The use of maxillary sinus endoscopy in the diagnosis of XXXX .

@entity1 @entity174 @entity235 @entity2694 @entity1410 @entity8924 @entity3137 @entity130
PURPOSE: The goal of the current study was to evaluate the ability to diagnose the presence of an inferior orbital wall @entity174 through the use of a transantral endoscopy technique at bedside. @entity1 AND METHODS: Seven @entity130 @entity1 with initial axial computed tomography (CT) scan findings consistent with an @entity8924 were studied. Before endoscopy, the @entity1 underwent a coronal CT scan with 3-mm cuts for later comparison with the endoscopic findings. The surgeon performing the endoscopy procedure was blinded to the results of the coronal CT scan. Visual acuity, intraocular pressure, and measurement for enophthalmos were performed before endoscopy. The endoscopic procedure was performed at the bedside using local anesthesia. A trocar was used in the @entity235 fossa to gain access to the maxillary sinus. A 30 degrees and then a 70 degrees endoscope were introduced through the trocar to evaluate the integrity of the orbital floor (ie, maxillary sinus roof). The degree of @entity3137 of the orbital floor and the presence of blood or orbital contents in the sinus were recorded. The ophthalmologic examination was repeated after completion of endoscopy. RESULTS: The endoscopic procedure was able to be completed in all @entity1 . There was no change in the ophthalmologic examination in any @entity1 as a result of endoscopy. In six of the seven @entity1 studied, the endoscopic findings correlated with the need for surgical intervention to repair the orbital floor predicted on the basis of coronal CT scan. This was determined by the degree of @entity2694 and the presence of @entity1410 , exposed bone, or fat. In the remaining case, endoscopy was not diagnostic for the presence of a @entity174 because only ecchymosis of the orbital floor was noted. CONCLUSIONS: The ability to perform endoscopy under local anesthesia at the bedside is useful in those @entity130 @entity1 whose concomitant injuries may prohibit other diagnostic modalities.
