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Intensity modulated proton therapy for early-stage glottic cancer: high-precision approach to laryngeal function preservation with exceptional treatment tolerability.
- Source :
-
Radiation Oncology . 12/5/2022, Vol. 17 Issue 1, p1-8. 8p. - Publication Year :
- 2022
-
Abstract
- <bold>Background: </bold>Due to the increasing expertise in transoral laser surgery and image-guided radiation therapy, treatment outcomes have recently improved in patients with early-stage glottic cancer. The objective of the current study was to evaluate intensity-modulated proton therapy (IMPT) as novel treatment option.<bold>Methods: </bold>A total of 15 patients with T1-2N0 glottic squamous cell carcinoma, treated between 2017 and 2020, were evaluated. Toxicity was recorded according to the Common Terminology Criteria for Adverse Events (CTCAE) v4.03.<bold>Results: </bold>The majority were T1a/b tumors (66.7%) and no patient had lymph node or distant metastases. The median total dose was 70 Gy relative biological effectiveness (RBE) (range 66-70 Gy RBE). The one- and two-year OS and metastases-free survival were 100%. One patient developed local failure and received salvage laryngectomy. No higher-grade acute or late toxicity was reported. The mean number of CTCAE grade I and II overall toxicity events per patient was 4.1 (95%-[confidence interval] CI 3.1-5.3) and 1.0 (95%-CI 0.5-1.5).<bold>Conclusion: </bold>High-precision proton therapy of T1-2N0 glottic cancer resulted in exceptional treatment tolerability with high rates of laryngeal function preservation and promising oncological outcome. IMPT has the potential to become a standard treatment option for patients with early-stage laryngeal cancer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1748717X
- Volume :
- 17
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Radiation Oncology
- Publication Type :
- Academic Journal
- Accession number :
- 160579556
- Full Text :
- https://doi.org/10.1186/s13014-022-02144-w