期刊
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
卷 110, 期 4, 页码 957-961出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ijrobp.2021.02.048
关键词
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Radiation recall phenomenon (RRP) is a rare acute inflammatory skin reaction that can occur in patients who have previously undergone radiation therapy, triggered by various chemotherapy agents. This report is the first to describe RRP after receiving the Pfizer-BioNTech COVID-19 vaccine. It is important to consider the potential risk of RRP in cancer patients undergoing radiation therapy with significant skin doses when receiving COVID-19 vaccinations.
Radiation recall phenomenon (RRP) is an uncommon, late occurring, acute inflammatory skin reaction that emerges in localized areas coincident with previously irradiated radiation therapy (RT) treatment fields. RRP has been known to be triggered by a number of chemotherapy agents. To the best of our knowledge, this report is the first description of RRP after administration of the Pfizer-BioNTech vaccine for COVID-19, or any other currently available vaccine against COVID-19. Acute skin reactions were observed in 2 RT patients with differing timelines of RT and vaccinations. In both cases however, the RRP presented within days of the patient receiving the second dose of vaccine. For each RT course, the treatment planning dosimetry of the radiation fields was compared with the area of the observable RRP. RRP developed within the borders of treatment fields where prescription dose constraints were prioritized over skin sparing. Our observation is currently limited to 2 patients. The actual incidence of RRP in conjunction with Pfizer-BioNTech vaccine or any other vaccine against COVID-19 is unknown. For patients with cancer being treated with radiation with significant dose to skin, consideration should be given to the probability of RRP side effects from vaccinations against COVID-19. (C) 2021 Elsevier Inc. All rights reserved.
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