Lee S K, Vilela P, Willinsky R, TerBrugge K G
Department of Medical Imaging, Toronto Western Hospital, Ontario, Canada.
Neuroradiology. 2002 Jan;44(1):11-6. doi: 10.1007/s002340100702.
Spontaneous regression of cerebral arteriovenous malformation (AVM) is rare and poorly understood. We reviewed the clinical and angiographic findings in patients who had spontaneous regression of cerebral AVMs to determine whether common features were present. The clinical and angiographic findings of four cases from our series and 29 cases from the literature were retrospectively reviewed. The clinical and angiographic features analyzed were: age at diagnosis, initial presentation, venous drainage pattern, number of draining veins, location of the AVM, number of arterial feeders, clinical events during the interval period to thrombosis, and interval period to spontaneous thrombosis. Common clinical and angiographic features of spontaneous regression of cerebral AVMs are: intracranial hemorrhage as an initial presentation, small AVMs, and a single draining vein. Spontaneous regression of cerebral AVMs can not be predicted by clinical or angiographic features, therefore it should not be considered as an option in cerebral AVM management, despite its proven occurrence.
脑动静脉畸形（AVM）的自然消退极为罕见，且人们对此了解甚少。我们回顾了脑AVM自然消退患者的临床及血管造影结果，以确定是否存在共同特征。对我们系列中的4例以及文献中的29例病例的临床和血管造影结果进行了回顾性分析。所分析的临床和血管造影特征包括：诊断时的年龄、初始表现、静脉引流模式、引流静脉数量、AVM的位置、动脉供血支数量、血栓形成间隔期的临床事件以及自然血栓形成的间隔期。脑AVM自然消退的常见临床和血管造影特征为：以颅内出血为初始表现、小型AVM以及单一引流静脉。脑AVM的自然消退无法通过临床或血管造影特征进行预测，因此，尽管已证实其存在，但在脑AVM的治疗中不应将其视为一种选择。
