Correlation between Adenoid Volume and Intratympanic Pressure Level and Degree of Mastiod Air Cell Pneumatization in Children at Pre-School Age

摘要

Objective: Studying correlation between adenoid volume and intratympanic pressure level and the degree of mastoid air cells pneumatization, clinically, audiologically and radiologically in children between (3-6^th) years. Background: Adenoid Hypertrophy and Eustachian tube dysfunction are considered causal factor for intratymanic pressure level changes. There are many methods to measure the size of adenoid as lateral soft tissue X-ray of nasopharynx and measuring the adenoid volume physically. Materials and method: This study was made as a prospective study performed on 40 children with adenoid hyperatrophy, that was diagnosed clinically, radiologically by lateral soft tissue x-ray of neck and physically. Intratympanic pressure level was measured audiologcally. Mastoid air cells pneumatization was assessed radiologically by computerized tomography of temporal bone from May 2014 till September 2016. Results: 57.5 % males and 42.5 % females with adenoid volume were estimated in ranges between 4-7 ml in all cases with mean ±SD 5.47±0.96. We found that 35 cases with mean adenoid volume "5.48±0.94" have well mastoid air cell pneumatization, and 5 cases with adenoid volume "5.40±1.19" have poorely air cell pneumatization, also we found 42 ears with mean adenoid volume "5.80±0.87" their tympanogram was type B and, 10 ears with mean adenoid volume "6.05±0.85" their tympanogram type c, 24 ears with mean adenoid volume "4.69±o.69" with tympanogram type A and 4 ears with mean adenoid volume "5.18±0.35" with tympanogram type As. p value was < 0.001. Conclusion: There is a significant correlation between increasing adenoid volume and changes in intratympanic pressure level, and there is no significant relation between mastoid air cells pneumatization and Adenoid volume.