Background: In the treatment of giant cerebral aneurysms with flow-diverting stents, access to the distal parent artery is critical but occasionally challenging. This article provides our experience with a novel steerable microcatheter in such a situation, as well as a review of the literature.
Case Description: A 73-year-old woman presented with right ptosis and external ophthalmoplegia. Magnetic resonance angiography revealed a giant right cavernous internal carotid artery aneurysm. Endovascular treatment was planned with flow diversion, but distal access was not possible using the standard technique. A 2.4-Fr steerable microcatheter, Leonis Mova Selective, was implemented, and by bending the catheter tip toward the distal parent artery, a guidewire could be guided distally. After the catheter exchange, two flow-diverting stents were deployed successfully.
Conclusion: Steerable microcatheters may provide an option in treatment with flow-diverting stents for giant cerebral aneurysms where access to the distal parent artery is compromised.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10927168 | PMC |
http://dx.doi.org/10.25259/SNI_974_2023 | DOI Listing |
J Neuroendovasc Ther
October 2024
Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
Objective: A Leonis Mova (LM; SB Kawasumi, Kanagawa, Japan), one of the steerable microcatheters, has a remote-controlled flexible catheter tip manipulated with a dial in the hand grip, which enables operators to overcome complicated branching in endovascular surgeries. We report a case of a pituitary tumor in which the LM worked effectively as a distal access catheter (DAC) in tumor embolization.
Case Presentation: A female patient in her 70s complained of bitemporal hemianopsia, and an MRI revealed a pituitary tumor that appeared hypervascular.
Cancer Diagn Progn
November 2024
Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata, Japan.
Background/aim: Although transarterial chemo-embolization (TACE) is a key treatment for hepatocellular carcinoma (HCC), its effectiveness depends on the cannulation of the microcatheter tip into the feeding artery. Steerable microcatheters allow remote operation of the tip, enabling its insertion into feeding arteries otherwise difficult to reach. This study investigated the indications and effectiveness of steerable microcatheters in TACE for HCC.
View Article and Find Full Text PDFJ Neurosurg Case Lessons
November 2024
Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
J Neuroendovasc Ther
July 2024
Department of Comprehensive Strokology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
Objective: LEONIS Mova (SB-KAWASUMI LABORATORIES, Kanagawa, Japan, hereinafter called LEONIS Mova) is a steerable microcatheter (MC) that enables angle adjustment of the catheter tip using a hand-operated dial. LEONIS Mova may be useful for flow diverter placement when access to the distal parent artery with a conventional MC and microguidewire (MGW) is considered difficult or impossible. Here, we report three such cases encountered during flow diverter placement in large and giant internal carotid artery aneurysms.
View Article and Find Full Text PDFJ Invasive Cardiol
August 2024
Department of Interventional Cardiology, Asklepeion General Hospital, Athens, Greece. Email:
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