期刊
LIFE-BASEL
卷 12, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/life12091363
关键词
adverse radiation effect; cavernous malformation; edema; linear accelerator; radiosurgery; rebleeding
资金
- Chang Gung Memorial Hospital [CORPG3M0051]
This study evaluated prognostic factors for post-radiosurgical rebleeding and focal edematous changes in patients with CCM. The results showed that higher dose and earlier treatment were associated with a lower rebleeding rate. The study demonstrated the efficacy of LINAC SRS in preventing CCM rebleeding.
Stereotactic radiosurgery (SRS) is generally considered a substitute for cranial cavernous malformations (CCMs). However, prognostic factors for post-radiosurgery CCM rebleeding and adverse radiation effects have not been well evaluated, and the effect of timing and optimal treatment remains controversial. Therefore, this study evaluated prognostic factors for post-radiosurgical rebleeding and focal edematous changes in 30 patients who developed symptomatic intracranial hemorrhage due to solitary non-brainstem CCM and received linear accelerator (LINAC) SRS in a single medical center from October 2002 to June 2018. An overall post-radiosurgical annual hemorrhage rate with 4.5% was determined in this study. In addition, a higher marginal dose of >1600 centigray and earlier LINAC SRS intervention were correlated with a significantly lower post-radiosurgical annual hemorrhage rate. A lesion size larger than 3 cm(3) and a coexisting developmental venous anomaly were significant risk factors for post-radiosurgical focal brain edema but mostly resulted in no symptoms and were temporary. This study demonstrated the efficacy of LINAC SRS in preventing CCM rebleeding and suggests that earlier radiosurgery treatment with a higher dose for non-brainstem symptomatic CCMs be considered.
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