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Hypovitaminosis D and risk factors in pediatric epilepsy children
Napakjira Likasitthananon1, Charcrin Nabangchang1, Thitiwan Simasathien1
1Neurology Division, Department of Pediatrics, Phramongkutklao Hospital, Bangkok, Thailand.
Insights
Pediatric epilepsy patients in Thailand have a high prevalence of vitamin D deficiency, with puberty and certain anti-seizure medications being key risk factors. Early detection and supplementation are crucial for preventing long-term bone health issues.
Area of Science:
- Pediatric Endocrinology
- Neurology
- Nutritional Science
Background:
- Anti-seizure medication (ASM) use is a known risk factor for vitamin D deficiency in epilepsy patients.
- While adult vitamin D deficiency in epilepsy is documented, pediatric cases are less studied.
- This study focuses on identifying hypovitaminosis D risk factors in Thai pediatric epilepsy patients.
Purpose of the Study:
- To determine the prevalence of vitamin D deficiency in pediatric epilepsy patients in Thailand.
- To identify specific risk factors associated with hypovitaminosis D in this population.
- To inform clinical practice regarding vitamin D monitoring and supplementation in children with epilepsy.
Main Methods:
- A cross-sectional retrospective cohort study of 138 pediatric epilepsy patients was conducted.
- Data on demographics, seizure types, puberty, physical activity, and ASM use were analyzed.
- Exclusion criteria included abnormal liver/renal function and vitamin D supplementation; serum 25(OH)D levels were measured.
Main Results:
- The prevalence of vitamin D deficiency was 23.2% and insufficiency was 47.8% among the 138 subjects.
- Multivariate analysis identified puberty status (OR 5.43) and non-enzyme-inhibiting ASM therapy (OR 3.58) as significant risk factors for hypovitaminosis D.
- The mean serum 25(OH)D level was 26.56 ng/ml.
Conclusions:
- A high prevalence of hypovitaminosis D exists in Thai pediatric epilepsy patients, even in a tropical region.
- Clinicians should monitor vitamin D levels in pediatric epilepsy patients, especially during puberty and when using non-enzyme-inhibiting ASMs.
- Prompt vitamin D assessment and supplementation can mitigate risks of fractures and osteoporosis.
Background:
Anti-seizure medication (ASM) treatment is one of the significant risk factors associated with abnormal vitamin D status in epilepsy patients. Multiple studies have shown that adult epilepsy patients can exhibit vitamin D deficiency. However, there are few reports investigating pediatric epilepsy patients. In this study, we aimed to identify risk factors related to hypovitaminosis D in pediatric epilepsy patients in Thailand.
Methods:
A cross-sectional retrospective cohort study was conducted in 138 pediatric epilepsy patients who received anticonvulsants from April 2018 to January 2019. Demographic data, seizure types, puberty status, physical activity, duration, and types of anti-seizure medications were analyzed. Patients with abnormal liver function, abnormal renal function, and who received vitamin D supplements or ketogenic diet containing vitamin D were excluded. Levels of serum vitamin D (25(OH)D) were measured.
Results:
All 138 subjects were enrolled, the age ranged from 1.04 - 19.96 years; (mean = 9.65 ± 5.09), the mean serum 25(OH) D level was 26.56 ± 9.67 ng/ml. The prevalence of vitamin D deficiency was 23.2% and insufficiency was 47.8% respectively. Two risk factors-puberty status (OR 5.43, 95% CI 1.879-15.67) and non-enzyme-inhibiting ASMs therapy (OR 3.58, 95% CI 1.117-11.46)-were significantly associated with hypovitaminosis D, as shown by multivariate analyses.
Conclusions:
Our study reports the high prevalence of hypovitaminosis D in pediatric epilepsy patients in Thailand despite being located in the tropical zone. These findings can guide clinicians to measure vitamin D status in pediatric epilepsy patients particularly when they reach puberty and/or are using non-enzyme-inhibiting ASMs therapy. Early detection of vitamin D status and prompt vitamin D supplementation can prevent fractures and osteoporosis later in life.
Trial Registration:
TCTR20210215005 ( http://www.clinicaltrials.in.th/ ).
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