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. 2013 Sep;61(9):522-7.
doi: 10.1007/s11748-013-0263-z. Epub 2013 Jun 9.

Validation of EBUS-TBNA-integrated nodal staging in potentially node-positive non-small cell lung cancer

Yuichi Sakairi  1 , Hidehisa Hoshino, Taiki Fujiwara, Takahiro Nakajima, Kazuhiro Yasufuku, Shigetoshi Yoshida, Ichiro Yoshino
Affiliations

Validation of EBUS-TBNA-integrated nodal staging in potentially node-positive non-small cell lung cancer

Yuichi Sakairi et al. Gen Thorac Cardiovasc Surg. 2013 Sep.

Abstract

Objective: Nodal staging of lung cancer is important for selecting surgical candidates. Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) was evaluated as a modality for nodal staging of patients with potentially node-positive non-small cell lung cancer (NSCLC).

Methods: Endobronchial ultrasound-guided transbronchial needle aspiration was used for nodal staging of NSCLC patients with radiological N2/3 disease (short axis >10 mm on computed tomography and/or standardized positron emission uptake value >2.5 on 2-deoxy-2[F-18] fluoro-D-glucose positron emission tomography), T-stage ≥ T2, or positive serum carcinoembryonic antigen. Data on eligible patients were extracted from the database of our institution and analyzed for differences in nodal stages between radiological staging (RS) and EBUS-TBNA-integrated staging (ES), with validation by pathological staging of patients who had undergone surgery.

Results: Of 480 eligible patients, there were 135 N0/1 and 345 N2/3 patients according to RS. Out of the 345 patients staged as N2/3 by RS, 113 (33 %) were downgraded to N0/1 by ES. Out of the 135 patients staged as N0/1 by RS, 12 (9 %) were upgraded to N2/3 by ES. Patients were restaged as N0/1 in 236 cases and N2/3 in 244 cases by ES, and the distributions of nodal stage between RS and ES were significantly different (p < 0.001). Finally, 215 out of the 236 ES-N0/1 patients underwent lung resection, and 195 (90.7 %) and 20 patients were staged by pathology as N0/1 and N2, respectively.

Conclusions: Endobronchial ultrasound-guided transbronchial needle aspiration is more accurate for lymph node staging compared to radiological staging. EBUS-TBNA can identify patients who are true candidates for surgery.

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Figures

Fig. 1
Fig. 1
Differences in nodal stages determined by radiological, EBUS-TBNA-integrated, and surgical pathological staging
Fig. 2
Fig. 2
Strategy for identifying potentially resectable NSCLC. To more accurately determine N-stage, EBUS-TBNA was routinely performed in patients with radiologically node-positive disease or with a clinical status indicating potential for nodal metastasis. The modality is also applicable to the evaluation of treatment efficacy in potentially resectable N2 patients undergoing induction therapy
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