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Published on: October 11, 2024
Hearing loss in children with sickle cell disease: A prospective French cohort study
Emilie Bois1, Martine Francois1, Malika Benkerrou2
1Otolaryngology-Head and Neck Surgery Department, Robert Debré Hospital, Paris, France.
Insights
Hearing loss affects over 11% of French children with sickle cell disease (SCD), necessitating regular audiological follow-up to manage potential complications.
Area of Science:
- Pediatrics
- Genetics
- Otolaryngology
Background:
- Sickle cell disease (SCD) is the most prevalent genetic disorder in France.
- SCD is linked to a high incidence of hearing loss in developing nations.
- The study investigates hearing loss prevalence in French children with SCD.
Purpose of the Study:
- To determine the prevalence of hearing loss in French children diagnosed with sickle cell disease.
- To assess the need for close audiological monitoring in pediatric SCD patients.
- To identify factors associated with hearing impairment in this population.
Main Methods:
- A single-center prospective cross-sectional study was conducted.
- Eighty-nine children with SCD (ages 5-19) underwent ENT examinations and hearing assessments.
- Data collected included SCD genotype, audiological thresholds, and clinical characteristics.
Main Results:
- 11.2% of children exhibited hearing thresholds above 20 dB.
- Causes included subnormal hearing, otitis media with effusion (OME), and sensorineural hearing loss.
- OME was associated with later SCD diagnosis, high platelet count, and low hematocrit; 12.4% reported tinnitus.
Conclusions:
- Multiple factors contribute to hearing loss in children with SCD.
- Regular audiological follow-up is crucial for early detection and management of hearing complications.
- Proactive monitoring can prevent complications from curable conditions and manage progressive hearing loss.
Background:
Sickle cell disease (SCD) is the most common genetic disease in France. In developing countries, it is associated with a high incidence of hearing loss. The aim of this study was to determine the prevalence of hearing loss in French children with SCD in order to determine if they need a close audiological follow-up.
Methods:
We performed a single-center prospective cross-sectional study of children with SCD. The children, without specific hearing symptom, underwent an ear, nose and throat examination with a hearing assessment between 2015 and 2016.
Results:
Eighty-nine children were included, aged from 5 to 19 years, with 73% of SS or Sβ0 genotype and 27% of SC or Sβ+ genotype. Ten children (11.2%) had hearing thresholds higher than 20 dB in at least one ear: one child with subnormal hearing, six otitis media with effusion (OME), and three sensorineural hearing loss. Late age at diagnosis of SCD, a high platelet count and a low hematocrit level were significantly associated with OME; moreover, children with OME had more severe clinical and biological characteristics than children with normal hearing. Furthermore, 12.4% of the children complained of tinnitus. The rate of sudden hearing loss was 2.2%. Finally, 7.1% of patients with normal hearing showed a speech discrimination disorder.
Conclusions:
Several causes were identified for hearing loss in children with SCD. They therefore need a close audiological follow-up in order to avoid complications due to curable phenomena and to enable appropriate management for progressive complications.
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