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Spontaneous bilateral vertebral artery dissection complicated by hemodynamic posterior circulation stroke: A case report.
Radiol Case Rep
March 2025
Neuroradiology department, Hospital of specialities, Ibn Sina university hospital center, Rabat, Morocco.
Bilateral vertebral artery dissections account for only 8% of all vertebral artery dissections and cause just 2% of all ischemic strokes. They can occur spontaneously, even without any triggering factor. Classical clinical findings, such as headache or neck pain, may be absent, particularly in the context of a stroke.
View Article and Find Full Text PDFThe biomechanical effects of treating double-segment lumbar degenerative diseases with unilateral fixation through interlaminar fenestration interbody fusion surgery: a three-dimensional finite element study.
BMC Musculoskelet Disord
January 2025
Orthopedics, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
Background: Transforaminal lumbar interbody fusion (TLIF) surgery has become increasingly popular in the surgical treatment of lumbar degenerative diseases. The optimal structure for stable double-segment fixation remains unclear.
Objective: To compare the biomechanical changes of unilateral fixation versus bilateral fixation in patients with lumbar degeneration undergoing double-segment TLIF surgery, and to explore the stability and feasibility of unilateral double-segment fixation.
Capillary connections between sensory circumventricular organs and adjacent parenchyma enable local volume transmission.
J Neuroendocrinol
January 2025
Department of Psychology, Columbia University, New York, New York, USA.
Among contributors to diffusible signaling are portal systems which join two capillary beds through connecting veins. Portal systems allow diffusible signals to be transported in high concentrations directly from one capillary bed to the other without dilution in the systemic circulation. Two portal systems have been identified in the brain.
View Article and Find Full Text PDFAnterior communicating artery aneurysm with concomitant A2 segment triplication and anterior communicating artery fenestration, A rare case series on microsurgical treatment.
Ann Med Surg (Lond)
December 2024
Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Sandy, UT, USA.
Introduction And Importance: There are few cases of multiple simultaneous anterior communicating artery (AComA) aneurysms with A2 triplication and AComA duplication.
Cases Presentation: (1) A fenestrated AComA with a saccular aneurysm (neck diameter 9 mm; dome height 8 mm) projecting superiorly from the distal AComA branch, as well as an anomalous artery arising from the posterior surface of the same AComA. (2) A duplicate AComA with a saccular aneurysm (neck diameter of 5 mm; dome height of 9 mm) projecting superioposteriorly from the distal AComA branch, as well as an anomalous artery arising from the anterior surface of the same AComA was diagnosed.
Endovascular Treatment of Large Proximal Basilar Artery Fenestrated Aneurysms: Overlapping Stent with Coil Embolization-A Case Report.
NMC Case Rep J
November 2024
Department of Neurosurgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
This detailed case report presents and discusses the endovascular treatment of a large proximal basilar artery fenestrated aneurysm (PBAFA). Aneurysms occur rarely at the vertebrobasilar junction, with a moderate proportion of cases presenting fenestrations. Considering the high risk associated with posterior circulation aneurysms, including estimated rupture risk, periprocedural complications, or treatment difficulties in surgical procedures, endovascular treatment options are becoming increasingly favored, particularly considering the advancements in stent and flow diverter techniques.
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