Hope E E, Bodensteiner J B, Barnes P
Pediatrics. 1983 Sep;72(3):335-7.
A 16-year-old boy developed a left occipital lobe infarction after falling asleep with his head extended and rotated to the left. He was found to have an anomalous cerebrovascular system, in which the entire blood supply to the left occipital cortex derived from the right vertebral artery. It has been shown that vertebral artery flow can be compromised by physiologic degrees of extension of the neck and rotation of the head to the opposite side. To our knowledge, this is the only reported case of cerebral cortical infarction due to temporary arterial obstruction of the vertebral artery during physiologic hyperextension of the neck and rotation of the head. All previous cases attributed to this mechanism have been brainstem, cerebellar, or cervical spinal cord involvement with thrombosis of the vessel in question. Anomalies of the cerebrobasilar vascular system may place these individuals in jeopardy during otherwise harmless physical activities.
一名16岁男孩在头部向左伸展并旋转入睡后发生左枕叶梗死。他被发现存在异常脑血管系统，其中左枕叶皮质的全部血液供应来自右椎动脉。研究表明，颈部生理性伸展和头部向对侧旋转可使椎动脉血流受损。据我们所知，这是唯一一例因颈部生理性过度伸展和头部旋转导致椎动脉暂时阻塞而引起大脑皮质梗死的报道病例。此前所有归因于该机制的病例均为脑干、小脑或颈脊髓受累，且相关血管有血栓形成。脑基底血管系统异常可能使这些个体在原本无害的身体活动中处于危险之中。
