[Endoscopic removal of ethmoid XXXX under navigation guidance].

@entity1 @entity86 @entity1181 @entity5
OBJECTIVE: To investigate the minimally-invasive ablation of @entity1181 of the ethmoid sinuses endonasally. METHODS: A retrospective analysis was done in 19 @entity1 (15 male, 4 female, aged between 14 - 67, medium 37) diagnosed as @entity1181 of ethmoid sinuses hospitalized from April 2005 to October 2009. All @entity1 underwent sixteen-detector row computed tomography scan and 3D reconstruction preoperatively. All underwent operation with the help of navigation system and nasal endoscope. RESULTS: The @entity1181 in all 19 @entity1 was removed successfully with endoscope and navigation system. Two open procedures (1 through superciliary arch incision and 1 through labiogingival incision) were performed to assist the removal of the @entity5 , 17 @entity5 were removed under endoscopic and navigation guidance. In 5 @entity1 whose @entity1181 was localized or with the diameter no more than 2 cm, these @entity1181 were removed endonasally with the help of navigation system. The @entity1181 in 2 @entity1 was found to have narrow basilar part and relatively dissociative were removed from oral cavity after abscisin the basilar part. The @entity1181 in 12 @entity1 were found to have basilar part connected with ante-meso skull base, lamina papyracea, orbital apex, cranialis opticus, fossa orbitalis bone, these @entity1181 were removed using electric drill with the guidance of navigation system. All @entity1 were followed up from 8 to 64 months, and were asymptomatic (1 @entity1 who suffered from amblyopia had the symptom disappeared, 2 @entity1 suffered from prosopo-eminence, 1 @entity1 was asymptomatic and 1 @entity1 was feeling better). Two @entity1 underwent removal of crista galli, 1 of them suffered from @entity86 , and recovered after endoscopic repairing procedure and iodoform gauze packing and recovered 15 days later. Two @entity1 who underwent removal of crista galli suffered from anosmia and never recovered after 9 and 26 months follow-up. One @entity1 with @entity1181 suffered from repeated crusting and abnormal odor, and recovered after nasal flushing. CONCLUSIONS: Endoscopic ablation of @entity1181 of the ethmoid sinuses with the guidance of navigation system is an accurate, secure, minimally-invasive procedure. @entity1181 on median line and localized in ethmoid sinus is an indication of this operation. Preoperative CT scan is a safeguard for an accurate operation.
