Hiatal hernias are at high risk of recurrence. Mesh reinforcement after primary approximation of the hiatal crura has been advocated to reduce this risk of recurrence, analogous to mesh repair of abdominal wall hernias. However, the results of such repairs have been mixed, at best. In addition, repairs using some type of mesh have led to significant complications, such as erosion and esophageal stricture. At present, there is no consensus as to (1) whether mesh should be used, (2) indications for use, (3) the type of mesh, and (4) in what configuration. This lack of consensus is likely secondary to the notion that recurrence occurs at the site of crural approximation. We have explored the theory that many, if not most, "recurrences" occur in the anterior and left lateral aspects of the hiatus, normally where the mesh is not placed. We theorized that "recurrence" actually represents progression of the hernia, rather than a true recurrence. This has led to our development of a new mesh configuration to enhance the tensile strength of the hiatus and counteract continued stresses from intra-abdominal pressure.
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http://dx.doi.org/10.1590/0102-672020220002e1710 | DOI Listing |
J Radiol Prot
January 2025
Department of Mechanical Engineering, University of Houston, Houston, 77204, UNITED STATES.
Although the Boundary Representation (BREP) method creates detailed surface phantoms of Chinese women of childbearing age, these phantoms cannot be directly used in Monte Carlo simulations. They must first be converted into voxel phantoms, a process that may diminish some of the inherent advantages of the surface phantoms. Therefore, the aim of this study is to construct a tetrahedral mesh (TM) phantom of Chinese women of childbearing age based on the BREP phantom, incorporating micron-level structural refinements to certain organ tissues while maintaining the original model's structure.
View Article and Find Full Text PDFGenome
January 2025
Dalhousie University, Biology, Halifax, Nova Scotia, Canada;
The actin cytoskeleton is a dynamic mesh of filaments that provide structural support for cells and respond to external deformation forces. Active sensing of these forces is crucial for the function of the actin cytoskeleton, and some actin crosslinkers accomplish it. One such crosslinker is filamin, a highly conserved actin crosslinker dimeric protein with an elastic region capable of responding to mechanical changes in the actin cytoskeleton.
View Article and Find Full Text PDFAssist Technol
January 2025
MAKE+ Applied Research, British Columbia Institute of Technology, Burnaby, British Columbia, Canada.
Manual wheelchairs can promote independence among users. However, the user's level of disability, strength, stamina, and the environmental conditions within which the wheelchair is used may limit manual wheelchair functionality. The use of power assist add-ons may mitigate these limitations and help individuals to age in place.
View Article and Find Full Text PDFPacing Clin Electrophysiol
January 2025
Section of Laboratory for Animal Experiments, Institute of Medical Science, Medical Research Support Center, Nihon University, School of Medicine, Tokyo, Japan.
Background: Neither the actual in vivo tissue temperatures reached with a novel contact force sensing catheter with a mesh-shaped irrigation tip (TactiFlex SE, Abbott) nor the safety profile has been elucidated.
Methods: In a porcine model (n = 8), thermocouples were implanted epicardially in the superior vena cava, right pulmonary vein, and esophagus close to the inferior vena cava following a right thoracotomy. After chest closure, endocardial ablation was conducted near the thermocouples under fluoroscopic guidance.
Vet Surg
January 2025
University Equine Hospital, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Objectives: To report the management and outcomes of five horses with ear skin defects treated with the use of full-thickness mesh grafts and full-thickness Meek micrografts.
Animals: Five horses with acute or granulating pinna skin wounds.
Study Design: Short case series.
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