Results of Endoscopic Endonasl Sinus Surgery in Maxillary Sinus:-Evaluation of CT Findiongs after Three Months Follow-up-

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Between April 1994 and October 1996, endoscopic endonasal sinus surgery (ESS) was performed on 55 patients in 95 sides of chronic sinusitis. We analyzed post-ESS results of maxillary sinus in the view of CT findings and Fontanelle opening degree after three months follow-up. ESS for maxillary sinus was performed with aspiration of retention pus and opening of Fontanelle sufficiently. In 95 sides that examined a CT improvement degree, adominant improvement case was 34 sides (35.8%) and an improvement case was 17 sides (17.9%). Animmutable or getting worse case of CT findings was recognized to 44 sides (46.3%) of about halves. The maxillary sinus pus pool was easily removed at the time of operation and leaded to an improvement of advaced such postoperative CT findings. The maxillary sinus pathological mucosal hypertrophy mainly influenced to opening degree of Fontanelle. Poor cases of a CT improvement degree were recognized to the case that complicates a bronchial asthma and has an advanced pathological mucosal hypertrophy. Since MRI is useful to get the evaluation of the volume and quality of a preoperative maxillary sinus shadow compared with CT, MRI is an essential examination for the prediction of a result of a postoperative maxillary shadow.
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