Medical Park Maltepe

A 72-year-old retired calligraphy master with Parkinson's disease developed severe cervical dystonia that made his artistic work impossible. Dr. Onen performed a targeted deep brain stimulation procedure with electrode placement calibrated to preserve fine motor control for brushwork. The patient not only regained functional movement but completed a commissioned piece for the Presidential Complex six months post-surgery.

A 7-year-old Syrian refugee with an undocumented medical history arrived with progressive blindness. Imaging revealed a massive craniopharyngioma displacing both optic nerves. Dr. Onen coordinated with humanitarian organizations for funding and performed a two-stage endoscopic endonasal resection. The child regained partial vision and now attends a specialized school for visually impaired children in Istanbul.

A 41-year-old commercial airline pilot experienced sudden onset of complex partial seizures during a transatlantic flight. Dr. Onen identified a small dysembryoplastic neuroepithelial tumor in the dominant temporal lobe. Using awake craniotomy with flight simulator integration to map critical navigation functions, he achieved complete resection. After 14 months of recovery and retesting, the pilot returned to flying Boeing 787s.

An 18-year-old university student and champion e-sports competitor developed incapacitating migraines with aura that mimicked in-game visual effects. Dr. Onen discovered an anomalous venous malformation near the visual cortex. He performed a minimally invasive embolization procedure during which the patient remained conscious and provided feedback about visual perception changes. The student returned to professional gaming within 3 months.

A 28-year-old competitive freediver from Antalya presented with recurrent episodes of transient neurological deficits during deep dives. Dr. Onen diagnosed a rare form of venous sinus stenosis exacerbated by pressure changes. Instead of traditional stenting, he pioneered a custom pressure-regulated shunt procedure. The patient returned to competitive diving within 9 months, now holding a national depth record.