Publications by authors named "R Tachi"

Article Synopsis
  • * He was initially treated with corticosteroids but developed refractory pneumothorax, which made managing the air leakage challenging.
  • * The treatment was successfully modified to include mepolizumab, an anti-interleukin-5 therapy, and an endobronchial Watanabe spigot, resulting in the resolution of the pneumothorax and no recurrence of EP post-treatment.
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Article Synopsis
  • - The study explored the use of a straight-shaped 3-Fr guiding sheath (GS) for endovascular treatment (EVT) via transradial artery access (TRA), focusing on patients with small radial artery diameters, specifically those under 2 mm.
  • - A total of 26 cases were treated with the 3-Fr GS, primarily addressing unruptured cerebral aneurysms and other conditions, showing a high success rate of 96.2% without any complications in the first 30 days following the procedures.
  • - The findings suggest that the 3-Fr GS is a promising option for EVT in patients with small radial arteries, enhancing safety and feasibility for treating selected vascular conditions.
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Medical illustrations represent a precious resource for learning surgical anatomy and surgical techniques, allowing preoperative and postoperative reviews. As traditional hand-drawn illustrations are difficult to use and expressing the area of neurointerventional surgery is time-consuming, we proposed methods for neurointerventional surgeons to create digital illustrations (DIs) for neurointerventional surgery using the iPad-exclusive Procreate application (Savage Interactive, Hobart, Australia). Dedicated "digital pens" were created and used for each endovascular device, creating straightforward representations of neurointerventional procedures and changes over time.

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Purpose: Although stent-assisted technique is expected to help provide a scaffold for neointima formation at the orifice of the aneurysm, not all aneurysms treated with stent-assisted technique develop complete neointima formation. The white-collar sign (WCS) indicates neointimal tissue formation at the aneurysm neck that prevents aneurysm recanalization. The aim of this study was to explore factors related to WCS appearance after stent-assisted coil embolization of unruptured intracranial aneurysms (UIAs).

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Article Synopsis
  • - The study examines the effectiveness and safety of using intermediate catheters (IMCs) in triaxial systems for coil embolization of unruptured cerebral aneurysms (UCAs) by comparing two patient groups—those with IMC and those without.
  • - A total of 2430 UCAs from 2259 patients were reviewed, revealing that patients with IMCs had a higher rate of complete occlusion and better coil packing density, with significant statistical differences noted.
  • - Overall, using IMCs during the procedure resulted in improved outcomes without increasing the risk of complications, showing IMCs provide beneficial support in treating UCAs.
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