alexa Endobronchial ultrasound-guided transbronchial needle biopsy for M1 staging of extrathoracic malignancies.
Pediatrics

Pediatrics

Journal of Pediatric Neurology and Medicine

Author(s): Tournoy KG, Govaerts E, Malfait T, Dooms C

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Abstract BACKGROUND: extrathoracic malignancies metastasize to the mediastinum and/or pulmonary hilum. Mediastinoscopy and thoracoscopy are standard to obtain tissue proof of metastatic spread but are invasive. Endobronchial ultrasound with real-time-guided transbronchial fine-needle aspiration (EBUS-TBNA) is a minimally invasive alternative for surgical staging of lung cancer. METHODS: we analysed the test characteristics of EBUS-TBNA in consecutive patients with a suspicion of mediastinal or hilar metastases of various extrathoracic malignancies. RESULTS: ninety-two patients with concurrent (n = 33) or previously diagnosed and treated (n = 59) extrathoracic malignancies were evaluated. EBUS-TBNA detected mediastinal or hilar metastatic spread in 52 patients (57\%) [metastasis of extrathoracic tumour in 40 (44\%) and second malignancies (lung cancer) in 12 (13\%)]. Subsequent surgical staging showed malignancy in another nine patients. With EBUS-TBNA, an alternate diagnosis was found in four. Sensitivity and negative predictive value for mediastinal or hilar metastatic spread were 85\% [95\% confidence interval (CI) 73-93] and 76\% (95\% CI 59-88). EBUS-TBNA prevented an invasive surgical procedure in 61\% of the patients. One patient had a respiratory arrest during EBUS-TBNA; abortion lead to full recovery without further intervention. CONCLUSIONS: EBUS-TBNA is a minimally invasive method for M staging of patients with extrathoracic malignancies to confirm mediastinal or hilar spread. EBUS-TBNA therefore may qualify as an alternative for surgical staging. This article was published in Ann Oncol and referenced in Journal of Pediatric Neurology and Medicine

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