Research Output

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Airway fibroepithelial polyposis

2017 , Gonzalo Labarca , CAVIEDES SOTO, IVAN RICARDO , Macarena R. Vial , Yumay Pires , Erik Folch , Adnan Majid , Sebastián, Fernandez-Bussy

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Primary mediastinal small cell melanoma achieved by EBUS-TBNA

2015 , Sebastian Fernandez-Bussy , Gonzalo Labarca , CASTRO MENDEZ, ALEX , CAVIEDES SOTO, IVAN RICARDO

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Bronchial Thermoplasty for Severe Asthma: Initial Experience in Chile

2016 , Sebastián Fernández-Bussy , Gonzalo Labarca , CAVIEDES SOTO, IVAN RICARDO , Erik Folch , Adnan Majid

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Diagnostic yield of endobronchial ultrasound-guided transbronchial needle aspiration for mediastinal staging in lung cancer

2015 , Sebastián Fernández-Bussy , Gonzalo Labarca , Sofia Canals , CAVIEDES SOTO, IVAN RICARDO , Erik Folch , Adnan Majid

OBJECTIVE: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive diagnostic test with a high diagnostic yield for suspicious central pulmonary lesions and for mediastinal lymph node staging. The main objective of this study was to describe the diagnostic yield of EBUS-TBNA for mediastinal lymph node staging in patients with suspected lung cancer. METHODS: Prospective study of patients undergoing EBUS-TBNA for diagnosis. Patients ≥ 18 years of age were recruited between July of 2010 and August of 2013. We recorded demographic variables, radiological characteristics provided by axial CT of the chest, location of the lesion in the mediastinum as per the International Association for the Study of Lung Cancer classification, and definitive diagnostic result (EBUS with a diagnostic biopsy or a definitive diagnostic method). RESULTS: Our analysis included 354 biopsies, from 145 patients. Of those 145 patients, 54.48% were male. The mean age was 63.75 years. The mean lymph node size was 15.03 mm, and 90 lymph nodes were smaller than 10.0 mm. The EBUS-TBNA method showed a sensitivity of 91.17%, a specificity of 100.0%, and a negative predictive value of 92.9%. The most common histological diagnosis was adenocarcinoma. CONCLUSIONS: EBUS-TBNA is a diagnostic tool that yields satisfactory results in the staging of neoplastic mediastinal lesions.

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Non-Answered Questions in Patients with Endobronchial Valve Placement for Lung Volume Reduction

2018 , CAVIEDES SOTO, IVAN RICARDO , Gonzalo Labarca , Hugo G. de Oliveira , Felix J.F. Herth , Sebastián, Fernandez-Bussy

Endoscopic lung volume reduction is a minimally invasive procedure performed to reduce the space occupied by the emphysemas’ lobes. This procedure has been demonstrated to be beneficial for patients with advanced chronic obstructive pulmonary disease and severe hyperinflation. The use of endobronchial valves is increasing, as well as the number of reports of adverse events. The most common complications after the procedure are a pneumothorax, bleeding, infections, the need for valve removal, and valve expulsion. We have recently treated a patient who achieved immediate left upper lobe atelectasis but developed a pneumothorax on the 6th day and near-fatal kinking of the left lower lobe bronchus. This patient had asphyctic episodes probably due to a functional left pneumonectomy. We should consider this unusual complication in patients undergoing endoscopic lung volume reduction whose condition worsens after achieving complete lobar atelectasis.

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Endobronchial ultrasound and fine needle aspiration for central airway lesions [Ultrasonografía bronquial con aspiración por aguja fina en el estudio lesiones adyacentes a la vía aérea central]

2016 , Sebastián Fernández-Bussy , Gonzalo Labarca , CAVIEDES SOTO, IVAN RICARDO , Erik Folch , Adnan Majid

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Endoscopic lung volume reduction in advanced pulmonary emphysema: initial experience in Chile

2017 , Sebastián FernÁndez-Bussy , Gonzalo Labarca , CAVIEDES SOTO, IVAN RICARDO , Hiren J Mehta , Michael Jantz , Adnan Majid

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Marijuana Use, Respiratory Symptoms, and Pulmonary Function

2019 , CAVIEDES SOTO, IVAN RICARDO , Gonzalo Labarca , CLAUDIO SERGIO SILVA FUENTE ALBA , Sebastian Fernandez-Bussy

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Molecular Testing of EGFR, EGFR Resistance Mutation, ALK and ROS1 Achieved by EBUS-TBNA in Chile [Análisis moleculares de EGFR, mutación de resistencia al EGFR, ALK y ROS1 en muestras obtenidas mediante PATB-USEB en Chile]

2017 , Sebastián Fernandez-Bussy , Gonzalo Labarca , Yumay Pires , CAVIEDES SOTO, IVAN RICARDO , Mauricio Burotto

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Utilidad del ultrasonido endobronquial para el diagnóstico y etapificación del cáncer pulmonar

2017 , Gonzalo Labarca , CAVIEDES SOTO, IVAN RICARDO , Erik Folch , Adnan Majid , Sebastián Fernández-Bussy