A brain aneurysm, also called a cerebral aneurysm, is a weakened area of a blood vessel's wall, according to the National Institute of Neurological Disorders and Stroke. Brain aneurysms can rupture, causing bleeding in the brain. To stop the blood flow, brain aneurysm patients can undergo microvascular clipping, a procedure in which a surgeon places a clip on part of the aneurysm. The Cincinnati-based Mayfield Clinic notes that patients who undergo clipping have a low risk of recurrence; however, some patients may experience complications.
Brain Damage
The Aneurysm and AVM Foundation points out that clipping may cause an aneurysm to rupture or damage the artery if the surgeon performs the procedure on an unruptured aneurysm. Either problem can cause bleeding in the brain, which can damage the brain. Confusion, memory loss, seizures, abnormal muscle movement and limb paralysis may be experienced as a result. Other symptoms of brain damage from a problematic aneurysm clipping include vision and speech problems.
Vasospasm and Stroke
The Mayfield Clinic notes that another complication of brain aneurysm clipping is vasospasm, in which the blood vessel's width changes. With vasospasm, the width can widen and narrow rapidly, which affects blood flow. MayoClinic.com explains that a blocked blood flow from vasospasm can lead to an ischemic stroke, which causes severe headache, sensation changes and mood changes. Patients may experience decreased alertness and might even lose consciousness. Vision problems can occur, such as decreased vision, double vision and loss of vision.
Improper Clipping
If the doctor does not properly place the clip on the aneurysm, patients can have complications, according to the Mayfield Clinic. For example, if the clip does not completely block off the aneurysm, the ruptured aneurysm can continue to bleed, which can damage surrounding brain tissue. An improper aneurysm clipping can cause a normal artery to become blocked, leading to restricted blood flow.
