Abstract
Introduction
Protection techniques using stents or balloons are occasionally limited in coil embolization of wide-necked posterior communicating artery (PcomA) aneurysms in which the PcomA originated from the aneurysm neck at an acute angle. Here, we present two cases undergoing retrograde stenting through the posterior cerebral artery in coil embolization of the PcomA aneurysms.
Methods
To perform retrograde stenting, a microcatheter used for stent delivery was advanced from the vertebral artery (VA) to the terminal internal carotid artery (ICA) via the ipsilateral P1 and the PcomA. The aneurysm sac was selected with another microcatheter for coil delivery through the ipsilateral ICA. Coil embolization was performed under the protection of a stent placed from the terminal ICA to the PcomA.
Results
Deployment of the stent was successful in both aneurysms treated using retrograde stenting by the VA approach. Coil deployment was performed through the jailed microcatheter at first. The microcatheter was repositioned through the stent struts later in one case and another microcatheter was inserted into the sac through the stent struts in the other case. Both aneurysms were occluded properly with the coils without procedure-related complications.
Conclusion
By providing complete neck coverage, retrograde stenting for coil embolization in wide-necked PcomA aneurysms seems to be a good alternative treatment strategy, when the aneurysms are incorporating extended parts of the PcomA, and the PcomA and P1 are big enough to allow passage of the microcatheter for delivery of the stent. However, this technique should be reserved for those cases with the specific vascular anatomy.
References
Golshani K, Ferrell A, Zomorodi A et al (2010) A review of the management of posterior communicating artery aneurysms in the modern era. Surg Neurol Int 1:88
Peluso JP, van Rooij WJ, Sluzewski M et al (2008) A new self-expandable nitinol stent for the treatment of wide-neck aneurysms: initial clinical experience. AJNR Am J Neuroradiol 29:1405–1408
Weber W, Bendszus M, Kis B et al (2007) A new self-expanding nitinol stent (Enterprise) for the treatment of wide-necked intracranial aneurysms: initial clinical and angiographic results in 31 aneurysms. Neuroradiology 49:555–561
Biondi A, Janardhan V, Katz JM et al (2007) Neuroform stent-assisted coil embolization of wide-neck intracranial aneurysms: strategies in stent deployment and midterm follow-up. Neurosurgery 61:460–468
Piotin M, Blanc R, Spelle L et al (2010) Stent-assisted coiling of intracranial aneurysms: clinical and angiographic results in 216 consecutive aneurysms. Stroke 41:110–115
Higashida RT, Halbach VV, Dowd CF et al (2005) Initial clinical experience with a new self-expanding nitinol stent for the treatment of intracranial cerebral aneurysms: the Cordis Enterprise stent. AJNR Am J Neuroradiol 26:1751–1756
Benitez RP, Silva MT, Klem J et al (2004) Endovascular occlusion of wide-necked aneurysms with a new intracranial microstent (Neuroform) and detachable coils. Neurosurgery 54:1359–1367
Lozen A, Manjila S, Rhiew R et al (2009) Y-stent-assisted coil embolization for the management of unruptured cerebral aneurysms: report of six cases. Acta Neurochir 151:1663–1672
Moret J, Ross IB, Weill A et al (2000) The retrograde approach: a consideration for the endovascular treatment of aneurysms. AJNR Am J Neuroradiol 21:262–268
Wanke I, Gizewski E, Forsting M (2006) Horizontal stent placement plus coiling in a broad-based basilar-tip aneurysm: an alternative to the Y-stent technique. Neuroradiology 48:817–820
Fitzpatrick D, Chen M, Meyers PM (2006) Horizontal Neuroform stent deployment for a ruptured basilar terminus aneurysm via the posterior communicating artery. J Vasc Interv Radiol 17:1687–1691
Siddiqui MA, Bhattacharya J, Lindsay KW et al (2009) Horizontal stent-assisted coil embolisation of wide-necked intracranial aneurysms with the Enterprise stent—a case series with early angiographic follow-up. Neuroradiology 51:411–418
Blackburn SL, Kadkhodayan Y, Shekhtman E, et al. (2012) Treatment of basilar tip aneurysms with horizontal PCA to PCA stent-assisted coiling: case series. J Neurointerv Surg [Epub ahead of print]
Pride GL Jr, Welch B, Novakovic R et al (2009) Retrograde crossing stent placement strategies at the basilar apex for the treatment of wide necked aneurysms: reconstructive and deconstructive opportunities. J Neurointerv Surg 1:132–135
Puri AS, Erdem E (2009) Unusual intracranial stent navigation through the circle of Willis in a patient with recurrent basilar tip aneurysm during stent-assisted coiling. A case report. Interv Neuroradiol 15:81–86
Kelly ME, Turner R, Gonugunta V et al (2007) Stent reconstruction of wide-necked aneurysms across the circle of Willis. Neurosurgery 61(5 Suppl 2):249–254
Raslan AM, Oztaskin M, Thompson EM et al (2011) Neuroform stent-assisted embolization of incidental anterior communicating artery aneurysms: long-term clinical and angiographic follow-up. Neurosurgery 69:27–37
Endo H, Sato K, Kondo R et al (2012) Tuberothalamic artery infarctions following coil embolization of ruptured posterior communicating artery aneurysms with posterior communicating artery sacrifice. AJNR Am J Neuroradiol 33:500–506
Ecker RD, Hanel RA, Levy EI et al (2007) Contralateral vertebral approach for stenting and coil embolization of a large, thrombosed vertebral-posterior inferior cerebellar artery aneurysm. Case report. J Neurosurg 107:1214–1216
Roh HG, Chun YI, Choi JW et al (2012) Retrograde stent placement for coil embolization of a wide-necked posterior inferior cerebellar artery aneurysm. Korean J Radiol 13:510–514
Acknowledgment
We thank Yoon-Kyung Choi for preparing the illustrations.
Conflict of interest
We declare that we have no conflict of interest.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Cho, Y.D., Kim, K.M., Lee, W.J. et al. Retrograde stenting through the posterior cerebral artery in coil embolization of the posterior communicating artery aneurysm. Neuroradiology 55, 733–739 (2013). https://doi.org/10.1007/s00234-013-1163-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00234-013-1163-8