期刊
CRITICAL REVIEWS IN ONCOLOGY HEMATOLOGY
卷 163, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.critrevonc.2021.103391
关键词
breast cancer; mastectomy; radiation therapy; post-mastectomy; PMRT; bolus; tissue compensator
The use of bolus in post mastectomy radiation therapy (PMRT) may increase the rate of acute grade 3 radiation dermatitis, but does not appear to significantly impact local recurrence rates compared to not using bolus. Further research is needed to determine the specific cases where bolus may be beneficial in PMRT.
Purpose: Post mastectomy radiation therapy (PMRT) reduces locoregional recurrence (LRR) and breast cancer mortality for selected patients. Bolus overcomes the skin-sparing effect of external-beam radiotherapy, ensuring adequate dose to superficial regions at risk of local recurrence (LR). This systematic review summarizes the current evidence regarding the impact of bolus on LR and acute toxicity in the setting of PMRT. Results: 27 studies were included. The use of bolus led to higher rates of acute grade 3 radiation dermatitis (pooled rates of 9.6% with bolus vs. 1.2% without). Pooled crude LR rates from thirteen studies (n = 3756) were similar with (3.5%) and without (3.6%) bolus. Conclusions: Bolus may be indicated in cases with a high risk of LR in the skin, but seems not to be necessary for all patients. Further work is needed to define the role of bolus in PMRT.
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