Aneurysm Clipping and Coiling
Aneurysm clipping and coiling are the two primary methods used to treat brain aneurysms and prevent life-threatening ruptures. Surgical clipping is an open procedure performed via a craniotomy, where a micro-clip is placed across the neck of the aneurysm to shut off its blood supply. Endovascular coiling is a minimally invasive technique where fine platinum coils are delivered through a catheter in the groin directly into the aneurysm, packing it from the inside to cause clotting.
When this procedure may be recommended
- Ruptured brain aneurysm causing subarachnoid haemorrhage (requires urgent intervention).
- Unruptured brain aneurysm deemed to be at moderate-to-high risk of rupture (based on size, shape, location, or growth).
- Symptomatic unruptured aneurysms compressing cranial nerves.
Who may be a candidate
The choice between clipping and coiling is determined by a multidisciplinary team based on the aneurysm’s size, neck width, location, morphology, the patient’s age, overall medical health, and whether the aneurysm has ruptured.
Advanced medical implant technology (no text). Alternatives to surgery
- Conservative observation with blood pressure control and regular magnetic resonance angiography (MRA) for small, low-risk, unruptured aneurysms.
- Flow-diverter stents (advanced endovascular reconstruction).
What to expect
- Surgical Clipping: A craniotomy is performed under general anaesthesia. The brain is gently retracted under an operating microscope, the aneurysm neck is dissected, and a titanium clip is placed, permanently blocking blood flow into the bulge.
- Endovascular Coiling: Under sedation or general anaesthesia, a catheter is inserted into the femoral artery in the groin. Guided by real-time X-ray, the catheter is threaded up into the brain, and micro-coils are released into the aneurysm, sealing it off.
Technology and imaging
Uses state-of-the-art biplane digital subtraction angiography (DSA), intraoperative indocyanine green (ICG) videoangiography to verify blood flow in surrounding vessels, and high-magnification microscopes.
High-precision diagnostic imaging visualization. 
Clinical Zeiss/Leica operating microscope setup. Hospital stay
Unruptured cases: 2 to 4 nights. Ruptured cases (subarachnoid haemorrhage): 2 to 3 weeks in the ICU/ward to manage vasospasm and brain fluid.
Recovery milestones
- Unruptured: Quick return to normal home activities in 2 to 4 weeks. Scalp healing and fatigue resolve gradually.
- Ruptured: Extended, structured physical, cognitive, and occupational rehabilitation. Intensive care monitoring for 14 days post-bleed is standard to prevent secondary stroke.
Post-operative mobilization and recovery milestones. Risks and complications
- Aneurysm rupture during the procedure (2% to 3% risk).
- Ischemic stroke or vasospasm causing neurological deficits.
- Hydrocephalus (fluid buildup, occasionally requiring a shunt).
- Coil compaction or aneurysm recurrence requiring retreatment (higher in coiling than clipping).
Frequently asked questions
Which is better, clipping or coiling?
Neither is universally better; it depends on your specific aneurysm. Clipping is highly durable and excellent for wide-necked or complex aneurysms, while coiling is minimally invasive with a faster initial recovery.
Will I need follow-up imaging after treatment?
Yes. Regular follow-up MRA or catheter angiography is required, particularly after endovascular coiling, to ensure the aneurysm remains completely closed and the coils have not compacted.