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  • Title: [A clinical study for improving the survival rate of pN2 lung cancer through our case of 53 patients].
    Author: Takahashi W, Okuwaki H, Yoshii S, Tada Y.
    Journal: Kyobu Geka; 1999 Oct; 52(11):906-10. PubMed ID: 10513154.
    Abstract:
    BACKGROUND: In management of non-small cell lung cancer, the evaluation and treatment of N2 disease has a lot of controversy. MATERIALS AND METHODS: Between 1983 and 1998, 53 patients of pN2 non-small cell lung cancer were operated by standard lymph node dissection method (R2) using CUSA system. We studied the sensitivity of the diagnosis of preoperative N factor, survival rate, and analysed the relationship between the postoperative mediastinal lymph node metastasis and the site of recurrence. RESULTS: Three-year and five-year survival rates for 53 cases were 46.8% and 33.4% respectivery. Preoperative sensitivity of CT scan for N factors were only 45% in squamous cell carcinoma and 24.2% in adenocarcinoma. Even with intraoperative findings, the sensitivity was not better. In a follow up survey, ipsilateral mediastinal lymph node recurrence was not detected, contralateral mediastinal lymph node recurrences were rare and the distant metastases were common cause of death. CONCLUSION: It is more important to accomplish the standard lymph node dissection completely in all cN cases than to evaluate the preoperative node stage aggressively using invasive methods.
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