Zhang RN, Wu LP. Effect of tumor length, diameter and volume on survival of patients with stage N0 thoracic esophageal cancer after radiation therapy.
Shijie Huaren Xiaohua Zazhi 2014;
22:3815-3820. [DOI:
10.11569/wcjd.v22.i25.3815]
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Abstract
AIM: To investigate the effect of tumor length, diameter and volume on the survival of patients with stage N0 thoracic esophageal cancer after radiation therapy.
METHODS: Eighty-eight patients with stage N0 thoracic esophageal cancer who received radiation therapy from January 2007 to December 2008 at our hospital were included. The effect of the length, diameter and volume of gross tumor volume (GTV) on the short and long term survival after radiation therapy was analyzed.
RESULTS: The complete remission rate and 5-year survival rate were lower in the GTV length ≥ 5 cm group than in the < 5 cm group (14.29% vs 36.96%, 19.05% vs 43.48%). The complete remission rate and 5-year survival rate in the GTV diameter > 3 cm group were lower than those in the ≤ 3 cm group (16.00% vs 39.47%, 20.00% vs 47.37%). The complete remission rate and 5-year survival rate in the tumor volume ≥ 35 cm3 group were lower than those in the < 35 cm3 group (14.58% vs 40.00%, 20.83% vs 45.00%). Cox risk model analysis showed that tumor length and diameter were risk factors affecting survival in patients with stage N0 thoracic esophageal cancer.
CONCLUSION: GTV length, diameter and volume can affect survival in patients stage with N0 thoracic esophageal cancer after radiotherapy, and tumor length and diameter are independent risk factors for survival of the patients.
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