摘要
目的探讨下丘脑、垂体柄和神经垂体的穿动脉的显微解剖,为减少术后中枢性尿崩症提供解剖学依据。方法借助手术显微镜观察20例成人尸头标本的第三脑室前部、垂体柄和神经垂体的穿动脉的显微解剖关系。结果室旁核和视上核的血供来自于前交通动脉的穿支,该区域自外下部的血供主要来自后交通动脉的穿支;垂体柄的血供来自于垂体上动脉;神经垂体的血供来自垂体下动脉。结论与中枢性尿崩症相关的穿动脉可分为3组:(1)前组:主要来自前交通动脉附近发出的穿动脉;(2)外侧组:来自颈内动脉床突上段和后交通动脉发出的穿动脉;(3)下组:发自颈内动脉海绵窦段的垂体下动脉。了解这些血管的分布,可减少在鞍区肿瘤手术时对这些血管的损伤,避免中枢性尿崩症的发生。
Objective To study the microvascular anatomy of the perforating arteries in the hypothalamus, pituitary stalk and neurohypophysis with aim of offering some anatomical reference to prevent the central diabetes insipidus after surgery. Methods The anatomical constructions of the branches on the hypothalamus, pituitary stalk and neurohypophysis in 20 adult cadaver brains were studied under a surgical microscopy. Results The perforating arteries on the anterior part of the third ventricle arose from the anterior communicating artery, and the under-extemal perforating artery in this region arose from posterior communicating artery. The blood supply of pituitary stalk came from superior hypophyseal artery, while the blood supply of neurohypophysis came from inferior hypophyseal artery. Conclusion The perforating artery associated with the central diabetes insipidus can be divided into these parts： （1） anterior part： the perforating artery arise from around the anterior communicating artery; （2） lateral part： the perforating artery arise from superior clinoid process segment of intemal carotiod artery and posterior communicating artery; （3） inferior part： these branches originate from the cavemous sinus segment of intemal carotiod artery. Identification and preservation of these perforating arteries can decrease the risk of the central diabetes insipidus appearance during operation on sellar tumor.
出处
《中华神经医学杂志》
CAS
CSCD
2005年第9期914-917,共4页
Chinese Journal of Neuromedicine
关键词
第三脑室
下丘脑
垂体柄
垂体
后叶
穿动脉
Third ventricle
Hypothalamus
Pituitary stalk
Pituitary gland, posterior
Perforating arteries
