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.

Characteristics of hearing loss in Dar es Salaam, Tanzania

Introduction: Hearing loss is a major public health problem in developed and developing countries. The objective of this study was to determine the causes and patterns of hearing loss at a private hospital that serves the largest number of patients with ear, nose and throat diseases in Tanzania's largest city. Method: This was a hospital based descriptive cross-sectional study that was conducted at a private hospital in Dar es Salaam. Data were collected from January to June 2021 and analysed using Statistical Package for Social Sciences (SPSS) version 20. P-value Results: Of the 250 patients recruited with hearing loss, there were 115 (46%) males and 135 (54%) females (F:M ratio of 1.2:1). The commonest cause of hearing loss was presbyacusis 132 (52.8%) followed by ototoxicity 26 (10.4%) and chronic suppurative otitis media 26(10.4%). Based on laterality, 73.2% of the patients had unilateral hearing loss whereas 26.8% had bilateral hearing loss. Regarding the type of hearing loss, 85.6% of the patients had sensorineural hearing loss followed by conductive type (13.2%) and mixed hearing loss (1.2%). Based on severity, 40.8% of the patients had moderate hearing loss followed by both moderately severe and severe hearing loss each accounting for 18% of cases Conclusion: Sensorineural hearing loss was the commonest type of hearing loss in this study. Both unilateral hearing loss according to laterality and moderate hearing loss upon classifying by severity predominated. Age related hearing loss was the most common cause of hearing loss followed by ototoxicity and chronic suppurative otitis media.

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