Murali R, Chandy M J, Rajshekhar V
Department of Neurological Sciences, Christian Medical College and Hospital, Vellore, India.
Br J Neurosurg. 1991;5(4):349-56. doi: 10.3109/02688699109002861.
The study describes the microsurgical neurovascular relationships of the root entry zone of lower cranial nerves in 23 cadavers. The vessel type, frequency of contact and site of contact on the root entry zone were analysed. Three types of vascular patterns (Types I-III) were found. Facial nerve: frequency of contact 31.8%; arterial contact 92.9%, Type I (lying across) 78.9%; anterior inferior cerebellar artery in 84.6%. Glossopharyngeal nerve: frequency of contact 23.9%; arteries 54.5%, veins 45.5%; posterior inferior cerebellar artery in 83.3% and Type II (loop) 50.1%. Vagus nerve: frequency of contact 26.1%, arteries 58.3%. Types II and III (passing through) formed 42.9% each. Hypoglossal nerve: frequency of contact 78.2%; vertebral artery 88.9%. No 'grooving' on any nerve was seen. Hence, 'contact' by a vessel at the root entry zone may not be significant in the etiology of lower cranial rhizopathies.
该研究描述了23具尸体中颅神经根部入区的显微外科神经血管关系。分析了血管类型、接触频率以及在根部入区的接触部位。发现了三种血管模式（I - III型）。面神经：接触频率为31.8%；动脉接触占92.9%，I型（横跨）占78.9%；84.6%的情况涉及小脑下前动脉。舌咽神经：接触频率为23.9%；动脉占54.5%，静脉占45.5%；83.3%涉及小脑下后动脉，II型（袢状）占50.1%。迷走神经：接触频率为26.1%，动脉占58.3%。II型和III型（穿过）各占42.9%。舌下神经：接触频率为78.2%；椎动脉占88.9%。未在任何神经上观察到“压迹”。因此，在颅神经根部入区血管的“接触”在低位颅神经病变的病因学中可能并不重要。
