Endoscopic Brain Surgery
Endoscopic brain surgery is a highly advanced, minimally invasive surgical technique where the neurosurgeon accesses deep-seated or fluid-filled brain areas through small keyhole channels using a specialized high-definition camera (endoscope). This technique allows the surgeon to visualize, biopsy, or resect tumours and relieve fluid blocks directly while minimizing disruption to overlying healthy brain tissue.
When this procedure may be recommended
- Intraventricular brain tumours (colloid cysts, ependymomas).
- Obstructive hydrocephalus requiring fluid bypass.
- Deep-seated or skull base tumours (pituitary tumours, chordomas) accessible trans-nasally.
- Cysts (arachnoid cysts) requiring fenestration or drainage.
Who may be a candidate
Candidates are patients with structural brain lesions or fluid blocks located within the brain ventricles or at the skull base that can be safely reached along a straight corridor. Complex, highly vascular, or infiltrative superficial cortical tumours are better suited to standard microsurgery.
Advanced medical implant technology (no text). Alternatives to surgery
- Traditional open craniotomy using the operating microscope.
- Stereotactic biopsy followed by radiotherapy or chemotherapy.
- Conservative monitoring with serial MRI scans.
What to expect
- Approach: A small burr hole (about the size of a coin) is made in the skull under general anaesthesia.
- Access Channel: A thin, hollow working sheath is gently guided into the brain ventricle or fluid cavity under neuronavigation control.
- Endoscope Insertion: The high-definition endoscope is passed through the sheath, projecting bright, magnified images of the internal brain structures onto a theatre screen.
- Lesion Clearance: Meticulous micro-surgical tools are passed through the scope's working channels to resect the tumour or open fluid pathways.
- Closure: The endoscope and sheath are removed, the skull window is covered, and the scalp is closed.
Technology and imaging
Employs high-resolution rigid and flexible endoscopes, electromagnetic neuronavigation guidance, and micro-scissor/forceps instruments.
High-precision diagnostic imaging visualization. 
Clinical Zeiss/Leica operating microscope setup. Hospital stay
Typically 2 to 4 nights in hospital, often including a night of close observation in the ICU or HDU.
Recovery milestones
- Day 1: Monitored in the ICU or ward. Progressive mobilisation begins early.
- Weeks 1-4: Home rest. Expect mild headaches, localized scalp healing, and moderate fatigue. Avoid heavy lifting and driving.
- Week 6+: Clinical review and follow-up MRI to confirm successful clearance or fluid flow.
Post-operative mobilization and recovery milestones. Risks and complications
- Intraventricular bleeding (ventricular haemorrhage).
- Transient or permanent memory loss or neurological deficit (due to proximity to the fornix).
- Cerebrospinal fluid leak or meningitis (1% to 3% risk).
- Endocrine dysfunction if working near the hypothalamus.
Frequently asked questions
What is the main benefit of endoscopic surgery over open surgery?
Endoscopic surgery uses a keyhole approach that completely avoids large incisions and brain retraction, leading to less post-operative pain, reduced brain swelling, and a significantly faster recovery.