[Evaluation of the curative effect of functional endoscopic sinus surgery by acoustic rhinometry].

Objective: To evaluate the curative effect of Functional endoscopic sinus surgery (FESS) who suffered with chronic rhinosinusitis by acoustic rhinometry.

Method: We collected 60 patients who accepted FESS for chronic rhinosinusitis, and calculated the mean minimal cross-sectional area (MCSA), nasal volume (NV), nasal airway resistance (NAR) by acoustic rhinometry within endoscopy to estimate the curative effect of FESS.

Result: Four weeks after FESS, the patients' ethmoid sinus,maxillary sinus,frontal sinus and sphenoid sinus were clear by endoscopy. Meanwhile, the mean MCSA and NV by acoustic rhinometry were increased, NAR by acoustic rhinometry were descended. There were significant differences between the quantitative levels before and 4 weeks after FESS.

Conclusion: As the determining methods of nasal function before and after FESS, acoustic rhinometry and endoscopy can be used to comprehensively evluate the curative effect of FESS.