Objective

Brain arteriovenous malformation (BAVM) is defined as abnormal communication between cerebral of arteries and veins, without capillaries. Clinically, it may involve intracranial hemorrhage or seizures. Complete spontaneous resolution, known as BAVM disappearance, has been reported in rare cases.

Methods

We retrospectively collated all cases of BAVM in Lille University Hospital, from 2005 to 2018, and identified all cases of spontaneous BAVM disappearance on angiography (nidus and early venous drainage).

Results

There were 4 cases of spontaneous BAVM disappearance, in 3573 patients: i.e., prevalence of 0.1%. Sex ratio was 2:2; ages ranged from 14 to 46 years; nidus size was generally small (< 20 mm); 3 of the 4 patients had superficial venous drainage. Revelation of BAVM was by hemorrhage in 3 cases and by seizure in 1. There were no cases of recanalization at 1 year's follow-up.

Conclusion

Spontaneous BAVM disappearance is rare. Associated factors may include small nidus, superficial venous drainage and hemorrhage.

中文翻译：

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脑动静脉畸形的自发消失：一个病例系列

客观的

脑动静脉畸形（BAVM）被定义为脑动脉和静脉之间的异常交流，没有毛细血管。临床上，它可能涉及颅内出血或癫痫发作。在极少数情况下报告了完全自发消退，称为 BAVM 消失。

方法

我们回顾性整理了里尔大学医院 2005 年至 2018 年的所有 BAVM 病例，并确定了所有在血管造影（病灶和早期静脉引流）中自发 BAVM 消失的病例。

结果

在 3573 名患者中有 4 例自发性 BAVM 消失：即患病率为 0.1%。性别比为2：2；年龄从 14 岁到 46 岁不等；病灶大小一般较小（<  20  mm）；4 例患者中有 3 例进行了浅静脉引流。BAVM 的显示是 3 例出血和 1 例癫痫发作。在 1 年的随访中没有再通病例。

结论

自发的 BAVM 消失是罕见的。相关因素可能包括小病灶、浅静脉引流和出血。