Bone Health in Patients with Epilepsy: A Community-based Pilot Nested Case-control Study

Area of Science:

• Endocrinology
• Neurology
• Bone Metabolism

Background:

• Antiepileptic drugs (AEDs) are known to negatively impact bone health.
• Alterations in bone and mineral metabolism are frequently reported in epileptic patients.

Purpose of the Study:

• To evaluate the bone profile, including bone mineral parameters and bone mineral density (BMD), in epilepsy patients.
• To compare these parameters between epilepsy patients on AEDs and matched healthy controls.

Main Methods:

• A nested case-control study involving 25 epilepsy patients on AEDs for at least 3 years and 25 matched healthy controls.
• Measurement of serum calcium, proteins, phosphorous, alkaline phosphatase, parathyroid hormone, and Vitamin D.
• Assessment of bone mineral density (BMD) at the lumbar spine and femur neck.

Main Results:

• Epilepsy patients exhibited significant hypocalcemia, hypoproteinemia, hyperparathyroidism, and elevated serum alkaline phosphatase compared to controls.
• No significant difference in Vitamin D or phosphorous levels was observed between groups, though Vitamin D was lower in female patients.
• No significant difference in BMD was found, but longer epilepsy duration correlated with reduced BMD Z-scores and increased drug load correlated with lower T-scores.

Conclusions:

• Long-term AED treatment in epilepsy patients is associated with altered biochemical bone parameters and potentially reduced BMD.
• Further extensive research with larger sample sizes is warranted to confirm these findings.