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  • Title: EUS-guided FNA immediately after unrevealing transbronchial needle aspiration in the evaluation of mediastinal lymphadenopathy: a prospective study.
    Author: Khoo KL, Ho KY, Nilsson B, Lim TK.
    Journal: Gastrointest Endosc; 2006 Feb; 63(2):215-20. PubMed ID: 16427923.
    Abstract:
    BACKGROUND: Transbronchial needle aspiration (TBNA) and EUS-guided FNA (EUS-FNA) are minimally invasive diagnostic approaches to mediastinal lymphadenopathy. Rapid on-site cytopathologic evaluation (ROSE) may facilitate the decision whether to proceed to a second procedure in the same session. The aim of this study was to determine the utility of TBNA with ROSE, combined with the option for immediate EUS-FNA in a single-session approach to mediastinal lymphadenopathy. METHODS: We prospectively recruited 20 patients (12 men; mean age 66.7 +/- 10.2 years) with mediastinal lymphadenopathy on CT who required cytopathologic evaluation. Bronchoscopy was first performed with TBNA and ROSE. If this was unrevealing, EUS-FNA was performed immediately afterward with ROSE. All procedures were performed with the patient under local anesthesia and sedation. RESULTS: TBNA specimens were deemed adequate on-site in 13 patients, and EUS-FNA was performed in the remaining 7 patients. TBNA with ROSE was falsely negative in one patient. The diagnostic yield for TBNA and EUS-FNA alone was 65% and 86%, respectively. This single-session approach provided a yield of 90%, with no complications. The final diagnoses were 12 non-small-cell lung cancer, two small-cell lung cancer, one metastatic adenocarcinoma, two sarcoidosis, one tuberculosis, one lymphoma, and one with no definitive diagnosis. CONCLUSIONS: Combining TBNA with the option for EUS-FNA immediately after unrevealing TBNA gave a yield approaching that of mediastinoscopy and, therefore, may reduce the need for invasive mediastinal sampling. This single-session endoscopic approach was safe, required only local anesthesia and sedation, was convenient, and obviated the need for patients to return for a second procedure.
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