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MRI-guided laser procedure provides alternative to epilepsy surgery
Date:6/2/2014

May 30, 2014 For patients with mesial temporal lobe epilepsy (MTLE) that can't be controlled by medications, a minimally invasive laser procedure performed under MRI guidance provides a safe and effective alternative to surgery, suggests a study in the June issue of Neurosurgery , official journal of the Congress of Neurological Surgeons . The journal is published by Lippincott Williams & Wilkins , a part of Wolters Kluwer Health.

"Real-time magnetic resonance-guided stereotactic laser amygdalohippocampotomy (SLAH) is a technically novel, safe and effective alternative to open surgery," according to the new research by Dr. Robert E. Gross of Emory University School of Medicine, Atlanta, and colleagues.

MRI Guides Precise Laser Destruction of Area Causing Epilepsy

The researchers report their experience with MRI-guided SLAH in 13 adult patients with epilepsy mapped to a part of the brain called the mesial temporal lobe. The patients, median age 24 years, had "intractable" seizures despite treatment with antiepileptic drugs.

In the SLAH procedure, a saline-cooled fiberoptic laser probe was precisely targeted to the area of the brainthe "amygdalohippocampal complex"responsible for the procedures. Using real-time MRI guidance, the neurosurgeon was able to pinpoint the area of the brain responsible for seizure activity and destroy (ablate) by computer-controlled laser energy, without harming neighboring brain tissue.

The technical aspects of the procedure were successfully carried out in all patients. Using thermal imaging and MRI guidance, the surgeons were able to see the area of laser ablation as treatment proceeded. The average laser exposure time was just under ten minutes.

On average, 60 percent of the amygdalohippocampal complex was destroyed in the SL
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Contact: Connie Hughes
Connie.Hughes@wolterskluwer.com
646-674-6348
Wolters Kluwer Health
Source:Eurekalert

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