Interaction between vitamin D level, antiseizure medications (ASM) and seizure control in epilepsy adult patients - 02/12/23
Highlights |
• | In our series, it was observed that thirty-three percent of patients had vitamin D deficiency. |
• | The use of one ASM to control seizures is only efficient, according to the estimated model, when vitamin D is below the necessary levels. |
• | With satisfactory levels of vitamin D, the number of ASM used does not change the chance of control. |
• | It was observe an interaction between the number of drugs and vitamin D, with a change in the profile just below 40ng/mL (38.39ng/mL). |
• | The assessment of vitamin D levels should be included in the routine management of epilepsy patients. |
• | Vitamin D levels and intrinsic epilepsy factors are associated with failure to effectively control seizures. |
Abstract |
Objective |
To investigate vitamin D levels and factors associated with seizure control in adult patients with epilepsy (APE).
Method |
Cross-sectional study with APE in routine outpatient follow-up at a neurology clinic. Clinical variables, antiseizure medications (ASM) and vitamin D were investigated. Data were analyzed using the Chi2 or Fisher's exact tests, Mann-Whitney, Spearman's correlation coefficient, ROC curve and univariate and multiple logistic regression analysis.
Results |
Mean age was 46.5±15.1 years and disease duration was 27.5±17.0 years; 52.7% (n=49) of patients used one ASM and 47.3% (n=44) used≥2 ASM. There was a significant difference in the level of vitamin D according to the number of ASM and it was higher in patients who used a single ASM (26.02±10.22 versus 22.50±8.69; P=0.048). In the logistic regression, when vitamin D level was set at 20ng/mL, the chance of seizure control for patients using a single ASM was 6.99 times greater than for those using≥2 ASM. When vitamin D level was set at 40ng/mL, the number of ASM did not modify seizure control. There was no correlation between vitamin D and disease duration, patient age and age at the time of the first seizure. In the logistic regression, it was observed that satisfactory levels of vitamin D did not modify potential seizure control.
Conclusion |
Thirty-three percent (33%) of patients presented with vitamin D deficiency (values below 20ng/mL) and 80% had vitamin D levels below what is recommended (30ng/mL). The use of ASM, when associated with different levels of vitamin D, modified the probability of seizure control in APE. Vitamin D levels and intrinsic epilepsy factors are associated with failure to effectively control seizures.
Le texte complet de cet article est disponible en PDF.Keywords : Epilepsy, Use of antiseizure medications, Vitamin D, Seizure control
Plan
Vol 179 - N° 10
P. 1111-1117 - décembre 2023 Retour au numéro
Article précédent
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