In a special episode of Precision: Perspectives on Children's Surgery, you will hear a powerful story about a little boy named Patrick Marvel who was diagnosed with drug-resistant epilepsy due to a perinatal stroke and how an endoscopic hemispherectomy surgery at Lurie Children's transformed his life. Patrick's parents, Erin and Brendan Marvel, join Dr. Sandi Lam, Division Head of Neurosurgery Lurie Children's who performed Patrick's surgery, to discuss how advocacy and medical expertise can turn a devastating diagnosis into a hopeful new beginning.