Efficacy of auditory evoked potential follow-up in viral meningitis of infants
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ORIGINAL ARTICLE
Efficacy of auditory evoked potential follow-up in viral meningitis of infants Howard Kim 1 & Mi Woon Kim 2 & Du Hyeon Nam 3 & Eun Young Kang 4 & Hoe Saeng Yang 5 Received: 19 March 2020 / Accepted: 16 April 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Purpose To examine the rate of occurrence of hearing impairments among the infants who had recovered from viral meningitis under 1 year of age through auditory evoked potential (AEP) test and to investigate the efficacy of the follow-up AEP test in viral meningitis infants. Methods Two hundred twenty infants (440 ears) were examined through AEP test once, and 47 (94 ears) of them went back for a second examination and were diagnosed with viral meningitis. The first AEP tests were compared with the second results in 47 infants. I latency, V latency, I–III interpeak latency (IPL), and III–V IPL were checked. Results In the first AEP test conducted on 440 ears, the average values of I and V latency and I–III IPL were delayed as compared with normal values. The second AEP results were conducted on 47 infants 92.36 days after the first exam. I latency and V latency of second exam were improved significantly (p < 0.05), but I–III and III–V IPL showed no significant changes. Two hearing impaired patients (4 ears) were confirmed through chart reviews. Conclusion The AEP test is a helpful study for early detection of hearing problem. However, in this study, AEP test was too sensitive in acute period, and later, the incidence rate of hearing impairment was relatively low. Therefore, age of onset, severity of neurologic symptom, and clinical examination must be considered before the AEP test. Keywords Auditory evoked potential . Hearing loss . Viral meningitis
Introduction Viral meningitis is an acute sensorineural disease, relatively common among infants. It is defined as the inflammation of meninges associated with an abnormal number of white blood
* Hoe Saeng Yang [email protected] 1
Department of Medicine, Graduate School, Dongguk University, Gyeongju, Gyeongsangbuk-do, Republic of Korea
2
Department of Anesthesiology and Pain Medicine, Dongguk University College of Medicine, Gyeongju, Gyeongsangbuk-do, Republic of Korea
3
Department of Rehabilitation Medicine, Sejong Geriatrics Hospital, Gwangju, Republic of Korea
4
Department of Rehabilitation Medicine, Kwangju Christian Hospital, Gwangju, Republic of Korea
5
Department of Obstetrics and Gynecology, Dongguk University College of Medicine, Gyeongju 87, Dongdae-ro, Gyeongju-si, Gyeongsangbuk-do 38067, Republic of Korea
cells in the cerebrospinal fluid. Recent studies suggest that the incidence of viral meningitis is approximately 300 per 100,000 infants under the age of 1 [1]. The primary symptoms of viral meningitis are characterized by fever or hypothermia (temperatures, however, can be normal), poor feeding, irritability or lethargy, seizures, rash (petechial, vesicular, macular, mucosal), tachypnea or apnea, jaundice, bulging fontanelle (late), vomiting or diar
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