The failure to catheterize distal vessels may preclude optimal endovascular intervention. We present a double wire technique to facilitate the selective placement of catheters into tortuous vasculature when a single wire and catheter technique does not suffice. A wide necked middle cerebral artery (MCA) aneurysm incorporated the origin of the inferior MCA trunk, and despite successful passage of a wire into the distal MCA, the catheter could not be advanced beyond 2 sharp turns at the inferior trunk origin. A second wire was passed through the catheter into the inferior trunk providing adequate stability for advancement of the catheter into the vessel. The distal vessel was successfully catheterized and a stent was placed without complication. The double wire technique may allow the passage of catheters into vessels that are otherwise inaccessible because of tortuosity.
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http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2011.06.002 | DOI Listing |
J Opt Soc Am A Opt Image Sci Vis
August 2024
A symmetrical dual-D and dual-core single-mode fiber surface plasmon resonance (SPR) liquid sensor is designed for biological detection. The dual-core design optimizes the transmission path, improves the momentum matching between free electrons and photons, and facilitates bidirectional coupling, consequently amplifying the SPR effect and enabling sensitive monitoring of the refractive index changes of biological solutions. In this structure, a gold wire is placed in the middle of the polished surface of the double-D-shaped single-mode fiber (SMF) to produce high-quality free electrons and promote the mode-coupling excitation of the SPR effect.
View Article and Find Full Text PDFBeijing Da Xue Xue Bao Yi Xue Ban
February 2025
Second Clinical Division, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100101, China.
Objective: To compare the cyclic fatigue resistance of nickel-titanium files made by 3 new heat treatment in simulated S-shaped root canals at different temperatures.
Methods: Gold heat-treated nickel-titanium files TruNatomy (25 mm, tip size 26#/0.04) and ProTaper Gold (25 mm, tip size 25#/0.
Zhongguo Gu Shang
January 2025
Department of Traumatic Othopeadics, Ningbo No.6 Hospital, Ningbo 315040, Zhejiang, China.
Objective: Investigating the clinical efficacy of treating dorsally displaced distal radial double-column Die-punch fractures using a dorsal approach external fixator combined with Kirschner wires.
Methods: Retrospectively analyzed the clinical data of 15 patients with distal radial double-column Die-punch fractures treated with an external fixator combined with Kirschner wire between July 2020 and January 2023. There were 10 males and 5 females;6 cases on the left side and 9 on the right;age ranged from 22 to 76 years old.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
January 2025
Department of Joint and Bone Surgery, the First Affiliated Hospital of Wannan Medical College, Wuhu Anhui, 241000, P. R. China.
Objective: To explore the feasibility and effectiveness of suture anchor double-pulley technique combined with suture three-dimensional binding via bone tunnel technique for avulsion fractures of the inferior pole of the patella.
Methods: A clinical data of 38 patients with avulsion fractures of the inferior pole of the patella, who met the selective criteria and were admitted between September 2021 and April 2023, was retrospectively analyzed. The fractures were treated with suture anchor double-pulley technique combined with suture three-dimensional binding via bone tunnel technique in 18 cases (group A) and steel wire tension-band fixation in 20 cases (group B).
Introduction: Benign prostatic hyperplasia (BPH) affects a significant proportion of aging males, often requiring surgical intervention when conservative treatments fail.
Case Description: This case report details the management of a 58-year-old male with severe lower urinary tract symptoms and a markedly enlarged prostate, presenting with bladder stones and persistent obstruction despite medication. The patient underwent an open simple prostatectomy but developed bladder neck contracture and recurrent urinary retention, necessitating a suprapubic cystostomy.
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