Multiple subpial transection for Landau-Kleffner syndrome.

Landau-Kleffner syndrome (LKS) is an acquired epileptic aphasia caused by a lesion in the speech centers of the cerebral cortex during a critical period of childhood development. Characteristics of LKS include language deterioration, seizure disorders, and severe electroencephalogram abnormalities. Multiple subpial transection (MST) is a surgical procedure that eliminates seizure activity in the cerebral cortex while preserving the child's normal cortical functions of speech, movement, primary sensation, and memory. This article presents a summary of clinical studies on LKS and discusses the diagnosis of LKS, traditional medical treatments, patient selection for MST procedures, and perioperative care of children undergoing MST procedures.