Browsing by Author "Aravena León, Carlos Andrés"
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- ItemAnálisis crítico de un artículo: ¿Es confiable la medición de adenosin deaminasa (ADA) para el diagnóstico de derrame pleural tuberculoso?(2009) Herrera Riquelme, Cristian Alberto; Aravena León, Carlos AndrésBackground: Conventional tests are not always helpful in making a diagnosis of tuberculous pleurisy. Many studies have investigated the usefulness of adenosine deaminase (ADA) in pleural fluid for the early diagnosis of tuberculous pleuresy. We conducted a metaanalysis to determine the accuracy of ADA measurements in the diagnosis of tuberculous pleurisy. Methods: After a systematic review of English language studies, sensitivity, specificity, and other measures of accuracy of ADA concentration in the diagnosis of pleural effusion were pooled using random effects models. Summary receiver operating characteristic curves were used to summarize overall test performance. Results: Sixty-three studies met our inclusion criteria. The summary estimates for ADA in the diagnosis of tuberculous pleurisy in the studies included were sensitivity 0.92 (95% confidence interval 0.90-0.93), specificity 0.90 (95% confidence interval 0.89-0.91), positive likelihood ratio 9.03 (95% confidence interval 7.19-11.35), negative likelihood ratio 0.10 (95% confidence interval 0.07-0.14), and diagnostic odds ratio 110.08 (95% confidence interval 69.96-173.20). Conclusions: ADA determination is a relative sensitive and specific test for the diagnosis of tuberculous pleurisy. Measurement of ADA in pleural effusion is thus likely to be a useful diagnostic tool for tuberculous plerisy. The results of ADA assays should be interpreted in parallel with clinical findings and the results of conventional tests
- ItemAspergilosis traqueobronquial necrotizante en paciente crítico(2015) Andresen Hernández, Max; Venegas Garrido, Carmen Paz; Vega, C.; Aravena León, Carlos Andrés; Andresen V., M.
- ItemCT and physiologic determinants of dyspnea and exercise capacity during the six-minute walk test in mild COPD(2013) Díaz, Alejandro A.; Morales, Arturo; Díaz, Juan Carlos; Ramos, Cristóbal; Klaassen Lobos, Julieta Isabel; Saldías Peñafiel, Fernando; Aravena León, Carlos Andrés; Díaz, Rodrigo; Lisboa Basualto, Carmen; Washko, George R.; Díaz, Orlando
- ItemIdiopathic subglottic stenosis: a review(2020) Aravena León, Carlos Andrés; Almeida, F. A.; Mukhopadhyay, S.; Ghosh, S.; Lorenz, R. R.; Murthy, S. C.; Mehta, A. C.
- ItemMinimally Invasive Methods for Staging in Lung Cancer : Systematic Review and Meta-Analysis(2016) Labarca, Gonzalo; Aravena León, Carlos Andrés; Ortega, Francisco; Arenas, Alex; Majid, Adnan; Folch, Erik; Mehta, Hiren J.; Jantz, Michael A.; Fernandez Bussy, Sebastian
- ItemPirfenidone for Idiopathic Pulmonary Fibrosis : A Systematic Review and Meta-Analysis(2015) Aravena León, Carlos Andrés; Labarca, Gonzalo; Venegas Garrido, Carmen Paz; Arenas, Alex; Rada G., Gabriel
- ItemRole of Endobronchial Ultrasound-guided Transbronchial Needle Aspiration in the Diagnosis and Management of Mediastinal Cyst(2020) Aravena León, Carlos Andrés; Patel, J.; Goyal, A.; Jaber, W.; Khemasuwan, D.; Machuzak, M.; Cicenia, J.; Gildea, T.; Sethi, S.; Mehta, A. C.; Almeida, F. A.
- ItemThe use of pretest probability increases the value of high-resolution CT in diagnosing usual interstitial pneumonia(2017) Brownell, Robert; Moua, Teng; Henry, Travis S.; Elicker, Brett M.; White, Darin; Vittinghoff, Eric; Jones, Kirk D.; Urisman, Anatoly; Aravena León, Carlos Andrés; Johannson, Keri A.
- ItemThe utility of endobronchial ultrasound-transbronchial needle aspiration in patients with suspected extra-pulmonary sarcoidosis without thoracic lymphadenopathy(2020) Aravena León, Carlos Andrés; Almeida, F. A.; Culver, D. A.; Ribeiro Neto, M. L.
- ItemUse of Mycophenolate Mofetil or Azathioprine for the Management of Chronic Hypersensitivity Pneumonitis(2017) Morisset, Julie; Johannson, Kerri A.; Vittinghoff, Eric; Aravena León, Carlos Andrés; Elicker, Brett M.; Jones, Kirk D.; Fell, Charlene D.; Manganas, Helene; Dubé, Bruno-Pierre; Wolters, Paul J.