Abstract
IntroductionPreliminary results of stereotactic radiotherapy (SRT) for spinal arteriovenous malformation (AVM) in five cases are presented. MethodsTwo cases were male and three were female. Their median age was 32 years (range: 23 to 54 years). The spinal intramedullary AVMs were located in the cervical spine in three and in the thoracic spine in two. SRT with 20 Gy in four fractions was delivered to the nidus in every case.ResultsAt the end of the median follow-up period of 5.5 years (range: 3 to 8.5 years), the neurological symptoms and signs were improved or unchanged as compared with before treatment, although a temporary adverse effect developed between a half year and one year after SRT in one case. The nidi were obliterated five and a half years after SRT in one case and three years after SRT in one. In the other three cases, the nidi were unchanged.ConclusionSRT with 20 Gy in four fractions was thought to be a safe treatment, though this study dealt with only a small number of patients with a short-term follow-up period.
Highlights
Preliminary results of stereotactic radiotherapy (SRT) for spinal arteriovenous malformation (AVM) in five cases are presented
At the end of the median follow-up period of 5.5 years, the neurological symptoms and signs were improved or unchanged as compared with before treatment, a temporary adverse effect developed between a half year and one year after SRT in one case
Those are performed effectively only when certain conditions are present, such as favorable location, size, and vascular anatomy allowing management [4,5]. It has been reported in many papers that cerebral AVMs can be effectively treated by stereotactic radiosurgery (SRS)/stereotactic radiotherapy (SRT) [6], only a few reports have documented the efficacy of SRS/SRT for spinal intramedullary AVMs [1, 5, 7,8,9,10]
Summary
Two cases were male and three were female. Their median age was 32 years (range: 23 to 54 years). The spinal intramedullary AVMs were located in the cervical spine in three and in the thoracic spine in two. SRT with 20 Gy in four fractions was delivered to the nidus in every case
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