Pre- and post-operative application of acoustic rhinometry in children with otitis media with effusion and with or without adenoid hypertrophy-a retrospective analysis

Publication date: December 2017
Source:International Journal of Pediatric Otorhinolaryngology, Volume 103
Author(s): Dan Lai, Gang Qin, Junmei Pu, Lu Liu, Yiying Yang
BackgroundThere is no standardized scheme for preoperative evaluation of adenoid hypertrophy or a consensus on surgical indications for adenoidectomy in children with otitis media with effusion (OME), especially for young children intolerant to nasal endoscopic assessment. The aim of this study was to evaluate the efficacy and reliability of acoustic rhinometry (AR) in evaluating benefits from adenoidectomy in children with OME.MethodChildren with OME who were scheduled for surgical intervention were reviewed and AR tests performed preoperatively and postoperatively. The patients were divided into two groups based on the surgical strategy (Group I: tympanostomy tube placement alone; Group II: tympanostomy tube placement plus adenoidectomy). Correlation and regression analyses were performed to assess the relationship between findings of AR and nasal endoscopy. AR parameters including minimal nasal cross-sectional area (MCA), and nasopharyngeal volume (NPV), as well as scores of subjective symptoms were obtained to evaluate the utility of AR pre- and post-surgery.ResultsSixty-five children aged 4–10 years who met the inclusion criteria were included. No significant differences in gender or age distribution were observed between Group I and Group II. MCA, as well as NPV significantly decreased in Group II when compared with Group I (p = 0.000). A significant inverse correlation was observed between NPV and choanal obstruction ratio in both groups I (r = -0.625, p < 0.001) and II (r = −0.570, p < 0.001). A significant difference between preoperative and postoperative NPV and subjective symptom scores was observed in group II after adenoidectomy (p = 0.000).ConclusionAR parameters showed a good clinical correlation with findings of nasal endoscopy and thus may be useful for evaluating candidacy for surgical adenoidectomy among children with OME, especially in whom preoperative nasal endoscopic examination is not feasible. Additionally, AR can reveal the changes occurring within the nasopharyngeal passage before and after adenoidectomy.



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