Browsing by Author "Boafo, N."
Now showing 1 - 3 of 3
Results Per Page
Sort Options
Item Hearing impairment among chronic kidney disease patients on haemodialysis at a tertiary hospital in Ghana(Ghana Medical Journal, 2019-09) Boateng, J.O.; Boafo, N.; Osafo, C.; Anim-Sampong, S.Background: Chronic kidney disease is a major public health challenge, globally. Inadequate excretion of metabolic waste products by the kidneys results in circulation of these toxic materials in the body. This can cause damage to tissues and organ systems including the auditory system which can lead to hearing loss. Aim: The study was aimed at determining the prevalence, degrees and types of hearing impairment among Chronic kidney disease patients on haemodialysis in Ghana. Methods: A case-control study involving 50 Chronic Kidney disease patients and 50 age and gender-matched control group was carried out at the Korle Bu Teaching Hospital (KBTH). A structured questionnaire was administered to obtain basic socio-demographic data and case history of the participants. Audiological assessment was performed using a test battery comprising otoscopy, tympanometry and pure tone audiometry in a soundproof booth. Results: Higher hearing thresholds were recorded across all the frequencies tested among the case group than the control group (p < 0.05) in both ears. Only sensorineural hearing loss was identified among the cases. The prevalence of hearing loss was 32% among the case group and 12% among the control group. No significant association was observed between hearing loss and duration of Chronic kidney disease (p = 0.16), gender of Chronic kidney disease patient and hearing loss (p = 0.88), and duration of Chronic kidney disease and degree of hearing loss (p=0.31). Conclusion: Our study showed that Chronic Kidney disease patients on haemodialysis are at higher risk of experiencing hearing loss.Item Prevalence of Hearing Loss among Sickle Cell Patients at the Korle-Bu Teaching Hospital(University of Ghana, 2015-07) Boakye-Akuffo, R.; Boafo, N.; Asare, G.A.; University of Ghana, College of Health Sciences School of Biomedical and Allied Health Sciences Department of Audiology, Speech and LanguageBackground: Sickle Cell Disease (SCD) is one of the commonest blood and genetic disorders in the world. It results when abnormal haemoglobin (Hb S, Hb C, Hb β-thalassemia) is found either in the homozygous or heterozygote state. Sickle cell disease causes painful vascular occlusion crisis, anoxia and ischaemia which sometimes lead to tissue or organ damage including the auditory system especially the blood rich cochlear. Damage to the auditory system eventually causes hearing loss. Aim: The study assessed the hearing status of the sickle cell disease patients reporting to the Adult Sickle Cell Clinic of the Korle-Bu Teaching hospital. Methods: A case control study involving 100 known genotyped sickle cell patients from the adult SCD Clinic at the Ghana Institute of Clinical Genetics, Korle-Bu Teaching hospital and age-matched 100 confirmed haemoglobin AA genotyped participants (staff and students of School of Biomedical and Allied Health Sciences, University of Ghana) constituted this study. Subjects were selected based on inclusion and exclusion criteria. A structured questionnaire was administered to obtain basic information on socio-demographic parameters and case history of the participants. Their hearing was assessed by pure tone audiometry in a sound treated booth. Results: A significant association between hearing status and hemoglobin genotype for air and bone conduction thresholds was observed. This was evidenced by relatively higher prevalence of hearing loss among participants with Hb SS and Hb SC genotypes (cases) compared to respondents with Hb AA genotype (control) at the respective tested frequencies. Conclusion: There is significant difference in hearing thresholds in persons living with SCD and the control group. Results from this study showed one type of loss (sensorineural hearing loss) among Ghanaian adult SCD patients. Likewise, the degree of hearing loss among the SCD patients ranged from mild to profound from 2000 Hz to 8000 Hz. Finally, sensorineural hearing loss presented more among the Hb SS genotype group than the Hb SC group. Keywords: Sickle cell disease, vascular occlusion, haemoglobin, haemolysis, hearing loss.Item Validity Assessments of Computerized Audiometry: A Case Involving the Kuduwave5000 Audiometer and the Acescreening Device(University of Ghana, 2014-07) Adjekum, R. N.; Sampong, S. A.; Boafo, N.Background: Technological progress in the construction of personal computers, has offered the possibility of conducting hearing tests with a computer program. Computerized audiometers can be designed for manual, automatic and self-administered hearing testing. Aim: The study investigated the validity of the ACEScreening device as a self-administered hearing screening test and the KUDUWave5000 audiometer as an automated diagnostic audiometer. Methods: The population for this study consisted of patients reporting to the audiology clinic in Korle Bu Teaching Hospital for hearing assessment and students of the College of Health Science, University of Ghana. Hundred subjects constituted the sample size. Subjects were selected based on an inclusion and exclusion criteria. The study was conducted at the audiology clinic in Korle Bu Teaching Hospital. Two laboratories with varying ambient noise were utilized. The first laboratory was a sound-treated booth (ambient noise < 40 dB). The second laboratory was a quiet office with an average ambient noise of 47.2 dB. The design employed for this study was a within subject experimental group design. Thus, each participant recruited into the study was tested with three audiometric equipments (a KUDUwave5000 audiometer in a quiet office, an ACEScreening device in a quiet office and a GSI 17 audiometer in a sound treated booth). Results: There was a significant strong positive correlation between the unmasked pure tone air-conduction thresholds obtained by the KUDUWave5000 Audiometer in a quiet office and the same experiment obtained with the GSI 17 audiometer in a sound-treated booth across the frequencies of 250, 500, 1000, 2000 and 8000 Hz for right and left ears. The mean differences revealed that the mean air-conduction hearing threshold difference between the GSI 17 audiometer and the KUDUwave5000 audiometer across each tested frequency for both right and left ears was less than 5dB. There was a significant moderate to strong positive correlation between the unmasked pure tone air-conduction thresholds obtained with the ACEScreening device in a quiet office and the same experiment obtained with the GSI 17 audiometer in a sound-treated booth across the frequencies of 250, 500, 1000, 2000 and 8000 Hz for right and left ears. The mean air-conduction hearing threshold differences between the GSI 17 audiometer and the ACEScreening device was less than 17 dB at 250 and 500 Hz and less than 10dB at 1000, 2000, 4000 and 8000 Hz. Conclusion: It is tenable that the ACEScreening device and the KUDUWave5000 can be used to conduct unmasked pure tone air conduction hearing test in a quiet office where the ambient noise is a little higher than the maximum permissible ambient noise levels for audiometric test environment.