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Intracranial failure after hippocampal-avoidance prophylactic cranial irradiation in limited-stage small-cell lung cancer patients

Authors
 Yeona Cho  ;  Joongyo Lee  ;  Ik Jae Lee  ;  Jun Won Kim  ;  Jong Geol Baek  ;  Dong Min Jung  ;  Byoung Chul Cho  ;  Min Hee Hong  ;  Hye Ryun Kim  ;  Chang Geol Lee  ;  Hong In Yoon 
Citation
 SCIENTIFIC REPORTS, Vol.11(1) : 7435, 2021-04 
Journal Title
SCIENTIFIC REPORTS
Issue Date
2021-04
Abstract
We evaluated intracranial failure after hippocampus-avoidance-prophylactic cranial irradiation (HA-PCI) for limited-stage small-cell lung cancer (SCLC). Data of 106 patients who received PCI with 25 Gy were retrospectively reviewed. The patients were divided into two groups based on whether they underwent HA-PCI: the HA-PCI group (n = 48) and the conventional PCI (C-PCI) group (n = 58). Twenty-one patients experienced intracranial failure: 11 and 10 patients in the C-PCI and HA-PCI groups, respectively. Using the log-rank test, the intracranial failure rate was not significantly different between the groups (p = 0.215). No clinical factor was significantly associated with intracranial failure in multivariate Cox regression analysis, but HA-PCI tended to be associated with increased incidence of intracranial failure (HR 2.87, 95% CI 0.86-9.58, p = 0.087). Among patients who received HA-PCI, two developed peri-hippocampal recurrence. A higher thoracic radiotherapy dose (≥ 60 Gy) was significantly associated with DFS (HR 0.52, p = 0.048) and OS (HR 0.35, p = 0.003). However, HA-PCI was associated with neither DFS nor OS. Although HA-PCI may be associated with an increased risk of intracranial failure, HA-PCI did not impair disease control or survival. Future prospective randomized trials are needed to reach a definite conclusion.
Files in This Item:
T202102802.pdf Download
DOI
10.1038/s41598-021-86851-6
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jun Won(김준원) ORCID logo https://orcid.org/0000-0003-1358-364X
Kim, Hye Ryun(김혜련) ORCID logo https://orcid.org/0000-0002-1842-9070
Yoon, Hong In(윤홍인) ORCID logo https://orcid.org/0000-0002-2106-6856
Lee, Ik Jae(이익재) ORCID logo https://orcid.org/0000-0001-7165-3373
Lee, Joongyo(이준교)
Lee, Chang Geol(이창걸) ORCID logo https://orcid.org/0000-0002-8702-881X
Cho, Byoung Chul(조병철) ORCID logo https://orcid.org/0000-0002-5562-270X
Cho, Yeona(조연아) ORCID logo https://orcid.org/0000-0002-1202-0880
Hong, Min Hee(홍민희) ORCID logo https://orcid.org/0000-0003-3490-2195
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/184316
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