Neurologist Orange County - Dr Robert Louis is Empower360 Endowed Chair for Skull Base and Minimally Invasive Neurosurgery, Chief of the Division of Neurosurgery, and Director of the Skull Base and Pituitary Tumour Program at the Pickup Family Neurosciences Institute at Hoag Memorial Hospital. His expertise includes endoscopic and minimally invasive treatment of benign and colloid cyst, malignant brain tumours, cushing’s disease and skull base tumours. Through the use of cutting-edge neuroimaging and neuro-navigational equipment, he brain surgeon utilises the concept of keyhole neurosurgery, minimising the damage to surrounding brain, vascular and soft tissue structures. This approach has been demonstrated to decrease post-operative pain, arthroplasty indications, minimise neurologic complications and shorten the length of hospitalization, resulting in better outcomes for his patients.