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Establishing cervical vestibular evoked myogenic potential (cVEMP) normative data in Singapore school-aged children
Vernice Wen Min Lim1, Ivy Irish Dela Roca Serafico2, Tze Ling Kek2
1Audiology Program, Yong Loo Lin School of Medicine, National University of Singapore, Block MD 7, #03-12, 8 Medical Drive, 117596, Singapore.
Insights
This study establishes pediatric cervical vestibular evoked myogenic potential (cVEMP) normative data for Singaporean children and finds neck length significantly impacts cVEMP parameters like latency and amplitude.
Area of Science:
- Otolaryngology
- Neuroscience
- Pediatric Audiology
Background:
- Cervical Vestibular Evoked Myogenic Potential (cVEMP) is a key clinical vestibular assessment.
- Established pediatric cVEMP normative data is lacking for Singapore.
- The influence of neck length on cVEMP parameters requires further investigation.
Purpose of the Study:
- To establish normative cVEMP data for Singaporean school-aged children (6-12 years).
- To investigate the correlation between neck length and cVEMP parameters in this population.
Main Methods:
- 31 healthy children underwent cVEMP testing with 500 Hz tone bursts.
- Participants had normal auditory and vestibular profiles.
- Neck contraction was achieved via head elevation from a supine position.
Main Results:
- High response rates (98.4%-100%) were observed.
- Mean P1 latency: 13.96 ± 1.17 ms; Mean N1 latency: 21.50 ± 1.66 ms.
- Significant positive correlations were found between neck length and latencies, and negative correlation with corrected amplitude.
Conclusions:
- Pediatric cVEMP normative data for Singaporean children has been successfully established.
- Neck length is a significant factor influencing cVEMP latencies and amplitudes.
- These findings provide valuable reference data for clinical practice.
Objectives:
The Cervical Vestibular Evoked Myogenic Potential (cVEMP) is often employed in routine clinical practice as part of the vestibular test battery assessments. However, there is currently no well-established paediatric cVEMP normative data in Singapore. Additionally, limited literature has examined the relationship between neck length and cVEMP parameters. The main aims of this study are to 1) establish cVEMP normative data from Singaporean school-aged children aged 6-12 years old, and 2) examine if there is a significant correlation between neck length and cVEMP parameters.
Methods:
31 healthy children participated in this study. Every participant was screened to ensure that they had normal auditory and vestibular profiles before completing the cVEMP procedure, which involved 500 Hz tone burst through insertphones and head elevation from supine position as the method of neck contraction.
Results:
The response rate in 62 ears was 98.4% at 95 dBnHL and 100% at 100 dBnHL. The mean P1 and N1 latencies were 13.96 ± 1.17 m s and 21.50 ± 1.66 m s, with a mean corrected P1-N1 amplitude of 0.88 ± 0.34, and mean asymmetry ratio of 13 ± 10%. Median threshold was 80 dBnHL. Significant positive correlation between neck length and both P1, N1 latencies, and significant negative correlation between neck length and corrected P1-N1 amplitude were observed.
Conclusions:
cVEMP paediatric normative data has been established for Singaporean school-aged children. The study also confirmed that neck length did have a significant influence on both latencies and corrected amplitude.
