Postoperative radiotherapy increases locoregional control of patients with stage IIIA non–small-cell lung cancer treated with induction chemotherapy followed by surgery

To determine the effectiveness of postoperative radiotherapy (RT) in patients with Stage IIB and Stage IIIA non–small-cell lung cancer (NSCLC) treated with induction chemotherapy followed by surgery. We retrospectively reviewed the treatment records of 98 patients (58 men and 40 women; median age 61...

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Veröffentlicht in:International journal of radiation oncology, biology, physics biology, physics, 2003-07, Vol.56 (3), p.616-625
Hauptverfasser: Taylor, N.A, Liao, Z.X, Stevens, C, Walsh, G, Roth, J, Putnam, J, Fossella, F, Allen, P, Cox, J.D, Komaki, R
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container_title International journal of radiation oncology, biology, physics
container_volume 56
creator Taylor, N.A
Liao, Z.X
Stevens, C
Walsh, G
Roth, J
Putnam, J
Fossella, F
Allen, P
Cox, J.D
Komaki, R
description To determine the effectiveness of postoperative radiotherapy (RT) in patients with Stage IIB and Stage IIIA non–small-cell lung cancer (NSCLC) treated with induction chemotherapy followed by surgery. We retrospectively reviewed the treatment records of 98 patients (58 men and 40 women; median age 61 years, range 31–91) with Stage IIB and Stage IIIA NSCLC who were treated with induction chemotherapy followed by surgery at our institution between January 1990 and December 2000. Patients were grouped by treatment (chemotherapy/surgery alone vs. chemotherapy/surgery/RT), by disease stage and nodal classification. The rates of local control (LC), disease-specific survival, disease-free survival, and overall survival (OS) were calculated using the Kaplan-Meier method. Of the 98 patients, 40 had Stage IIB and 58 had Stage IIIA. The clinical disease stage and N stage were significantly greater in those patients who underwent RT than in those who did not; however, no statistically significant differences were identified in the additional characteristics between those receiving and not receiving RT within each stage or nodal group. The overall 5-year actuarial LC rate was 81% in the RT group and 54% in the chemotherapy/surgery–alone group ( p = 0.07). Postoperative RT significantly improved the 5-year LC rate in patients with Stage IIIA disease (from 35% to 82%, p = 0.01). Postoperative RT did not significantly improve the 5-year OS rate (30% with RT vs. 49% without) for all patients or for patients with Stage IIIA disease. The disease-specific survival and disease-free survival rates did not differ between the treatment groups. Patients who responded to induction chemotherapy had a significantly greater 5-year OS rate (49%) than did those with stable or progressive disease (22%, p = 0.003). Postoperative RT in patients with Stage IIIA NSCLC treated with induction chemotherapy followed by surgery significantly improved LC without improving OS. Significantly improved survival was observed in all patients who responded to induction chemotherapy compared with those with stable or progressive disease.
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We retrospectively reviewed the treatment records of 98 patients (58 men and 40 women; median age 61 years, range 31–91) with Stage IIB and Stage IIIA NSCLC who were treated with induction chemotherapy followed by surgery at our institution between January 1990 and December 2000. Patients were grouped by treatment (chemotherapy/surgery alone vs. chemotherapy/surgery/RT), by disease stage and nodal classification. The rates of local control (LC), disease-specific survival, disease-free survival, and overall survival (OS) were calculated using the Kaplan-Meier method. Of the 98 patients, 40 had Stage IIB and 58 had Stage IIIA. The clinical disease stage and N stage were significantly greater in those patients who underwent RT than in those who did not; however, no statistically significant differences were identified in the additional characteristics between those receiving and not receiving RT within each stage or nodal group. The overall 5-year actuarial LC rate was 81% in the RT group and 54% in the chemotherapy/surgery–alone group ( p = 0.07). Postoperative RT significantly improved the 5-year LC rate in patients with Stage IIIA disease (from 35% to 82%, p = 0.01). Postoperative RT did not significantly improve the 5-year OS rate (30% with RT vs. 49% without) for all patients or for patients with Stage IIIA disease. The disease-specific survival and disease-free survival rates did not differ between the treatment groups. Patients who responded to induction chemotherapy had a significantly greater 5-year OS rate (49%) than did those with stable or progressive disease (22%, p = 0.003). Postoperative RT in patients with Stage IIIA NSCLC treated with induction chemotherapy followed by surgery significantly improved LC without improving OS. Significantly improved survival was observed in all patients who responded to induction chemotherapy compared with those with stable or progressive disease.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>12788166</pmid><doi>10.1016/S0360-3016(03)00063-4</doi><tpages>10</tpages></addata></record>
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subjects Adenocarcinoma - mortality
Adenocarcinoma - pathology
Adenocarcinoma - radiotherapy
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Carcinoma, Large Cell - mortality
Carcinoma, Large Cell - pathology
Carcinoma, Large Cell - radiotherapy
Carcinoma, Non-Small-Cell Lung - mortality
Carcinoma, Non-Small-Cell Lung - pathology
Carcinoma, Non-Small-Cell Lung - radiotherapy
Carcinoma, Squamous Cell - mortality
Carcinoma, Squamous Cell - pathology
Carcinoma, Squamous Cell - radiotherapy
Chemotherapy, Adjuvant
Combined Modality Therapy
Disease-Free Survival
Female
Humans
Induction chemotherapy
Lung Neoplasms - mortality
Lung Neoplasms - pathology
Lung Neoplasms - radiotherapy
Male
Medical sciences
Middle Aged
Neoplasm Staging
Non–small-cell lung cancer
Postoperative radiotherapy
Radiotherapy Dosage
Remission Induction
Retrospective Studies
Surgery
Survival Analysis
title Postoperative radiotherapy increases locoregional control of patients with stage IIIA non–small-cell lung cancer treated with induction chemotherapy followed by surgery
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