Department of Radiation Oncology, University of Lübeck, Lübeck, Germany;
Department of Radiation Oncology, University of Lübeck, Lübeck, Germany.
Anticancer Res. 2023 Feb;43(2):823-830. doi: 10.21873/anticanres.16224.
BACKGROUND/AIM: Smoking and alcohol abuse may impair outcomes of chemoradiation for squamous cell head and neck cancer (SCCHN). Potential associations with toxicity, loco-regional control (LRC), and overall survival (OS) were investigated.
Ninety-six patients were retrospectively analyzed for impacts of pre-radiotherapy (pre-RT) smoking history, smoking during radiotherapy, and pre-RT alcohol abuse on toxicity, LRC, and OS.
A trend was found for associations between pre-RT smoking history and grade ≥2 dermatitis. Smoking during radiotherapy was significantly associated with grade ≥3 mucositis and showed trends regarding grade ≥2 mucositis and dermatitis. On univariate analyses, smoking during radiotherapy was negatively associated with LRC and OS, pre-RT alcohol abuse with OS, and >40 pack years with LRC and OS. In multivariate analyses, smoking during radiotherapy remained significant for decreased OS, and pack years showed a trend.
Smoking during radiotherapy was an independent predictor of OS and associated with increased toxicity. Thus, it is important to stop smoking prior to the start of radiotherapy.
背景/目的:吸烟和酗酒可能会影响头颈部鳞状细胞癌(SCCHN)的放化疗效果。本研究旨在调查其与毒性、局部区域控制(LRC)和总生存(OS)之间的潜在关联。
对 96 例患者进行回顾性分析,以评估放化疗前(pre-RT)吸烟史、放疗期间吸烟以及 pre-RT 酗酒对毒性、LRC 和 OS 的影响。
pre-RT 吸烟史与≥2 级皮炎之间存在相关性趋势。放疗期间吸烟与≥3 级黏膜炎显著相关,且与≥2 级黏膜炎和皮炎也存在相关性趋势。单因素分析显示,放疗期间吸烟与 LRC 和 OS 降低、pre-RT 酗酒与 OS 降低相关,而>40 包年与 LRC 和 OS 降低相关。多因素分析显示,放疗期间吸烟仍是 OS 降低的独立预测因子,且吸烟包年数也有一定的相关性。
放疗期间吸烟是 OS 的独立预测因子,且与毒性增加相关。因此,在开始放疗前戒烟非常重要。