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Spontaneous Thrombosis of Giant Dissecting Fusiform Middle Cerebral Aneurysm After Double-Barrel Superficial Temporal Artery-Middle Cerebral Artery Bypass: A Case Report of Decision-Making in a Limited Resource Environment.

Abstract：

BACKGROUND:The treatment of giant fusiform middle cerebral artery (MCA) aneurysms remains daunting owing to their tendency to be associated with precarious end-vessel anatomy and the need for complex microsurgical techniques to appropriately address the aneurysm and the vasculature at risk. Extracranial-intracranial bypass revascularization remains a valuable tool for treating these complex lesions. In the present report, we have described a rare occurrence in which the creation of a double-barrel superficial temporal artery (STA-MCA) bypass facilitated spontaneous obliteration of the aneurysm. We have also highlighted our decision-making process, which was affected by operating in a low-to-middle income country with limited resources. CASE DESCRIPTION:A 32-year-old man had presented with recurrent ischemic events in the left MCA distribution and subsequent subarachnoid hemorrhage due to rupture of a giant complex fusiform MCA aneurysm. The patient underwent double-barrel STA-MCA bypass and was scheduled for second-stage clip reconstruction or partial trapping. Postoperative imaging studies revealed progressive thrombosis of the M1 segment, resulting in occlusion of the aneurysm without subsequent trapping or clipping. The patient recovered remarkably without further repeat hemorrhage or ischemic injury. We also reviewed the reported data. CONCLUSIONS:Double-barrel STA-MCA bypass is a potential salvage surgical technique to treat selected ruptured complex giant fusiform MCA aneurysms. In rare selected cases, the flow alteration induced by the bypass alone can potentially facilitate aneurysm thrombosis.

journal_name

World Neurosurg

journal_title

World neurosurgery

authors

Huynh TD,Felbaum DR,Jean WC,Ngo HM

doi

10.1016/j.wneu.2020.01.047

subject

Has Abstract

pub_date

2020-04-01 00:00:00

pages

161-168

eissn

1878-8750

issn

1878-8769

pii

S1878-8750(20)30055-3

journal_volume

136

pub_type

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Spontaneous Thrombosis of Giant Dissecting Fusiform Middle Cerebral Aneurysm After Double-Barrel Superficial Temporal Artery-Middle Cerebral Artery Bypass: A Case Report of Decision-Making in a Limited Resource Environment.