Prevalence of middle ear effusion among children with adenoid hypertrophy at a national referral hospital in Tanzania

Introduction: Middle ear effusion (MEE) is a common childhood disorder that causes hearing impairment due to the presence of fluid in the middle ear which reduces the middle ear's ability to conduct sound. Temporary or persistent hearing loss as a result of MEE causes speech, language and learning delays in children. There are few studies on MEE in Tanzania despite the huge burden of hearing loss among children with adenoid hypertrophy which is a known risk factor for MEE. Method: A cross-sectional study was conducted among 420 children aged nine years and below having adenoid hypertrophy with or without MEE. The diagnosis of adenoid hypertrophy was confirmed with a lateral view x-ray of the nasopharynx and tympanometry for cases with MEE. The primary objective of the study was to assess the prevalence of MEE among children with adenoid hypertrophy. Results: The prevalence of MEE among children with adenoid hypertrophy was 61.7%, with 218 (51.9%) males and 202 (48.1%) females. The most affected age group was 2-4 years with an incidence 193 (46%) and in this age group, males (53.9%) were more affected than females (46.1%). Generally, males, 134 (51.7%) were more affected by MEE than females, 125 (48.3%) of all 259 children with MEE. In terms of age group predominance by MEE, children aged 3-4 years, 107(41.3%) were more affected than all other age groups. Additionally, 4 (1.5%) children with MEE presented with hearing loss. Conclusion: There is a high prevalence of MEE among children with adenoid hypertrophy but no significant association with hearing loss.

Pattern and causes of tympanic membraneperforation at a private hospital in Dar es Salaam, Tanzania

Introduction: There is variation in the size, shape and position of tympanic membrane perforations; the degree of conductive hearing loss depends on the size and position of perforation.Objective: To determine the pattern and causes of tympanic membrane perforation at a private health facility in TanzaniaMethod: A hospital-based cross-sectional study in the ENT clinic at Ekenywa Specialised Hospital was conducted from January to May 2019. Ears were examined thoroughly by an Otorhinolaryngologist. Data were analysed using SPSS Version 21Results: Two hundred and fifty patients were examined and 50 (20%) were found to have tympanic membrane perforations. Thirty (60%) were new patients while twenty (40%) were under review. Most 35(70%) were males. Central perforation predominated in 30 (60%), followed by subtotal in 10 (20%), total in 8 (16%) and marginal perforations in 2 (4%). The left ear was more affected in (60%) than the right ear. Bilateral perforations accounted for 5 (10%) of cases. Chronic suppurative otitis media was found in 35 (70%); other causes were acute suppurative otitis media in 13 (26%) and trauma in 2 (4%) patientsConclusions: The clinical picture depicted in this study is similar to that found elsewhere. There is a need for prompt diagnosis of tympanic membrane perforation. Proper education on ear care in patients with perforated tympanic membrane is of paramount importance