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- W4384570734 abstract "Introduction: Deafness, is the most common neurosensory deficit in humans. The origins can be diverse: congenital or acquired and sometimes of an etiology that is difficult to specify. The main risk is social exclusion. The advent of cochlear implants is a solution of choice for severe to profound sensorineural hearing loss. This innovative therapeutic modality is new to Cameroon, so we proposed to evaluate the preliminary results of cochlear implantation at the General Hospitals of Yaoundé and Douala, by addressing the epidemiological, clinical and paraclinical, surgical, and prosthetic aspects. Methodology: We conducted a descriptive and prospective cross-sectional study over a period of two years and eight months, from January 2019 to 31 August 2021. The study sites were: the general hospitals of Yaounde and Douala, as well as the private practices of speech therapists in the said cities. We collected socio-demographic, clinical, paraclinical variables and data on surgical, prosthetic and speech therapy management which were processed. Results: We recruited 15 cochlear implant patients, one adult and 14 children. The sex ratio was 1.14 in favour of girls, the average age of the child population was 4.9 years and one subject was 57 years old. These children were mostly in school (85.7%) and mostly (86.7%) living in urban areas. The average period of sound deprivation was 3.9 years. The deafness of the children was 100% prelingual and the acquired cause was evoked in front of the risk factors (prematurity, low birth weight, neonatal asphyxia, jaundice, meningitis, neuromalaria) for 57.7% of them. The adult deafness was postlingual and post-traumatic. The associated clinical conditions found in 4 (26.8%) of the patients were an ocular refraction disorder, a chronic otitis media sequelae, cerebral palsy and minor head trauma injuries. There was no syndromic or malformative picture. The deafness was bilateral in all cases, asymmetric in 22.2% of cases and severe to profound sensorineural. The threshold of the deafness was deep in 78.6% of cases, with a more marked involvement on the right. Imaging studies (MRI and CT scans of the cranium, brain and rock) carried out in our series showed abnormalities in 4 (26.7%) of the children, but none of these abnormalities were an absolute contraindication to implantation. The surgical management was done with oticon® Neuro ZTI implants. Implantations were unilateral and mostly right, with one case of stenosis of the round window recess observed. The postoperative course was simple for 92.8% of patients. One case of superinfection of the surgical wound. The activations were performed within four to five weeks after surgery and the implant was functional in fourteen patients and dysfunction was observed in one patient. Conclusion: The cochlear implant is an effective solution in the fight against severe to profound sensorineural deafness. The diffusion of this therapeutic tool in our environment is still hampered by the youth of the teams, the lack of equipment and the insufficient financial means." @default.
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- W4384570734 date "2023-01-01" @default.
- W4384570734 modified "2023-10-01" @default.
- W4384570734 title "Preliminary Results of Cochlear Implantation in Underdeveloped Countries: The Experience of Cameroon" @default.
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- W4384570734 doi "https://doi.org/10.4236/ijohns.2023.124024" @default.
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