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The length and distance of origin from the ostium of parent artery were measured with the help of a measuring scale.
Ideally, the aneurysm is secured by clipping, with the parent artery preserved.
1 During the surgery, a wire mesh tube is placed across the neck of the aneurysm to redirect blood flow and seal off the aneurysm from the parent artery, keeping it from rupturing.
Aneurysm recurrence after coiling has generally been thought to proceed through two mechanisms: 1) recanalization (acute or delayed) of the coiled aneurysm fundus, resulting from an underlying instability of the intra-aneurysmal coil-thrombus complex; and/or 2) progressive absolute aneurysm growth from either an unsecured niche of an incompletely coiled aneurysm or an intrinsic (initially occult) deficiency in the wall of the perianeurysmal parent artery.