Tomografía de tórax como método de tamizaje para COVID 19, en pacientes asintomáticos respiratorios

Abstract

Abstract:According to the Pan American Health Organization (PAHO) there are confirmed cases asymptomatic COVID-19 with high virulence, which are potent carriers of the viruses, being these a source of transmission of the disease. In this literature review It is intended to know about the clinical utility of CT (computerized tomography) of chest as a screening method for pneumonia by COVID-19 in asymptomatic patients respiratory. For this, a thorough review was carried out in scientific databases. to collect the most appropriate articles and according to the objectives of the study. They were obtained 8 studies that include a population of 1264 respiratory asymptomatic patients who were screened with chest CT to diagnose COVID-19 pneumonia, of which 291 patients had chest CT findings consistent with COVID-19 pneumonia. According to the articles reviewed, it was defined that chest CT has some limitations; between them, is that it can give false negatives by not being taken at the right time where lung changes may be evident. Although it is a useful diagnostic test with good availability and high diagnostic performance to detect early findings of COVID-19 disease, given its low specificity, it should not be used as the only screening test for COVID -19 mainly in asymptomatic respiratory patients.