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  • Title: [Surgery and combined therapy for non-small cell lung cancer with invasion of the mediastinal nodes. A retrospective study].
    Author: Arnau Obrer A, Martín Díaz E, Pérez Alonso D, Regueiro Mira F, Cañizares Carretero M, Cervera Juan A, Granell Gil M, Roch Tejerina S, Cantó Armengod A.
    Journal: Arch Bronconeumol; 2001 Apr; 37(4):160-5. PubMed ID: 11412499.
    Abstract:
    OBJECTIVE: To analyze the survival of patients classified N2M0 (N2 cytology/histology)with non-small cell lung cancer treated by surgical resection of the primary tumor, lymphadenectomy and neo-adjuvant therapy. PATIENTS AND METHODS: Among 1,043 consecutive patients with lung cancer treated between 1990 and 2000, 155 were classified N2M0 by histology. Of 130 patients undergoing thoracotomy, excision of the primary pulmonary tumor and lymphadenectomy were performed in 116. Among the 116 N2M0patients undergoing surgical resection, 23 were diagnosed N2c(c3)by mediastinoscopy and/or mediastinotomy and received induction chemotherapy (CT) with mitomycin/ifosfamide/cisplatin (3 cycles)and 93 were diagnosed N2pM0 after examination of samples of mediastinal lymph tissue taken during thoracotomy; for 19 of these patients,earlier surgical exploration of the mediastinum had been negative. The patient diagnosed N2p after thoracotomy also received CT and/or radiotherapy (RT). N2p patients who received induction CT also received RT. Those who were negative after lymphadenectomy and severely ill patients received no adjuvant therapy of any type. RESULTS: Mean survival of resected patients (23/49) diagnosed N2(C3) by mediastinoscopy/mediastinotomy and who received induction CT was 18 months. Survival at 1, 2 and 5 years was 80%, 45% and 30%, respectively. No postoperative deaths occurred in this group. One patient developed a bronchopleural fistula. Nine patients showed no signs of residual mediastinal node disease after lymphadenectomy. The mean survival of resected patients (93/106) diagnosed N2p after thoracotomy was 13 months and survival rates at 1, 2 and 5 years were 56%, 31% and 19%,respectively. Fourteen patients in this group died within 30 days of surgery. Nine patient developed bronchopleural fistulas. The difference in survival between the two groups was not significant. CONCLUSIONS: Histologic or cytologic confirmation of N2 disease can be considered to indicate poor prognosis. Standard, complete surgery with induction CT in selected patients improves survival for those diagnosed N2 upon thoracotomy, with no statistically significant differences.
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