Decoding DBS Target Selection in Parkinson's Disease | Functional Neurosurgery Explained – Episode 5

Decoding DBS Target Selection in Parkinson's Disease | Functional Neurosurgery Explained – Episode 5 #Parkinsons #neurosurgery #DBS More than thirty percent of all D‑B‑S failures trace back to one mistake — the wrong patient, or the wrong target, chosen long before the operation even began. Welcome to Episode 5 of "Functional Neurosurgery, Explained." In this episode, I take you inside the single most important D‑B‑S decision — the one made in clinic, not in the operating theatre — and show you a framework I call TARGET: a six‑letter equation you can run on every Parkinson's patient who walks through your door. This is not a checklist. This is a way of thinking that tells you whether to operate, and where to put the lead. ▶️ In this video you will learn: Why target selection is the only step in D‑B‑S that cannot be corrected after surgery The five‑evaluation multidisciplinary workup that feeds every target decision The six letters of TARGET — True diagnosis, Anatomy of symptoms, Response to levodopa, Goal, Evaluation of the brain, and the Red lines — and why they function as gates, not as a score How to spot atypical parkinsonism — M‑S‑A, P‑S‑P, Lewy body dementia, Corticobasal Degeneration — before you commit a patient to a surgery that will not help them Why "describe the worst hour of your worst day" is the single most useful question in your D‑B‑S clinic What the thirty percent levodopa response threshold really means — and why D‑B‑S is a biological amplifier, not a generator When TARGET solves to S‑T‑N, when it solves to G‑P‑i, and when it solves to Vim — with three worked patient profiles How cognitive reserve and mood quietly decide whether you should operate at all — and which target is more forgiving when the brain is vulnerable The timing question — why the EARLYSTIM trial changed the conversation, and why both operating too late and operating too early are mistakes The six absolute red lines that collapse the entire equation to zero — and why a confident "no" protects the patient far more than a hesitant "yes" By the end, you will have a single framework — TARGET — that you can run on every Parkinson's patient, every single time. The same framework returns in Episode 6 for dystonia, and Episode 7 for essential tremor. Learn it once. Use it for the rest of your career. This series is designed for: Medical students and trainees curious about functional neurosurgery Neurology and neurosurgery residents Neuroscience and biomedical engineering students Any clinician who wants to understand the rationale behind D‑B‑S patient and target selection I keep the language simple, avoid unnecessary jargon, and focus on clear mental models you can carry with you into clinical practice. 📺 Series roadmap: Episode 1 – Finding 1 mm in the Brain (localisation) Episode 2 – Frames and the Geometry of Precision Episode 3 – Neuromodulation vs. Neuroablation Episode 4 – How Electrical Stimulation Changes Brain Circuits Episode 5 – Decoding D‑B‑S Target Selection in Parkinson's Disease ← You are here Episode 6 – Decoding D‑B‑S Target Selection in Dystonia Episode 7 – Decoding D‑B‑S Target Selection in Essential Tremor Future episodes – Operative workflows and adaptive D‑B‑S If you find this useful: 👍 Like the video 📝 Leave a comment — tell me which topic you want covered next 🔔 Subscribe to follow the full series Links and resources: https://www.linkedin.com/in/dr-amr-moursi/ #neurosurgery #functionalneurosurgery #DBS #deepbrainstimulation #Parkinsons #neuromodulation #STN #GPi #Vim #patientselection #movementdisorders #meded #neuroscience