• Seo Goo Han, Hongseok Yoo, Byung Woo Jhun, Hye Yun Park, Gee Young Suh, Man Pyo Chung, Hojoong Kim, O Jung Kwon, Joungho Han, and Sang-Won Um.
• Department of Medicine, Sungkyunkwan University School of Medicine, Korea.
• Intern. Med. 2013 Jan 1;52(17):1875-81.

ObjectiveObtaining an accurate histopathological diagnosis is mandatory for the optimal treatment of patients who are suspected of having recurrent lung cancer. The purpose of this retrospective study was to investigate the usefulness of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) for the diagnosis of recurrent non-small cell lung cancer (NSCLC) among patients who undergo curative surgical resection.MethodsConsecutive patients who underwent convex probe EBUS-TBNA for mediastinal or hilar lymph node and peribronchial lung parenchymal lesions between May 2009 and May 2011 were included. The diagnostic sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) were calculated on a per-lesion and per-patient basis.ResultsForty-two patients who were suspected of having recurrent NSCLC underwent EBUS-TBNA to assess 53 mediastinal and hilar lymph nodes and seven peribronchial lung parenchymal lesions. Among the 60 lesions, recurrence of malignancy was confirmed in 41 lesions on EBUS-TBNA (36 lymph nodes and five peribronchial lung lesions). On a per-lesion basis, the diagnostic sensitivity, specificity, accuracy, PPV and NPV of EBUS-TBNA for confirming recurrence were 95.3%, 100%, 96.6%, 100% and 88.9%, respectively. On a per-person basis, the diagnostic sensitivity, specificity, accuracy, PPV and NPV were 94.3%, 100%, 95.2%, 100% and 77.8%, respectively. No serious complications related to the procedures were observed.ConclusionConvex probe EBUS-TBNA is a sensitive method for diagnosing recurrent NSCLC in patients with lymph node and peribronchial lung parenchymal lesions. Therefore, EBUS-TBNA should be considered first for the cytopathological diagnosis of recurrent NSCLC.

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