complete AV block, conduction was improved and sinus rhythm was recovered. Echocardiographic controls showed preservation of ventricular function with persistence of segmental motility alterations.
  
  
  CONCLUSIONS
  transluminal coronary angioplasty can be a revascularization alternative in patients with acute myocardial infarction and failure of reperfusion with systemic streptokinase.
authors.affiliation: Centro Cardiovascular, Facultad de Medicina, Universidad de Chile, Hospital Josć Joaquin Aguirre.
authors.forename: A
authors.initials: A
authors.lastname: Ramirez
authors.forename: H
authors.initials: H
authors.lastname: Ugalde
authors.forename: F
authors.initials: F
authors.lastname: Ayala
authors.forename: J
authors.initials: J
authors.lastname: Yovanovic
authors.forename: H
authors.initials: H
authors.lastname: Chamorro
authors.forename: A M
authors.initials: AM
authors.lastname: Silva
authors.forename: P
authors.initials: P
authors.lastname: Quispe
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000188:drug therapy / Q000628:therapy*; D011379:Prognosis; D013300:Streptokinase / Q000627:therapeutic use*; D015912:Thrombolytic Therapy; D013997:Time Factors; D016276:Ventricular Function
chemical_list: D013300:Streptokinase
vernacular_title: Reperfusion mecanica en infarto agudo de miocardio por fracaso de trombolisis con estreptoquinasa endovenosa.