Abstract
The aim is to retrospectively evaluate the clinical outcomes and prognostic factors in patients of locally advanced nasopharyngeal cancer (NPC) treated with intensity-modulated radiotherapy (IMRT). The northeastern states report relatively more NPC cases in comparison to other states of India. This study is an attempt to assess the treatment outcomes and prognostic factors of locally advanced NPC who had been treated with definitive radiotherapy with or without chemotherapy in our institute from 2012 to 2016 using IMRT. This is a single institutional retrospective study. Thirty-one consecutive patients of locally advanced NPC treated with definitive chemoradiation using the IMRT technique between 2012 to 2016 were evaluated. The survival was analyzed using Kaplan–Meir method and their relations with various clinicopathologic parameters were compared. After a median follow-up time of 36 months, the 5-year overall survival (OS) and disease-free survival (DFS ) was 47.3% and 26.1% respectively. The younger patients of < 50 years had improved OS (p = 0.05). Patients of stage IVA had inferior 5-year OS (p = 0.1) and 5-years DFS (0.02) than those of stage III. The patients who received neoadjuvant chemotherapy showed improved DFS at 5 years (p = 0.09). The treatment-related toxicities were within acceptable limit. This retrospective analysis has reported outcomes of locally advanced NPC patients treated with IMRT with concurrent chemotherapy when IMRT was first introduced in our institute. This is the first of its kind from the Northeastern region of India.
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