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https://www.readbyqxmd.com/read/29219861/sacrocolpopexy-with-concomitant-total-vs-supracervical-hysterectomy-functional-support-comparisons-in-cadavers
#1
Pedro Antonio Maldonado, Kyle P Norris, Maria E Florian-Rodriguez, Nemi M Shah, Clifford Y Wai
OBJECTIVE: This study aimed to compare the ability of abdominal sacrocolpopexy (ASC) with concomitant total vs supracervical hysterectomy to resist downward traction as a measure of functional anatomic support in human cadavers. METHODS: Supracervical hysterectomy was performed on unembalmed cadaver specimens, followed by ASC attaching polypropylene mesh to the posterior cervix/vagina only and then the anterior and posterior cervix/vagina. Using a metal bolt placed through the cervix tied to a filament passing through a fixed pulley system, successive weights of 0...
December 7, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/29171275/single-use-polyetheretherketone-peek-solid-phase-microextraction-transmission-mode-spme-tm-devices-for-rapid-screening-and-quantitation-of-drugs-of-abuse-in-oral-fluid-and-urine-via-direct-analysis-in-real-time-tandem-mass-spectrometry-dart-ms-ms
#2
Tijana Vasiljevic, German Augusto Gómez-Riós, Janusz Pawliszyn
The analysis of oral fluid (OF) and urine samples to detect recent drug consumption has garnered considerable attention as alternative and less invasive biological matrices. Indeed, several groups have demonstrated that efficiently combining microex-traction and ambient ionization technologies can facilitate the rapid determination of target compounds in such biofluids at trace levels (low or sub ng mL-1). However, there is still a need for biocompatible devices that can both be implemented for in-vivo sampling and easily interfaced with mass-spectrometry (MS) analyzers...
November 24, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29147897/vacuum-assisted-wound-closure-with-mesh-mediated-fascial-traction-achieves-better-outcomes-than-vacuum-assisted-wound-closure-alone-a-comparative-study
#3
Giuseppe Salamone, Leo Licari, Giovanni Guercio, Albert Comelli, Mirko Mangiapane, Nicolò Falco, Roberta Tutino, Noemi Bagarella, Sofia Campanella, Calogero Porrello, Roberto Gullo, Gianfranco Cocorullo, Gaspare Gulotta
BACKGROUND: Open abdomen (OA) permits the application of damage control surgery principles when abdominal trauma, sepsis, severe acute peritonitis and abdominal compartmental syndrome (ACS) occur. METHODS: Non-traumatic patients treated with OA between January 2010 and December 2015 were identified in a prospective database, and the data collected were retrospectively reviewed. Patients' records were collected from charts and the surgical and intensive care unit (ICU) registries...
November 16, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29108751/three-dimensional-reconstructions-of-ct-scans-and-cone-beam-ct-of-impacted-maxillary-canines-in-order-to-locate-areas-of-ankylosis-before-orthodontic-traction
#4
Florian Plaisance, Jean-Baptiste Kerbrat, Patrick Goudot
PURPOSE: The aim of this study was to model impacted maxillary canines and determine whether areas of ankylosis were present before undertaking orthodontic traction. MATERIAL AND METHODS: Amira/ResolveRT™ software, version 5.0, by FEI Company is a meshing and surface-rendering program that was used to produce three-dimensional reconstructions from CT scans and cone beam images of the impacted canines of 30 patients (10 cone beam files and 20 CT scan files). RESULTS AND DISCUSSION: The presence of zones of ankylosis on the roots of certain impacted canines is revealed by the inversion of the direction of meshing on the tooth surface and on a larger scale by invagination of bone tissue into the tooth tissue at various densities measured in Hounsfield units by the AMIRA™ software program...
