Results of long-term follow-up and changes in sequential angiographic findings on dural arteriovenous malformation of the cavernous region.
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An investigation of the long-term follow-up in 16 patients with dural arteriovenous malformations (DAVMs) of the cavernous region was conducted. The items examined included the clinical symptoms, angiographic findings on admission degree of AV shunting; number of draining pathways and nature of the management. These factors were compared with the period to alleviation. Further, the changes in the angiograms from onset to alleviation in 9 of the cases were examined.<BR>All subjects received alleviation over an average of 10 months from onset, and were observed for a mean of 34.8 months from alleviation. There were no recurrences during this period. The degree of AV shunting was estimated from the angiograms and classified into three groups. In 5 patients with low AV shunting, the period from onset to alleviation was 3 months and was significantly shorter than that of cases with more than moderate AV shunting (p<0.05). No relationship was observed between the number of draining pathways and the period from onset to alleviation. The non-treated group included 5 patients, and the treated group comprised 11 patients. The mean period from onset to alleviation in the treated group was 11.6 months, and was not significantly different from that in the non-treated cases (7.8 months). The treatments included cervical compression only (3 cases), cervical compression and transarterial embolization (3 cases), and cervical compression and radiation (5 cases). In 9 cases, the angiograms on admission and after alleviation were examined. Among them, AV shunting disappeared in 3 cases, was decreased in 1 case, and kept its original from in 5 cases. In 4 of the latter cases, draining pathways were developed.<BR>We speculate that the curative mechanism of DAVMs involves the disappearance of AV shunting or the development of draining pathways.
- 一般社団法人 日本脳卒中学会の論文
一般社団法人 日本脳卒中学会 | 論文
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