Choosing International St. Mary's Hospital for Hemispherectomy gives patients access to specialist-led epilepsy surgery, advanced brain mapping and imaging, and coordinated neurological rehabilitation. Established in 2014, the JCI accredited hospital is located in Seoul, South Korea and operates 808 beds with modern neurosurgical infrastructure.

Hemispherectomy may be considered when severe epilepsy originates primarily from one cerebral hemisphere and remains uncontrolled despite appropriate medical treatment. The surgeon disconnects the affected hemisphere from the healthy side, with the exact technique determined by the underlying disease and patient's anatomy. The goal is to significantly reduce or stop disabling seizures while minimizing neurological complications. Following surgery, rehabilitation may address mobility, balance, speech, and other functions depending on the patient's needs.