Detachable coils are established as a safe and effective treatment option for some patients with intracranial aneurysms. However this treatment is not useful for the treatment of certain types of complicated aneurysms. Wide-necked or broad-based aneurysms are still complicated to embolize because of the risk of coil migration or coil protrusion into the parent vessel.
The Neuroform stent has recently been introduced for the treatment of complex aneurysms. The stent functions primarily to provide durable parent vessel protection during embolization.
This report demonstrates coil migration occurring as a delayed complication of Neuroform stent-assisedt coil embolization of a small intracranial aneurysm.
GuglielmiGViñuelaF: Electrothrombosis of saccular aneurysms via endovascular approach, I: Electrochemical basis, technique and experimental results. J Neurosurg75: 1–7, 1991.
2.
GuglielmiGViñuelaF: Electrothrombosis of saccular aneurysms via endovascular approach, 2: Preliminary clinical experience. J Neurosurg75: 8–14, 1991.
3.
MolyneuxAKerrR: International Subarachnoid Aneurysm Trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: A randomized trial. Lancet360 (9342): 1267–1274, 2002.
4.
MolyneuxAKerrRS: International subarachnoid aneurysm trial (ISAT) of neurosurgical clipping versus endovascular coiling in 2143 patients with ruptured intracranial aneurysms: A randomised comparison of effects on survival, dependency, seizures, rebleeding, subgroups, and aneurysm occlusion. Lancet366 (9488): 809–17, 2005.
5.
ZubillagaFernandez AGuglielmiG: Endovascular occlusion of intracranial aneurysms with electrically detachable coils: Correlation of aneurysm neck size and treatment results. Am J Neuroradiol15: 815–20, 1994.
6.
FiorellaDAlbuquerqueFC: Preliminary experience using the Neuroform stent for the treatment of cerebral aneurysms. Neurosurgery54: 6–16; discussion 16–17, 2004.
7.
HenkesHFisherS: Endovascular coil occlusion of 1811 intracranial aneurysms: Early angiographic and clinical results. Neurosurgery54: 268–80; discussion 280–285, 2004.
8.
BenitezRPSilvaMT: Endovascular occlusion of wide-necked aneurysms with a new intracranial microstent (Neuroform) and detachable coils. Neurosurgery54: 1359–67; discussion 1368, 2004.
9.
dos Santos SouzaMPAgidR: Microstent-assisted coiling for wide-necked intracranial aneurysms. Can J Neurol Sci32: 71–81, 2005.
10.
HenkesHKirschM: Coil treatment of a fusiform upper basilar trunk aneurysm with a combination of “kissing” neuroform stents, TriSpan-, 3D- and fibered coils, and permanent implantation of the microguidewires. Neuroradiology46: 464–468, 2004.
11.
HowingtonJUHanelRA: The Neuroform stent, the first microcatheter-delivered stent for use in the intracranial circulation. Neurosurgery54: 2–5, 2004.
12.
McDougallCGHalbachVV: Endovascular treatment of basilar tip aneurysms using electrolytically detachable coils. J Neurosurg84: 393–399, 1996.
13.
NicholsDABrownRDJr: Endovascular treatment of ruptured posterior circulation aneurysms using electrolytically detachable coils. J Neurosurg87: 374–380, 1997.
14.
PierotLBoulinA: Selective occlusion of basilar artery aneurysms using controlled detachable coils: Report of 35 cases. Neurosurgery38: 948–954, 1996.
15.
RaymondJRoyD: Endovascular treatment of acutely ruptured and unruptured aneurysms of the basilar bifurcation. J Neurosurg86: 211–219, 1997.
16.
GoddardJKMoranCJ: Absent relationship between the coil-embolization ratio in small aneurysms treated with a single detachable coil and outcomes. Am J Neuroradiol26: 1916–1920, 2005.
17.
RicolfiFLe GeurinelC: Rupture during treatment of recently embolized aneurysms with Guglielmi electrodetachable coils. Am J Neuroradiol19: 1653–1658, 1998.
18.
ViñuelaFDuckwilerG: Guglielmi detachable coil embolization of acute intracranial aneurysm: Perioperative anatomical and clinical outcome in 403 patients. J Neurosurg86: 475–482, 1997.
19.
SluzewskiMBoschJA: Ruptured of intracranial aneurysms during treatment with Guglielmi detachable coils: Incidence, outcome, and risk factors. J Neurosurg94: 238–240, 2001.
20.
LylykPFerrarioA: Buenos Aires experiences with the Neuroform self-expanding stent for the treatment of intracranial aneurysms. J Neurosurg102: 235–241, 2005.
