Disorders

Epilepsy Award - 2010

Dr Julia Hocking was the recipient of Brain Foundation grant funding in 2010

Epilepsy Award

Epilepsy Award
Memory function in temporal lobe epilepsy.
Dr Julia Hocking
University of Queensland
Funded By Michael Rogers Stirling Estate
Co-Investigators : Professor David Charles Reutens
Julia Hocking

Epilepsy Award funded by Michael Rogers Stirling Estate
Memory function in temporal lobe epilepsy.

Dr Julia Hocking
University of Queensland
Co-Investigator: Professor David Charles Reutens

 

Mesial temporal lobe epilepsy is the most common form of adult-onset epilepsy, and patients unresponsive to drug treatments for epilepsy may require surgical removal of brain tissue to prevent life-threatening seizures. The brain structures affected in mesial temporal lobe epilepsy play a pivotal role in long term memory, and memory dysfunction is the chief cognitive issue in this group of patients. Measureable memory decline is also a common consequence of temporal lobe resection, used to treat mesial temporal lobe epilepsy refractory to medication. Between 33- 55% of patients are reported to show significant post-operative verbal memory decline and severe amnesia is one of the most feared complications of surgery.

 

The assessment of pre-operative memory function and of the structural and functional integrity of key brain structures subserving memory forms an important part of pre-surgical evaluation, and informs assessment of the risk of post-operative memory decline. Functional MRI (fMRI) is being used more frequently to predict the impact that surgery may have on cognitive functioning of patients with intractable temporal lobe epilepsy, however there is no gold standard for accurate prediction of potential post-surgical cognitive deficits. The aim of the research to be funded by the Brain Foundation is to investigate a new method for assessing post-operative memory function, and to assess the differential effect that lateralisation of damage and/or surgery (i.e. left versus right temporal lobe) has on memory function outcome. Functional brain imaging techniques will be used in patients with left and right mesial temporal lobe epilepsy, with the ultimate aim of developing a new method to assist in pre-surgical evaluation and to minimise post-operative cognitive dysfunction in this group of patients.

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