Initial results of cyberknife treatment for recurrent previously irradiated head and neck cancer

Kengo Himei, Kuniaki Katsui, Atsushi Yoshida, Mitsuhiro Takemoto, Masahiro Kuroda, Susumu Kanazawa, Kengo Sato, Yoshimi Baba, Rie Omori, Mitsuhiro Inoue, Yoshio Hiraki

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Abstract

Purpose: To evaluate the efficacy of CyberKnife for recurrent previously irradiated head and neck cancer. Materials and Methods: Thirty-one patients with recurrent previously irradiated head and neck cancer were treated with a CyberKnife from July 1999 to March 2002 at Okayama Kyokuto Hospital were retrospectively studied. The accumulated dose was 28-80 Gy (median 60 Gy). The interval between CyberKnife treatment and previous radiotherapy was 0.4-429.5 months (median 16.3 months). Primary lesions were nasopharynx: 7, maxillary sinus: 6, tongue: 5, ethmoid sinus: 3, and others: 1. The pathology was squamous cell carcinoma: 25, adenoid cystic carcinoma: 4, and others: 2. Symptoms were pain: 8, and nasal bleeding: 2. The prescribed dose was 15.0-40.3 Gy (median 32.3 Gy) as for the marginal dose. Results: The response rate (CR+PR) and local control rate (CR+PR+NC) was 74% and 94% respectively. Pain disappeared for 4 cases, relief was obtained for 4 cases and no change for 2 cases and nasal bleeding disappeared for 2 cases for an improvement of symptoms. An adverse effects were observed as mucositis in 5 cases and neck swelling in one case. Conclusions: Prognosis of recurrent previously irradiated head and neck cancer was estimated as poor. Our early experience shows that CyberKnife is expected to be feasible treatment for recurrent previously irradiated head and neck cancer, and for the reduction adverse effects and maintenance of useful QOL for patients.

Original languageEnglish
Pages (from-to)139-144
Number of pages6
JournalJournal of JASTRO
Volume15
Issue number2
Publication statusPublished - Jun 2003

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Keywords

  • CyberKnife
  • Recurrent head and neck cancer
  • Reirrardiation
  • Stereotactic irradiation

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cancer Research

Cite this

Himei, K., Katsui, K., Yoshida, A., Takemoto, M., Kuroda, M., Kanazawa, S., Sato, K., Baba, Y., Omori, R., Inoue, M., & Hiraki, Y. (2003). Initial results of cyberknife treatment for recurrent previously irradiated head and neck cancer. Journal of JASTRO, 15(2), 139-144.