Epilepsy drugs increase risk of fractures and falls

June 28, 2012, University of Melbourne

(Medical Xpress) -- New research has shed light on the high risk of fractures, falls, and osteoporosis among epilepsy patients using antiepileptic drugs with most patients unaware of the risks associated with taking the drugs.

The study led by the University of Melbourne and published in the prestigious Neurology journal, found that people taking are up to four times more likely to suffer , collarbone and ankle fractures and are more likely to have been diagnosed with osteoporosis.

The study also revealed that these patients are more than four times as likely as non-users of antiepileptic drugs to have been diagnosed with .

In addition, treatment affected balance with results showing almost double the falls rate in taking the medication compared with non-users.

Chief Investigator, Prof John Wark from the University of Melbourne’s Department of Medicine at the Royal Melbourne Hospital said this research revealed new information critical to understanding the higher risk for fractures and falls in taking antiepileptic medication.

“We believe patients need to be offered better information to help them to avoid these risks and prevent injury,” he said.

More than 70 percent of epilepsy patients who participated in the study were unaware of the increased risk of fractures, decreased bone mineral density and falls associated with taking antiepileptic medications.

“No published studies have explored epilepsy patients’ awareness of the effects of AEDs on bone health, fracture risk and falls.  This study indicates that awareness of these issues is poor, despite our study population attending specialist epilepsy clinics at a centre with a major interest in this area,” said Prof Wark.

“Most patients indicated they would like to be better informed about these issues, suggesting that more effective education strategies are warranted and would be well-received.”

“Epilepsy patients should be assessed regularly for their history of falls and fractures for appropriate management strategies to be offered.”

The study compared 150 drug users with 506 non-users.  All drug users were outpatients at the Royal Melbourne Hospital, over 15 years old and had been taking AEDs for a minimum of three months.

Collaborators include La Trobe University, the National Ageing Research Institute, and the University of Malaya, Malaysia.

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