Veness Michael
Department of Radiation Oncology, Westmead Cancer Care Centre, Westmead Hospital, University of Sydney, Sydney, New South Wales, Australia.
Australas J Dermatol. 2018 May;59(2):124-127. doi: 10.1111/ajd.12609. Epub 2017 Mar 9.
Radiotherapy is a non-surgical option for patients with non-melanoma skin cancer. Lesions in middle-aged to older patients with good performance status are typically prescribed 4-5 weeks of outpatient weekday treatment. Daily radiotherapy fraction sizes of 2-3 Gy are recommended to decrease the late cutaneous consequences such as in-field hypopigmentation and telangiectasia. In elderly, often unwell patients, these concerns are less of an issue and larger fraction sizes (5-7 Gy), referred to as hypofractionation, can be delivered over a shorter time yet still achieve excellent in-field control and improve a patient's quality of life and avoid the need for surgery. The three case studies presented illustrate this approach along with a review of the evidence to support this.
放射治疗是皮肤非黑色素瘤患者的一种非手术治疗选择。对于身体状况良好的中老年患者的病变,通常规定在工作日进行为期4 - 5周的门诊治疗。建议每日放射治疗分次剂量为2 - 3 Gy,以减少诸如野内色素减退和毛细血管扩张等晚期皮肤后果。在老年且通常身体不适的患者中,这些问题不那么突出,可以采用更大的分次剂量(5 - 7 Gy),即大分割放疗,在更短的时间内进行,仍可实现良好的野内控制,提高患者的生活质量并避免手术的需要。所呈现的三个案例研究说明了这种方法,并对支持这一方法的证据进行了综述。