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Changes in non-surgical management of stage III non-small cell lung cancer at a single institution between 2003 and
Ellen J F van Reij1, Max Dahele, Peter M van de Ven
1Department of Radiation Oncology, VU University Medical Center , Amsterdam , The Netherlands.
Background:
Concurrent chemo-radiotherapy (CON-CRT) is recommended for selected patients with stage III non-small cell lung cancer (NSCLC), but utilization varies. We assessed the response to national guidelines introduced in 2004 and the impact on outcomes.
Material And Methods:
Retrospective study of stage III NSCLC patients treated with radical intent non-surgical treatment during 2003-2010 in a university medical center characterized by multidisciplinary assessment, routine use of four-dimensional computed tomography for radiotherapy planning, and rapid implementation of radiotherapy advances.
Results:
Between 2003 and 2010, 319/435 (73%) patients with stage III NSCLC received (chemo) radiotherapy. The number receiving CON-CRT in successive two-year periods increased from 13/48 (27%) - 40/80 (50%) - 63/90 (70%), to 74/101 (73%). Median overall survival (OS) from start of radiotherapy was 18.6 months for CON-CRT (190/319) and 17.4 months for sequential (SEQ), typically hypofractionated, CRT (90/319) (p = 0.78). Eleven months OS with radiotherapy alone (39/319) was significantly shorter (p = 0.006). OS did not differ between the four periods (p = 0.87). CON-CRT was not over-represented in the 16% of patients dying within five months of starting radiotherapy.
Conclusions:
Between 2003 and 2010, CON-CRT for stage III NSCLC was rapidly and safely increased. However, OS did not increase and, as practiced, did not differ between CON- or SEQ-CRT.