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J Thorac Cardiovasc Surg. 2010 Aug;140(2):356-63. doi: 10.1016/j.jtcvs.2010.02.018. Epub 2010 Apr 9.

Which patients should be operated on after induction chemotherapy for N2 non-small cell lung cancer? Analysis of a 7-year experience in 175 patients.

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1
Department of Thoracic Surgery, Hotel Dieu Hospital, University of Paris V, Paris, France.

Abstract

OBJECTIVE:

The role of surgery in patients with N2 non-small cell lung cancer is debated. The aim of this study was to evaluate the results of surgical resection after induction chemotherapy.

METHODS:

We retrospectively reviewed the cases of patients with N2 non-small cell lung cancer who underwent neoadjuvant chemotherapy followed by resection between 2001 and 2007. They all had tumors deemed resectable.

RESULTS:

One hundred seventy-five patients entered the study. Most of them received 2 or 3 cycles of chemotherapy (81%), in all cases platinum-based regimens. Chemotherapy response rate was 62%. Operations included 96 lobectomies/bilobectomies and 79 pneumonectomies. Complete resection rate was 94%, and perioperative mortality was 4.5%. A pathologic mediastinal downstaging was found in 39% of patients. Overall median survival time and 5-year survival were 34.7 months and 30%, respectively. Survival was affected by clinical response (median survival time 51 months and 5-year survival 42% for responders versus 19 months and 10% for nonresponders) and by nodal downstaging (51 months and 45% versus 25% and 22%). In the group of responders, nondownstaged patients showed satisfying survival (median survival time 30 months, 5-year survival 30%). In the group of nonresponders, survival was unsatisfactory when a lobectomy was performed (median survival time 20 months, 5-year survival 13%) and poor in case of pneumonectomy (15 months and 6%). Multivariate analysis found 4 factors significantly affecting survival: clinical response, nodal downstaging, number of chemotherapy cycles, and histopathologic response.

CONCLUSIONS:

Surgery after chemotherapy could be effective for selected patients with N2 non-small cell lung cancer. Survival for responders is satisfactory, even in case of persistent N2 disease. Prognosis for nonresponders is disappointing.

PMID:
20381815
DOI:
10.1016/j.jtcvs.2010.02.018
[Indexed for MEDLINE]
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