Affordable Access

deepdyve-link
Publisher Website

Use of intensity-modulated radiation therapy for nasopharyngeal cancer in Japan: analysis using a national database.

Authors
  • Rikitake, Ryoko1, 2
  • Tsukada, Yoichiro1
  • Ando, Mizuo2
  • Yoshida, Masafumi2
  • Iwamoto, Momoko1
  • Yamasoba, Tatsuya2
  • Higashi, Takahiro1
  • 1 Division of Health Services Research, Center for Cancer Control and Information Services, National Cancer Center, Tokyo, Japan. , (Japan)
  • 2 Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan. , (Japan)
Type
Published Article
Journal
Japanese Journal of Clinical Oncology
Publisher
Oxford University Press
Publication Date
Jul 01, 2019
Volume
49
Issue
7
Pages
639–645
Identifiers
DOI: 10.1093/jjco/hyz042
PMID: 31505652
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Intensity-modulated radiation therapy (IMRT) yields better outcomes and fewer toxicities for radiation therapy (RT) of head and neck cancers (HNCs), including nasopharyngeal cancer (NPC). IMRT is the standard RT treatment and has been widely adopted in Western countries to treat HNCs. However, its uptake in clinical practice among NPC patients has never been studied. We investigated the use of IMRT for NPC using data from a nationwide cancer registry to describe the use of IMRT among NPC patients in Japan. We analyzed the data of patients with HNC, including NPC, who underwent IMRT between 2012 and 2014, as recorded in the hospital-based cancer registries linked with insurance claims. We calculated the proportion of patients with NPC who underwent IMRT at each hospital. To evaluate the use of IMRT for NPC, the IMRT use for NPC was compared with the proportion of patients with prostate cancer who underwent IMRT. Among 508 patients with NPC who underwent RT at one of 87 hospitals, 348 (69%) underwent IMRT. This proportion gradually increased between 2012 and 2014 (62%, 64% and 77%). Meanwhile, 4790 patients with prostate cancer (90%) underwent IMRT. Although some hospitals where IMRT was performed treated many patients with NPC, the proportion of patients with NPC who were treated with IMRT was low. IMRT has not been widely adopted in Japan for treating NPC. Barriers for adopting its use should be identified to close the gap between the standard and actual medical practice in Japan. © The Author(s) 2019. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: [email protected]

Report this publication

Statistics

Seen <100 times