ABSTRACT
OBJECTIVE@#To observe anatomic structure of jugular foramen region by endoscope, to provide anatomic data for avoiding damnification in the surgery.@*METHOD@#We performed the retrolabyrinthine and retrosigmoid endoscopic surgery on 8 fomalin-fixed adult cadaver specimens and observed the structures of jugular foramen by endoscope and compared the different surgeries at the same time. We excised the calvarium and cereburm and exposured and observed the nerves and vessels. Moreover we measured the the distance from internal accoustic pore to glossopharyngeal and analyse the data by SPSS.@*RESULT@#All retrolabyrinthine endoscopic surgeries were performed successfully. Only 4 postsigmoid endoscopic surgeries were performed without damage of cerebellum which is the major obstacles. The distance from internal accoustic pore to glossopharyngeal was(8.26 ± 1.05) mm. About half of posterior inferior cerebellar arteries located to inboard of nerves.@*CONCLUSION@#The jugular foramen region endoscopic surgery can be performed successfully by retrolabyrinthine. The "lockhole" technology by retrosigmoid is more difficult for blocking of cerebella. The internal acoustic porus is a fixed structure of the cerebellopontine angleand a perfect landmark to the surgery.
Subject(s)
Adult , Humans , Cadaver , Endoscopy , Foramen Magnum , Jugular Veins , Temporal BoneABSTRACT
[ABSTRACT]OBJECTIVETo investigate the clinic significance of nasal septal swell body by observing and measuring it in the normal and deviated nasal septum on CT images.METHODSThe locations of the nasal septal swell bodies on horizontal CT images in 50 normal subjects and 30 patients with deviated nasal septum were studied, and their length, width and the thicknesses of the mucosa of the both sides were measured. The data were analyzed with SPSS.RESULTSSeptal swell bodies were observed in most of CT images. The swell body was fusiform and located anterior to the middle turbinate, with mean(SD) width of (10.30±1.27) mm and length of (31.35±5.18) mm. There no marked difference in thickness of the nasal septal swell body between two sides of the nasal septum in normal nasal septum, but the thickness of the nasal septal swell body in camber side was thicker than that in the other side of the deviate nasal septum.CONCLUSIONThe shape and location of spetal swell body suggests its potential capacity may be to alter the nasal airflow. Additional study is required for its clinical significance.
ABSTRACT
OBJECTIVE@#To estimate the value of endoscope on postlabyrinthine approach of cerebellopontine angle surgery.@*METHOD@#Transpostlabyrinthine endoscopic excision of glossopharyngeal nerve to treat 2 glossopharyngeal neuralgia patients. Observe the endoscopic eyespot and estimate the appliance and virtue of the surgery.@*RESULT@#The two patients both have satisfied outcomes and remained free of disease after surgical treatment. We got a wide eyespot from trigeminal to vagus nerve. The internal acoustic porous is a fixed structure of the cerebellopontine angle and it is also a perfect landmark during the surgery.@*CONCLUSION@#Endoscopic postlabyrinthine approach provides a shorter path to cerebellopontine angle and endoscope provides a unique way to explore the cerebellopontine angle and to identify the exact location of the pathological changes, including a multipoint of view. Complicated and skilled operation restricts the surgery.