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Potential value of vestibular evoked myogenic potentials in paediatric neuropathies
1Robert Debre Hospital, ORL Department, Vestibulometry Unit, Paris, France.
Insights
Vestibular evoked myogenic potentials (VEMPs) aid in detecting and monitoring pediatric neurological conditions like Guillain-Barre syndrome. This technique offers valuable insights into vestibulospinal pathways for early diagnosis and recovery tracking.
Area of Science:
- Neurology
- Otolaryngology
- Pediatrics
Background:
- Vestibular evoked myogenic potentials (VEMPs) are increasingly utilized in pediatric neurology.
- Standardized VEMP testing protocols allow for reliable data collection and comparison.
Observation:
- A 6-year-old child presented with progressive imbalance, prompting vestibular functional evaluation.
- Abnormal VEMP latencies were observed, suggesting a neurological etiology.
Findings:
- The VEMP findings, combined with neurological examination, pointed towards Guillain-Barre syndrome.
- VEMP testing facilitated the monitoring of neurological recovery in the patient.
Implications:
- VEMPs demonstrate significant potential in diagnosing and evaluating descending brainstem pathways in pediatric neuropathies.
- This technique serves as a valuable complement to traditional neurological assessments for conditions like Guillain-Barre syndrome.
Purpose:
Showing the interest of vestibular evoked myogenic potentials in paediatric neurological vestibulospinal pathology detection and followup.
Materials And Methods:
The vestibular evoked myogenic potentials testing apparatus presented is now commonly used in ENT clinics for patients from 1 month of age. Our system and protocol permits control to evoke and select the best EMG level and makes possible a comparison of data from different sides or level of stimulation or different sessions. Normal vestibular evoked myogenic potentials latencies obtained with tone bursts were remarkably stable (P: 13 +/- 0.8 ms, N: 19.6 +/- 1.6 ms). The reported case illustrates abnormal vestibular evoked myogenic potentials latencies in neuropathy.
Results:
A 6 y.o. child with progressive imbalance was referred to the ENT department for vestibular functional evaluation. Abnormally long latencies in the vestibular evoked myogenic potentials and neurological examination oriented the diagnosis towards Guillain-Barre syndrome and immediate referral to a neurology department. Vestibular evoked myogenic potentials also helped to monitor the neurological recovery.
Conclusion:
The present case shows the potential value of vestibular evoked myogenic potentials in diagnosis and evaluation of descending brainstem pathways in neuropathies like Guillain-Barre syndrome in complement to neurological evaluation.
