Anatomical study of the lateral ventricle and choroid plexus in endoscopic surgery through the occipital horn approach
10.3760/cma.j.issn.1671-8925.2009.08.013
- VernacularTitle:侧脑室后角入路脉络丛神经内镜手术的相关解剖学研究
- Author:
Wu-Qiang CHE
1
;
Yu-Ping PENG
;
Xi-An ZHANG
;
Song-Tao QI
Author Information
1. 南方医科大学南方医院
- Keywords:
Hydrocephalus;
Choroid plexus;
Neuroendoscopy;
Local anatomy
- From:
Chinese Journal of Neuromedicine
2009;8(8):806-809
- CountryChina
- Language:Chinese
-
Abstract:
Objective To provide an anatomical basis for endoscopic surgery of lateral ventricular choroid plexus. Methods Eight formalin-fixed adult human head specimens (16 sides) were observed for the morphologies of the choroid plexus and the distribution of the supplying arteries. The distances from the margin of the choroid plexus to the midline of brain and the diameter of choroid vessels were measured, and the location of optimal puncture point for endoscopic transoccippital surgery was determined. Results Measurements showed that the lateral ventricular choroid plexus was located mostly in the triangular region and the temporal horn of the lateral ventricle. The distances from the ehoroid point, temporal protruding point, and frontal horn to the midline of the brain were 25.6±2.0 mm, 32.2±1.1 mm, and 29.1+1.3 mm, respectively. The widths of the temporal choroid plexus, chorod glomuis and the body of the choroid plexus were significantly different [(6.40+0.64) mm vs (13.53±1.03) nun vs (3.70±0.59) ram, P<0.05]. Choroid plexus was supplied by the vessels from choroid fissure, and the choroid glomus was supplied by the lateral branch of the anterior choroid artery. The optimal puncture site for endoscopic transoccippital surgery should be 5 cm above the occipital protuberance and 3 cm lateral to the midline, and the puncture should be carried out in the direction of the collateral eye. Conclusion Endoscopic choroid plexus surgery through the optimal puncture point allows maximal treatment of the choroid plexus. The lateral branch of the anterior choroid artery can be safely severed without affecting the blood supply of the thalamus, subependyma or temporal lobe.
