Author of

• 11595

  +

  P2.07 - Poster Session 2 - Surgery (ID 190)

  • Event: WCLC 2013
  • Type: Poster Session
  • Track: Surgery
  • Presentations: 1
  • Moderators:
  • Coordinates: 10/29/2013, 09:30 - 16:30, Exhibit Hall, Ground Level

  • 11597

    +

    P2.07-002 - Sentinel node biopsy reduces the need for systematic mediastinal lymphadenectomy in stage IA NSCLC (ID 188)

    09:30 - 09:30  |  Author(s): N. Frleta Ilic
    • Abstract

    Background
    Systematic mediastinal lymphadenectomy is still essential for an adequate postoperative staging of NSCLC. We tried to investigate the controversial role of sentinel node biopsy (SNB) in early stage non small cell lung cancer (NSCLC) surgery

    Methods
    A total of 52 patients with clinical T1N0MO NSCLC underwent SN navigation lobectomy using Tc-99 labeled tin colloid followed by systematic mediastinal lymphadenectomy (SML) in two years time period (2010-2012). Mapping of the mediastinal lymph nodes by their number and station followed by histopathological evaluation was performed. Patients data were statistically analyzed.

    Results
    Intraoperative SN was identified in 45 (87%) of these patients with 92% of accuracy. We found lobe specific skip nodal metastases in 5 (10%) patients resulting in upstaging. The incidence of ML metastases seemed to be more often in adenocarcinoma patients (p<0.05), but skip nodal metastases showed higher rate in squamous cell carcinoma patients. Intraoperative frozen section was not confirmed accurate for detecting micrometastases in two (4%) patients. Operative time was prolonged for 10 (8-25) minutes showing no difference in complication rate.

    Conclusion
    Procedure showed absolute safety and high accuracy. Our results indicated that SN identification could reduce mediastinal lymph node dissection in early stage NSCLC. Further clinical studies should be carried out in order to prove that minimally invasive surgical procedures could be curative for T1N0MO NSCLC.