Patterns of care and treatment outcomes for local recurrence of NPC after definite IMRT-A study by the HKNPCSG

Head Neck. 2019 Oct;41(10):3661-3669. doi: 10.1002/hed.25892. Epub 2019 Jul 27.

Abstract

Background: This study evaluates the contemporary care for patients with locally recurrent nasopharyngeal carcinoma after failure of the primary course of intensity modulated radiotherapy.

Methods: Eligible patients were identified through the Hong Kong Cancer Registry database. Patterns of care and treatment outcomes were analyzed.

Results: Two hundred seventy-two patients with locally recurrent tumors were identified. Of them, 30.9% received surgery, whereas 35.7% received re-irradiation (re-RT). The 5-year overall survival (OS) for the whole group was 30.2%. Old age and advanced rT classification were adverse prognostic factors, whereas surgery (mainly in resectable recurrence) was associated with favorable survival outcome. The 5-year OS rates for patients who received surgery and re-RT were 56.3% and 21.8%, respectively.

Conclusions: Early detection of resectable recurrence is of paramount importance as surgery for resectable tumors offers the potential to achieve excellent outcomes. Re-RT could be considered in selected patients with unresectable disease and favorable prognostic features.

Keywords: local recurrence; nasopharyngeal carcinoma; reirradiation; salvage; surgery.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Cause of Death
  • Disease-Free Survival
  • Female
  • Hong Kong
  • Humans
  • Male
  • Middle Aged
  • Nasopharyngeal Carcinoma / mortality
  • Nasopharyngeal Carcinoma / pathology
  • Nasopharyngeal Carcinoma / radiotherapy*
  • Nasopharyngeal Neoplasms / mortality
  • Nasopharyngeal Neoplasms / pathology
  • Nasopharyngeal Neoplasms / radiotherapy*
  • Neoplasm Invasiveness / pathology
  • Neoplasm Recurrence, Local / mortality
  • Neoplasm Recurrence, Local / pathology
  • Neoplasm Recurrence, Local / radiotherapy*
  • Neoplasm Staging
  • Radiotherapy, Intensity-Modulated / adverse effects*
  • Radiotherapy, Intensity-Modulated / methods
  • Re-Irradiation / methods
  • Registries*
  • Salvage Therapy
  • Survival Analysis