Hearing loss and herpes simplex

Area of Science:

• Pediatrics
• Infectious Diseases
• Audiology

Background:

• Hearing impairment is a common disability in children.
• Identifying the specific etiological agents is crucial for effective prevention and treatment.
• Herpes simplex virus (HSV) is a known pathogen with potential neurological complications.

Purpose of the Study:

• To investigate the role of herpes simplex virus (HSV) infection in the etiology of hearing impairment among Saudi children.
• To determine the prevalence of HSV type 1 (HSV1) and HSV type 2 (HSV2) infections in children with hearing loss.
• To assess the association between HSV infection and the type and severity of hearing impairment.

Main Methods:

• A survey was conducted on 1054 Saudi children aged 12 months to 14 years.
• Children were categorized into 'at risk' and 'not at risk' groups based on laboratory evidence of HSV infection.
• Serological tests (IgM antibody detection) were performed to identify HSV1 and HSV2 infections.

Main Results:

• 8% (82/1054) of children tested positive for HSV1 IgM antibodies, and 0.8% (8/1054) tested positive for HSV2 IgM antibodies.
• 56% (46/82) of children with HSV1 infection presented with bilateral sensorineural hearing loss.
• One child with HSV2 infection had moderate bilateral sensorineural hearing loss. Hearing loss varied in severity (mild, moderate to severe, profound).

Conclusions:

• Herpes simplex virus type 1 infection is a significant contributor to hearing impairment in Saudi children.
• The study highlights the importance of considering HSV infection in the etiological diagnosis of pediatric hearing loss.
• Further research is warranted to understand the mechanisms of HSV-induced hearing impairment and develop targeted interventions.