Distal posterior cerebral artery revascularization in multimodality management of complex peripheral posterior cerebral artery aneurysms: technical case report

Neurosurgery
A G VishtehR F Spetzler

Abstract

OBJECTIVES AND IMPORTANCE: Although controversial, revascularization of the distal posterior cerebral artery (PCA) may become necessary in treating complex PCA aneurysms before proximal parent vessel sacrifice. The revascularization of the distal PCA territories of two patients with peripheral PCA aneurysms is presented. One patient had an aneurysm of the P2-P3 segment and failed a selective P2 balloon occlusion test by developing homonymous hemianopia before planned parent vessel sacrifice. The other patient with a giant P2 segment aneurysm presented with visual field deficits. The distal segment of PCA was revascularized before the aneurysms were trapped by surgical clipping or coil occlusion of the distal P2 segment, proximal to the aneurysms. In both cases, the occipital artery was used as the "donor" vessel. Temporary occlusion times were 22 and 20 minutes, respectively. Both grafts were patent on postoperative angiography, and both patients had full visual fields at the time of their follow-up examinations. De novo distal P2 sacrifice, advocated for treating peripheral PCA aneurysms, leads to visual field deficits in some patients. Revascularization of the distal segment of the PCA, less technically demanding than bypass ...Continue Reading

References

Apr 1, 1971·Journal of Neurosurgery·O H Reichman
Mar 1, 1982·Neurosurgery·L N HopkinsR F Spetzler

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Citations

Jun 10, 2004·Neurologia Medico-chirurgica·Masaru HondaIzumi Nagata
Oct 22, 2008·Journal of Neurosurgery·Eric S NussbaumLeslie A Nussbaum
Jul 12, 2003·Journal of Neurosurgery·Christopher L TaylorPhillip D Purdy
Nov 4, 2000·Neurosurgery·I B RossJ Moret
Oct 30, 2020·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Shumyla JabeenDhaval Shukla

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