• C Jerjes-Sánchez, A Ramírez Rivera, R Arriaga Nava, and G Pimentel Morales.
• Hospital de Cardiología, Centro Médico Nacional Siglo XXI, IMSS, México, D.F.
• Arch Inst Cardiol Mex. 1993 May 1; 63 (3): 227-34.

AbstractWe report the case of a 65 year old woman with no prior cardiac or pulmonary disease, who suffered pulmonary embolism (PE); diagnosis was made on the basis of the existence of risk factors, clinical, radiographic and electrocardiographic features, and a lung scan with perfusion defects and normal ventilation. PE was considered massive because the patient developed acute respiratory failure that required tracheal intubation and mechanical ventilation as well as obstructive shock, electrocardiographic and echocardiographic data of right ventricle overload, and pulmonary hypertension, with pulmonary artery pressure of 38 mmHg. She received an initial treatment with high doses (1,500,000 UI) and rapid infusion (1 hr) of intravenous streptokinase (SK) followed by heparin anticoagulation. Thereafter the hemodynamic disturbances improved and pulmonary artery pressure post-thrombolysis was 23 mmHg. In this report SK at high doses and rapid infusion showed effectiveness and security. We emphasize the usefulness of echocardiography as a diagnostic aid in patients with a previously healthy cardiopulmonary system, as well as the possible role of electrocardiogram as an early indicator of pulmonary reperfusion. This could be the first report of successful thrombolysis with high doses and rapid infusion of SK in massive PE.

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