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H. Oizumi
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P1.13 - Radiology/Staging/Screening (ID 699)
- Event: WCLC 2017
- Type: Poster Session with Presenters Present
- Track: Radiology/Staging/Screening
- Presentations: 1
- Moderators:
- Coordinates: 10/16/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)
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P1.13-011c - A Study on the Prognosis of Hilar and Interpulmonary Lymph Nodes Patients with Pathologic T1N1M0 and T2N1M0 Disease in NSCLC (ID 8770)
09:30 - 09:30 | Author(s): H. Oizumi
- Abstract
Background:
Patients with N1 non-small cell lung carcinoma (NSCLC) represent a heterogeneous subgroups.we reviewed our previous cases of pT1N1M0 and pT2N1M0 NSCLC and the influence of the type of lymph node involvement on survival and recurrence was investigated.
Method:
A total of 106 consecutive patients who underwent complete tumor resection and mediastinal lymph nodes dissection for pT1N1M0 and pT2N1M0 NSCLC between 1981 and 2015 were retrospectively reviewed.
Result:
The overall 5-year survival of patients with T1-2N1M0 disease was 32.4%. the 5-year survival rate differed significantly according to the type of lymph node involvement. The 5-year survival rate for patients with hilar lymph node involvement, interpulmonary lymph node involvement was 50.2%, 30.1%,the survival curves of two groups had significant differences. In T1 patient, the 5-year survival rate for patients with hilar lymph node involvement, interpulmonary lymph node involvement was 46.2%, 30.1%. In T2 patient, the 5-year survival rate for patients with hilar lymph node involvement, interpulmonary lymph node involvement was 40%, 12%.
Conclusion:
In patients with N1 NSCLC, survival differs according to the type of lymph node involvement.patients with only inter-pulmonary lymph node involvement have a better prognosis, whereas patients with hilar lymph node involvement have a poorer prognosis. In T2 patients, hilar lymph node involvement represents poorer disease. Patients with pN1 disease represent a heterogeneous group that may be subdivided according to the level of the involved N1 station.
