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Plasma magnesium and calcium levels in children with epilepsy in lagos
O O Oladipo1, F E A Lesi, V C Ezeaka
1Department of Clinical Pathology,College of Medicine, University of Lagos/ Lagos University Teaching Hospital, Idi-Araba, Lagos.
Insights
Nigerian children with epilepsy show lower serum magnesium and calcium levels compared to healthy children. These electrolyte imbalances may play a role in childhood epilepsy, warranting further investigation.
Area of Science:
- Neurology
- Clinical Chemistry
Background:
- Electrolyte imbalances, specifically hypomagnesaemia and hypocalcaemia, are implicated in neuronal hyperexcitability and seizures.
- These conditions have been linked to epilepsy in both adult and pediatric populations.
Purpose of the Study:
- To investigate the prevalence of hypomagnesaemia and hypocalcaemia in Nigerian children diagnosed with epilepsy.
- To explore the correlation between serum magnesium and calcium levels and the frequency and control of epilepsy in this cohort.
Main Methods:
- A prospective case-control study was conducted at the Lagos University Teaching Hospital.
- Forty-five children with epilepsy and 45 age-matched controls were enrolled.
- Serum magnesium and calcium levels were quantified using spectrophotometric methods.
Main Results:
- Epileptic children exhibited significantly lower serum magnesium (0.98 vs. 1.2 mmol/L, p<0.0001) and calcium (2.29 vs. 2.3 mmol/L, p<0.05) compared to controls.
- No significant differences were observed in plasma phosphorus or albumin concentrations between the groups.
Conclusions:
- Serum magnesium and calcium levels are reduced in Nigerian children with epilepsy during seizure-free intervals.
- Further research is recommended to examine electrolyte levels during active seizures and assess the impact of anticonvulsant medications.
Background:
Magnesium and calcium have been found to have increasing roles in the patho-physiology of epilepsy. Hypomagnesaemia and hypocalcaemia cause hyper-exitability of neurons and have been associated strongly with seizures in adults and children.
Objectives:
To determine if hypomagnesaemia or hypocalcaemia is present in Nigerian children with epilepsy and to determine the relationship between serum magnesium and calcium levels and frequency and control of epilepsy.
Design:
A prospective case control study at the Lagos University Teaching Hospital.
Patients And Methods:
45 children with epilepsy and 45 controls were recruited from the paediatric neurology unit of the Lagos University Teaching Hospital. Serum magnesium and calcium were measured by spectrophotometric methods.
Results:
Serum magnesium and calcium was significantly lower in the patients compared to the controls; Magnesium - 0.98 (0.0005) Vs 1.2 (0.04) mmol/L, p< 0.0001 and Calcium - 2.29 (0.04) Vs 2.3 (0.02) mmol/L, p<0.05 respectively. No significant differences were noted in the plasma phosphorus and albumin concentrations.
Conclusion:
Magnesium and calcium levels are lower in the epileptic children compared to the controls during the seizure-free periods. More studies are needed to evaluate these electrolytes during seizures and the effect of the different anticonvulsant drugs on these electrolytes.
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