Common femoral artery (CFA) transfemoral access (TFA) has been the traditional route for neuroendovascular intervention with flow diversion including the pipeline embolization device (PED) for the treatment of wide-necked aneurysms. Successful deployment requires significant catheter support, thus making alternative access challenging. A 56-year-old-female presented with subarachnoid hemorrhage secondary to a large ruptured posterior communicating artery (PCOM) aneurysm as well as found to have an unruptured left superior cerebellar artery (SCA) aneurysm. Endovascular embolization of PCOM aneurysm via TFA was complicated by a right CFA pseudoaneurysm. The SCA aneurysm was treated 8 weeks later via left TFA with consequent development of a left CFA pseudoaneurysm. Contrasted magnetic resonance angiography revealed recurrence at the neck of the PCOM aneurysm at 4-month follow-up, treated via transradial access (TRA) PED flow diversion to avoid additional groin complications. Anatomic, procedural, and clinical considerations for TRA anterior circulation flow diversion using the PED are reviewed.
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http://dx.doi.org/10.4103/bc.bc_13_20 | DOI Listing |
J Craniofac Surg
December 2024
Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, P.R. China.
Background: The stent-assisted coiling (SAC) and flow-diverter stent (FDS) techniques are widely used in the endovascular treatment of paraclinoid aneurysms. This article compares the occlusion rate, periprocedural complications, and clinical outcomes of SAC and FDSs.
Methods: Between January 2010 and December 2020, a systematic search of electronic databases identified 2283 articles for screening.
Environ Sci Technol
December 2024
Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305, United States.
California's Bay-Delta watershed encompasses 40% of the state's runoff and serves water supply and irrigation needs throughout the state. A recently amended policy attempts to rebalance water supply and ecological outcomes by requiring 40% of the flow to remain in-stream in the Tuolumne River and other tributaries between February 1 and June 30 each year. This policy impacts water supply diversions serving millions of customers in the San Francisco Bay Area.
View Article and Find Full Text PDFInt J Numer Method Biomed Eng
January 2025
Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
As the number of cerebral aneurysms treated with flow diverters continues to increase, it is important to understand what factors influence not only thrombus formation within the aneurysm cavity but also fibrin accumulation across the device and its associated disruption and blockage of the inflow stream. Both processes contribute to the eventual occlusion of the aneurysm or its continued patency and incomplete occlusion which may require future re-treatment. To investigate fibrin accumulation on flow diverters placed across the neck of cerebral aneurysms, a previously developed computational model that couples flow and fibrin dynamics is used in combination with experimental in vitro models of cerebral aneurysms treated with flow diverters.
View Article and Find Full Text PDFPLoS One
December 2024
Department of Geography, National Taiwan Normal University, Taipei, Taiwan.
The impact of flood diversion channels on river sediment transport has been rarely reported. This study uses the Yuanshantze flood diversion tunnel (YFDT), which was commissioned in July 2005 in Taiwan, as an example. This study calculates the sediment transport in the Keelung River from 1997 to 2018 by using seasonal rating curves, in the form of aQb.
View Article and Find Full Text PDFDiscoveries (Craiova)
December 2023
Department of Medicine, Faculty of Medicine, Tbilisi State Medical University, Tbilisi, Georgia.
Brain aneurysms, also known as cerebral aneurysms, are the growths of the parent artery. Based on their shape, aneurysms can be categorized as saccular or non-saccular. Several factors have been linked to multiple brain aneurysms but the most prevalent is arterial hypertension.
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