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Impaired brainstem auditory evoked potentials in patients with cystic fibrosis
N Vaisman1, E Tabachnik, E Shahar
1Paediatrics Department, Kaplan Hospital Rehovot, Israel.
Insights
Brainstem auditory evoked potentials (BAEPs) may reveal neurological issues in cystic fibrosis (CF) patients. Abnormal BAEPs suggest potential vitamin E deficiency, even with normal blood levels, aiding early neurological assessment in CF.
Area of Science:
- Neurology
- Pediatrics
- Clinical Neurophysiology
Background:
- Cystic Fibrosis (CF) can lead to neurological complications.
- Nutritional deficiencies, particularly Vitamin E and B6, are common in CF patients.
- Subtle neurological impairments may not be clinically apparent in young CF patients.
Purpose of the Study:
- To investigate the utility of Brainstem Auditory Evoked Potentials (BAEPs) in detecting neurological abnormalities in pediatric cystic fibrosis patients.
- To explore the potential link between abnormal BAEPs and nutritional deficiencies in CF.
Main Methods:
- Brainstem Auditory Evoked Potentials (BAEPs) were recorded in 11 young patients diagnosed with Cystic Fibrosis (CF).
- Clinical neurological examinations were performed to assess for overt neurological impairment.
- Nutritional status, including vitamin levels, was considered in the interpretation of results.
Main Results:
- All 11 pediatric CF patients exhibited abnormalities in their BAEP components.
- No patients showed clinical signs of neurological impairment.
- Abnormal BAEPs were hypothesized to be related to potential intracellular deficiencies of Vitamin E and B6.
Conclusions:
- Brainstem Auditory Evoked Potentials (BAEPs) may serve as a sensitive tool for early neurological evaluation in pediatric patients with Cystic Fibrosis (CF).
- The findings suggest that abnormal BAEPs could indicate subclinical neurological effects of prolonged intracellular Vitamin E deficiency in CF.
- BAEP testing may offer valuable insights into the neurological health of CF patients, complementing standard clinical assessments.
Abstract:
Brainstem auditory evoked potentials (BAEPs) were measured in 11 young patients with cystic fibrosis (CF). Though none had clinical evidence of neurological impairment, all had various abnormal components of brainstem auditory evoked potentials (BAEPs). Abnormal BAEPs may be attributed to nutritional deficiencies including deficiencies of vitamins E and B6. As patients with CF are often deficient in vitamin E despite daily supplementation and normal serum levels, the authors suggest that the abnormal BAEPs demonstrated in the present study may reflect prolonged intracellular vitamin E deficiency. This finding suggests that BAEP studies may be useful in the neurological evaluation of patients with CF.