Induction chemoradiation is associated with improved survival in chest wall invasion lung cancer

Juan A Muñoz-Largacha, Sowmya R Rao, Laurence H Brinckerhoff, Benedict D Daly, Hiran C Fernando, Virginia R Litle, Kei Suzuki
Tumori 2019 March 25, : 300891619839283

OBJECTIVE: To determine if induction chemotherapy with concurrent high-dose radiation followed by resection is associated with improved survival in patients with nonsuperior sulcus lung cancer with chest wall invasion.

METHODS: We performed a retrospective review of clinical T3 (chest wall invasion) N0/N1 patients with non-small cell lung cancer who underwent surgical resection between January 1, 1992, and January 31, 2017. Exclusion criteria included superior sulcus tumors and resection performed for palliation/recurrence. Patients undergoing induction chemoradiation followed by surgical resection were compared to those undergoing resection first or those receiving induction radiation followed by resection. Overall survival was calculated using the Kaplan-Meier method.

RESULTS: Thirty-four patients were included in the analysis, with 5-year overall survival (OS) of 30%. By clinical stage, 31 (91%) were IIB (T3N0) and 3 (9%) were IIIA (T3N1). Sixteen patients (47%) received induction chemoradiation before surgery. Of the remaining 18 patients, 5 (15%) received induction radiation followed by surgery, and 13 (38%) underwent surgery as the first treatment. Three patients belonging to the group not receiving induction chemoradiation died within 30 days after surgery and were excluded from survival analysis. In the remaining 31 patients, induction chemoradiation was associated with improved 5-year OS (53% for induction chemoradiation vs 7% for others; P<0.01). Disease recurrence was evident in 9 cases, 2 (12.5%) in the induction chemoradiation group and 7 (46.6%) in the others (median disease-free time 103.0 months for induction chemoradiation group vs 8.0 months for others; P<0.01).

CONCLUSION: In patients with nonsuperior sulcus lung cancer with chest wall invasion, induction chemoradiation therapy followed by resection is associated with improved OS.


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