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Improving safety in the performance of robotic urinary diversions: a narrative review.
Ther Adv Urol
January 2025
Division of Urology, University of Colorado Denver, Aurora, CO, USA.
Urinary diversions are performed for a wide variety of indications, including bladder removal for cancer treatment, post-cancer treatment complications, trauma, or bladder pain. The robotic approach has been increasingly used in performing urinary diversions since the introduction of the surgical robot. A PubMed keyword search was performed on September 14, 2023 with the terms: robotic and urinary diversion.
View Article and Find Full Text PDFDeformation theory and energy mechanism of cyclic dynamic mechanical damage for granite in the diversion tunnel under cyclic loading-unloading.
iScience
January 2025
Anhui Key Laboratory of Mining Construction Engineering, Anhui University of Science and Technology, Huainan 232001, China.
The diversion tunnel is frequently subjected to cyclic dynamic loads during blasting and mechanical excavation. To explore the theory and mechanism of cyclic dynamic mechanical damage for granite in a diversion tunnel under cyclic loading-unloading, the incremental cyclic loading-unloading test and numerical simulation were conducted on granite samples from the diversion tunnel. According to the mechanical and deformation characteristics of rock samples in the process of cyclic loading-unloading, the stress-strain normalization theory evolution model based on viscoelastoplasticity was established, and the cyclic dynamic damage evolution mechanism of rock samples was revealed.
View Article and Find Full Text PDFA conceptual framework for identifying and managing system vulnerabilities for diversion of controlled substances in healthcare.
Res Social Adm Pharm
January 2025
Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, Suite 425, Toronto, Ontario, M5T 3M6, Canada; Research & Innovation, North York General Hospital, 4001 Leslie Street, Toronto, Ontario, M2K 1E1, Canada.
Purpose: Diversion or theft of controlled substances is a recognized problem affecting healthcare systems globally. The purpose of this study was to develop a framework for identifying and characterizing system factors leading to vulnerabilities for diversion within hospitals.
Methods: We applied a qualitative framework method, which involved 1) compiling a list of critical diversion vulnerabilities through observations and proactive risk analyses in the inpatient pharmacy, emergency department and intensive care unit of two Canadian hospitals; 2) coding the vulnerabilities into deductively and inductively derived themes and subthemes; and 3) building a conceptual framework.
Iatrogenic Proximal Urethro-Rectal Perforation During Foley Catheter Insertion.
Case Rep Surg
January 2025
Department of General Surgery, University of Balamand, Beirut, Lebanon.
Iatrogenic urethral-rectal perforation represents a rare but severe complication arising from medical interventions, notably highlighted in the context of Foley catheter insertion. This case report outlines the presentation, diagnosis, management, and outcomes of a 71-year-old male patient who experienced iatrogenic rectal perforation during the routine insertion of a Foley catheter, against the backdrop of several predisposing factors, such as atrial fibrillation, valvular disease, benign prostatic hyperplasia, urethral stenosis, and colorectal cancer with liver metastasis. The inadvertent creation of a rectourethral fistula during the procedure led to an urgent multidisciplinary approach involving surgery and postoperative management, including fecal and urine diversion and antibiotic therapy.
View Article and Find Full Text PDFHydropower Station diversion tunnel layered excavation deformation mechanism under high crustal stress.
Sci Rep
January 2025
Power China Guiyang Engineering Corporation Limited, Guiyang, China, 550081, Guizhou.
Aiming at the crucial engineering challenge of the ambiguous excavation deformation mechanism of hard and brittle surrounding rock under high geos-tress conditions, with the right bank diversion tunnel at the dam site of the hydropower station as the research object, the deformation and failure characteristics of the surrounding rock and their formation mechanisms during the layered excavation of the diversion tunnel were investigated. The research findings show: (1) The main factors influencing the deformation of the diversion tunnel's surrounding rock are the high ground stress environment, the degree of fracture development in the rock mass, and the effectiveness of the support system. (2) Following the excavation of the first layer, extensive shallow damage predominates, with damaged blocks primarily exhibiting sheet-like and plate-like forms.
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