Treatment Outcomes of Oropharyngeal Cancer Patients Treated with Radiotherapy in Maharaj Nakhon Si Thammarat Hospital

Authors

  • Siriarrayapa Chachvarat Department of radiation, Maharaj Nakhon Si Thammarat Hospital

Keywords:

Oropharyngeal cancer, Radiotherapy, 2-year overall survival, Median Progression free survival

Abstract

Background: Oropharyngeal cancer (OPC) is the type of head and neck cancer (HNCs) consisting of cancer of the base of the tongue, the tonsils, soft palate, and posterior and lateral pharyngeal walls. The incidence of OPC is increasing globally, and radiotherapy remains as treatment cornerstone. Nevertheless, there is limited data regarding the efficacy of OPC treatment in Thailand.

Objective: To evaluate survival outcomes for patients with oropharyngeal carcinoma who were treated with radiation in Maharaj Nakhon Si Thammarat Hospital.

Material and Methods: The retrospective study was conducted, including patients with newly diagnosed oropharyngeal cancer treated with radiotherapy. The primary endpoint was the 2-year overall survival rate. Secondary endpoints were overall survival (OS) and median progression free survival (PFS), estimated by the Cox’s proportional hazard model.

Results: From January 2020 to December 2022, 67 patients with oropharyngeal cancer received radiotherapy. Sixty-five patients (97%) had squamous cell carcinoma; 95 % were male with a median age of 61. Stage IV disease were accounted for 58%, with 52 patients (78%) were treated with concurrent chemoradiation (CCRT).  The 2-year OS was 48 %. The median OS and PFS were 23.8 and 19.8 months. After treatment completion, 68% of patients had no tumor recurrence.

Conclusion: The survival outcome of patients with oropharyngeal cancer in Maharaj Nakhon Si Thammarat was comparable to other studies. Longer follow-up periods are needed to assess delayed benefit to radiotherapy.

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Published

2025-07-01

How to Cite

1.
Chachvarat S. Treatment Outcomes of Oropharyngeal Cancer Patients Treated with Radiotherapy in Maharaj Nakhon Si Thammarat Hospital. MNST Med J [internet]. 2025 Jul. 1 [cited 2025 Dec. 8];9(1):193-204. available from: https://he01.tci-thaijo.org/index.php/MNSTMedJ/article/view/280709