Name: Video: Efficacy of Frontal Disconnection in Treating Epilepsy Associated with Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE)
Uploaded: 2024-08-16T13:30:00
Description: 57 Views. Efficacy of Frontal Disconnection in Treating Epilepsy Associated with Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE)

efficacy of frontal disconnection in treating epilepsy associated with mild malformation of cortical development with oligodendroglial hyperplasia in epilepsy (moghe)

MOGHE and Epilepsy: Outcomes of Frontal Disconnection Surgery 

Malformation of cortical development (MCD) is an important cause of drug-resistant epilepsy and developmental delay in young children. There are many types of MCD, among which FCD is the most common type1. According to the latest updated FCD classification in 2022, MOGHE is described and classified as a predominantly white matter lesion in contrast to juxta-cortical localized FCD2 that was primarily described as proliferative&#8195;oligodendroglial&#8195;hyperplasia&#8195;with&#8195;epilepsy&#8195;(POGHE) in 20133 and first proposed in 20174. MOGHE is defined by an increase in heterotopic neurons in the white matter and deep cortical layers above 2200 Olig2-immunoreactive cells/mm2 in specimen2,4,5.
Clinically, MOGHE is most commonly observed in the frontal lobe, and epileptic spasms are the most common initial seizure type6. The interictal EEG pattern was usually multifocal or widespread in young children6. In younger children, MRI showed an increased laminar signal at the gray-white matter junction. In older children, reduced subcortical T2/FLAIR signals and blurring at the gray-white matter transition were observed7. An accurate delineation of MOGHE is very difficult in clinical practice. Therefore, the traditional concept and strategy of preoperative evaluation to determine the extent of the epileptogenic zone by comprehensive anatomo-electro-clinical evaluation is difficult to implement. Herein, a pediatric cohort with MOGHE in the frontal lobe was analyzed to extend the knowledge of surgical treatment for MOGHE.

Author Spotlight: Studying Clinical Characters and Epilepsy Outcomes After Frontal Disconnection in Patients with MOGHE

Frontal Disconnection for Treating Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE) in the Frontal Lobe

Efficacy of Frontal Disconnection in Treating Epilepsy Associated with Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE)

efficacy-frontal-disconnection-treating-epilepsy-associated-with-mild

Research

JoVE Journal

Medicine

57 Views. Efficacy of Frontal Disconnection in Treating Epilepsy Associated with Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE)

Video: Efficacy of Frontal Disconnection in Treating Epilepsy Associated with Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE)

Malformation of cortical development is an important cause of drug-resistant epilepsy in young children. Mild malformation of cortical development with oligodendroglial hyperplasia in epilepsy (MOGHE) has been added to the last focal cortical dysplasia (FCD) classification and commonly involves the frontal lobe. The semiology at the onset of epilepsy is dominated by non-lateralizing infantile spasm; the boundaries of the malformation are usually difficult to determine by magnetic resonance imaging (MRI) and positron emission tomography (PET), and electroencephalography (EEG) findings are often widespread. Therefore, the traditional concept and strategy of preoperative evaluation to determine the extent of the epileptogenic zone by comprehensive anatomo-electro-clinical methods are difficult to implement. 
Frontal disconnection is an effective surgical method for the treatment of epilepsy, but there are few related reports. A total of 8 children with histo-pathologically confirmed MOGHE were retrospectively studied. MOGHE was located in the frontal lobe in all patients, and frontal disconnection was performed. The periinsular approach was used in the disconnective procedures, divided into several surgical steps: the partial inferior frontal gyrus resection, the frontobasal and intrafrontal disconnection, and the anterior corpus callosotomy. 
One patient presented with a short-term postoperative speech disorder, while another patient exhibited transient postoperative limb weakness. No long-term postoperative complications were observed. At 2 years after surgery, 75% of patients were seizure-free, with cognitive improvement in half of them. This finding suggested that frontal disconnection is an effective and safe surgical procedure for the treatment of MOGHE instead of extensive resection in the frontal lobe.

Here, we present a protocol to describe the epilepsy outcome and complications of 8 patients with mild malformation of cortical development with oligodendroglial hyperplasia in epilepsy (MOGHE) in the frontal lobe after frontal disconnection. The procedure is characterized by its simplicity, user-friendliness, and fewer postoperative complications.

Malformation of cortical development is an important cause of drug-resistant epilepsy in young children. Mild malformation of cortical development with ...