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Risk Factors for Adverse Events after Implantation of BCNU Wafers in High-grade Gliomas Michiharu YOSHIDA 1 , Shigeru YAMAGUCHI 1 , Yukitomo ISHI 1 , Shogo ENDO 1 , Hiroaki MOTEGI 1 , Hiroyuki KOBAYASHI 1 , Katsuyuki ASAOKA 2 , Yuuta KAMOSHIMA 3 , Shunsuke TERASAKA 1 , Kiyohiro HOUKIN 1 1Department of Neurosurgery, Graduate School of Medicine, Hokkaido University 2Department of Neurosurgery, Teine Keijinkai Medical Center 3Sapporo Azabu Neurosurgical Hospital Keyword: adverse event , BCNU wafers , cerebral edema , malignant glioma pp.603-610
Published Date 2015/7/10
DOI https://doi.org/10.11477/mf.1436203084
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 Background:In Japan, patients with malignant glioma have been treated with BCNU wafers(Gliadel®)since January 2013. Several adverse events(AEs)associated with implantation of BCNU wafers, including cerebral edema or cyst formation, are recognized. Here, we report a retrospective review of the experience with implantation of BCNU wafers in our institutions and our findings regarding the risk factors for the AEs.

 Methods:We reviewed the records of patients with malignant glioma who were implanted with BCNU wafers between April 2013 and September 2014. Their AEs were examined clinically and radiologically and evaluated according to Common Terminology Criteria for Adverse Events(CTCAE)grading. For investigating the association between risk factors and incidence of AEs, histological diagnosis, extent of resection, and period of BCNU wafers implantation surgery were selected as possible risk factors.

 Results:Twenty-one patients were included in this investigation. There were no associations among incidence of AEs and histological diagnosis or extent of tumor resection. However, regarding the period of BCNU wafers implantation, additional resection for newly diagnosed tumors and resection for recurrent tumors tended to increase the rate and severity of AEs, especially cerebral edema, compared to primary resection.

 Conclusion:In cases of BCNU wafers implantation, the incidence and degree of AEs might increase if additional resection for newly diagnosed tumors or resection for recurrent tumors is performed. Our investigation revealed that AEs associated with implantation of BCNU wafers tend to occur in the repeated glioma surgery.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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