放射性黏膜炎通常局限于放疗部位。与头颈其他部位相比,口腔和口咽部原发性恶性肿瘤患者通常更容易发生口腔黏膜炎。[5]Elting LS, Keefe DM, Sonis ST, et al. Patient-reported measurements of oral mucositis in head and neck cancer patients treated with radiotherapy with or without chemotherapy: demonstration of increased frequency, severity, resistance to palliation, and impact on quality of life. Cancer. 2008;113:2704-2713.http://www.ncbi.nlm.nih.gov/pubmed/18973181?tool=bestpractice.com黏膜炎的危险因素:有低质量的证据表明,与头颈其他部位(如喉部)相比,口腔和口咽部原发性恶性肿瘤患者通常更易出现口腔黏膜炎(相对危险度 = 44.5, 95%可信区间:5.2 ->100; P<0.001)。[5]Elting LS, Keefe DM, Sonis ST, et al. Patient-reported measurements of oral mucositis in head and neck cancer patients treated with radiotherapy with or without chemotherapy: demonstration of increased frequency, severity, resistance to palliation, and impact on quality of life. Cancer. 2008;113:2704-2713.http://www.ncbi.nlm.nih.gov/pubmed/18973181?tool=bestpractice.com低质量的观察性(队列)研究或者受试者<200名且方法学存在缺陷的随机对照临床试验(RCT)。放射性黏膜炎的严重程度取决于接受放疗的剂量和时间。大多数接受5000 cGy放疗剂量的患者会出现溃疡性黏膜炎,与接受传统放疗的患者相比,接受分割放疗的患者更易出现溃疡性黏膜炎。[5]Elting LS, Keefe DM, Sonis ST, et al. Patient-reported measurements of oral mucositis in head and neck cancer patients treated with radiotherapy with or without chemotherapy: demonstration of increased frequency, severity, resistance to palliation, and impact on quality of life. Cancer. 2008;113:2704-2713.http://www.ncbi.nlm.nih.gov/pubmed/18973181?tool=bestpractice.com黏膜炎的危险因素:有低质量的证据表明,与接受传统放疗的患者相比,接受分割放疗方案的患者更容易出现溃疡性黏膜炎(相对危险度 = 6.3, 95% 可信区间:1.1 to 35.1; P = 0.03)。[5]Elting LS, Keefe DM, Sonis ST, et al. Patient-reported measurements of oral mucositis in head and neck cancer patients treated with radiotherapy with or without chemotherapy: demonstration of increased frequency, severity, resistance to palliation, and impact on quality of life. Cancer. 2008;113:2704-2713.http://www.ncbi.nlm.nih.gov/pubmed/18973181?tool=bestpractice.com低质量的观察性(队列)研究或者受试者<200名且方法学存在缺陷的随机对照临床试验(RCT)。