Rendimiento del Spect Talio201 reposo-redistribución para predecir viabilidad post infarto reciente del miocardio
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Claudia Coll C ; Patricio González E [1] ; Teresa Massardo V ; Paulina Sierralta C ; Pamela Humeres A ; Josefina Jofré M ; Jorge Yovanovich S ; Ivonne Aramburú M ; Solange Brugère O ; Hernán Chamorro B ; Alfredo Ramírez N ; Sonia Kunstmann F ; Héctor López B
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[1] Universidad de Chile
Universidad de Chile
Santiago, Chile
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- Localización: Revista Médica de Chile, ISSN-e 0034-9887, Vol. 130, Nº. 3, 2002, págs. 243-250
- Idioma: español
- Títulos paralelos:
- Performance of Thallium201 rest-redistribution Spect to predict viability in recent myocardial infarction
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Resumen
Background: The detection of viability after acute myocardial infarction is primordial to select the most appropriate therapy, to decrease cardiac events and abnormal remodeling. Thallium201 SPECT is one of the radionuclide techniques used to detect viability. Aim: To evaluate the use of Thallium201 rest-redistribution SPECT to detect myocardial viability in reperfused patients after a recent myocardial infarction. Patients and methods: Forty one patients with up to of 24 days of evolution of a myocardial infarction were studied. All had angiographically demonstrated coronary artery disease and were subjected to a successful thrombolysis, angioplasty or bypass grafting. SPECT Thallium201 images were acquired at rest and after 4 h of redistribution. These results were compared with variations in wall motion score, studied at baseline and after 3 or 4 months with echocardiography. Results: The sensitivity of rest-redistribution Thallium201 SPECT, to predict recovery of wall motion was 91% when patient analysis was performed and 79% when segmental analysis was done in the culprit region. The figures for specificity were 56 and 73% respectively. Conclusions: Rest-distribution Thallium201 SPECT has an excellent sensitivity to predict myocardial viability in recent myocardial infarction. The data obtained in this study is similar to that reported for chronic coronary artery disease (Rev Méd Chile 2002; 130: 243-50).
