Keyhole Endoscopic Brain surgery
Keyhole brain surgery procedure is also known as retro-sigmoid craniotomy is actually a minimally-invasive surgical procedure performed to remove brain tumors . The procedure permits to remove skull base tumors through a small incision behind the ear, which provides access to the cerebellum and brainstem. A minimally invasive approach makes sure that you can restore health easily and there is less pain inflicted, thus the recovery time is also less.
Key hole surgery can be an effective treatment for below conditions like
1/ Acoustic Neuromas
Keyhole approaches (like the retrosigmoid or translabyrinthine) allow surgeons to reach the tumor with minimal retraction of the cerebellum and a smaller incision, often preserving hearing and facial nerve function better than traditional open surgery.
2/ Meningiomas
These tumors often grow near critical areas (like the skull base). Keyhole approaches can provide a direct, minimally invasive corridor to tumors in difficult-to-reach locations (e.g., planum sphenoidale, orbit, convexity), reducing manipulation of surrounding brain tissue.
3/ Skull Base Tumors
This is where endoscopic/keyhole techniques truly shine. Procedures like Endoscopic Endonasal Approach (EEA) allow surgeons to remove tumors (e.g., pituitary adenomas, some craniopharyngiomas, chordomas) through the nose and sinuses, completely avoiding external incisions and brain retraction.
4/ Colloid Cysts
These are deep-seated tumors in the third ventricle. Neuroendoscopy is the gold standard for many, as a small endoscope is passed into the brain to drain and remove the cyst, offering a definitive treatment with a tiny entry point, minimizing damage to surrounding brain structures.
5/ Arteriovenous Malformations
While AVMs are complex, a minimally invasive approach can sometimes be used to access, clip, and remove smaller, superficially located AVMs, or as an adjunct to stereotactic radiosurgery, to reduce the overall surgical trauma.
6/ Metastatic Brain or Spine Tumors
certain single, accessible metastatic lesions, a keyhole approach allows for precise, targeted tumor removal with a smaller craniotomy, leading to faster recovery and quicker return to adjuvant treatments (like radiation or chemotherapy).
There are number of benefits of the keyhole surgery. some of them are:
- Leaves minimal visible scarring
- It affects a minimal amount of tissue, therefore the recovery is quick
- Postoperative treatment and rehabilitation can start sooner
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