November 3, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29033336/open-abdomen-therapy-with-vacuum-and-mesh-mediated-fascial-traction-after-aortic-repair-an-international-multicentre-study
#5
Stefan Acosta, Arne Seternes, Maarit Venermo, Leena Vikatmaa, Karl Sörelius, Anders Wanhainen, Mats Svensson, Khatereh Djavani, Martin Björck
OBJECTIVES: Open abdomen therapy may be necessary to prevent or treat abdominal compartment syndrome (ACS). The aim of the study was to analyse the primary delayed fascial closure (PDFC) rate and complications after open abdomen therapy with vacuum and mesh mediated fascial traction (VACM) after aortic repair and to compare outcomes between those treated with open abdomen after primary versus secondary operation. METHODS: This was a retrospective cohort, multicentre study in Sweden, Finland, and Norway, including consecutive patients treated with open abdomen and VACM after aortic repair at six vascular centres in 2006-2015...
October 12, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28800493/efficient-simulation-of-elastic-guided-waves-interacting-with-notches-adhesive-joints-delaminations-and-inclined-edges-in-plate-structures
#6
Hauke Gravenkamp
This paper presents an approach to model transmission and reflection phenomena of elastic guided waves in plates. The formulation is applied to plate structures containing notches, inclined edges, delaminations or (adhesive) joints. For these cases, only the thickness direction of the structure needs to be discretized at several locations, while the direction of propagation is described analytically. Consequently, the number of degrees of freedom is very small. Semi-infinite domains can be modeled, in which case the radiation condition is fulfilled exactly...
January 2018: Ultrasonics
https://www.readbyqxmd.com/read/28733748/preoperative-botulinum-toxin-a-enabling-defect-closure-and-laparoscopic-repair-of-complex-ventral-hernia
#7
Omar Rodriguez-Acevedo, Kristen E Elstner, Anita S W Jacombs, John W Read, Rodrigo Tomazini Martins, Fernando Arduini, Michael Wehrhahm, Colette Craft, Peter H Cosman, Anthony N Dardano, Nabeel Ibrahim
INTRODUCTION: Operative management of complex ventral hernia still remains a significant challenge for surgeons. Closure of large defects in the unprepared abdomen has serious pathophysiological consequences due to chronic contraction and retraction of the lateral abdominal wall muscles. We report outcomes of 56 consecutive patients who had preoperative Botulinum toxin A (BTA) abdominal wall relaxation facilitating closure and repair. METHODS: This was a prospective observational study of 56 patients who underwent ultrasound-guided BTA into the lateral abdominal oblique muscles prior to elective ventral hernia repair between November 2012 and January 2017...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28502075/vacuum-assisted-wound-closure-and-mesh-mediated-fascial-traction-for-open-abdomen-therapy-a-systematic-review
#8
Stefan Acosta, Martin Björck, Ulf Petersson
BACKGROUND: The aim of this paper was to review the literature on vacuum-assisted wound closure and mesh-mediated fascial traction (VAWCM) in open abdomen therapy. It was designed as systematic review of observational studies. METHODS: A Pub Med, EMBASE and Cochrane search from 2007/01-2016/07 was performed combining the Medical Subject Headings "vacuum", "mesh-mediated fascial traction", "temporary abdominal closure", "delayed abdominal closure", "open abdomen", "abdominal compartment syndrome", "negative pressure wound therapy" or "vacuum assisted wound closure"...
2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28465431/vimentin-fibers-orient-traction-stress
#9
Nancy Costigliola, Liya Ding, Christoph J Burckhardt, Sangyoon J Han, Edgar Gutierrez, Andressa Mota, Alex Groisman, Timothy J Mitchison, Gaudenz Danuser
The intermediate filament vimentin is required for cells to transition from the epithelial state to the mesenchymal state and migrate as single cells; however, little is known about the specific role of vimentin in the regulation of mesenchymal migration. Vimentin is known to have a significantly greater ability to resist stress without breaking in vitro compared with actin or microtubules, and also to increase cell elasticity in vivo. Therefore, we hypothesized that the presence of vimentin could support the anisotropic mechanical strain of single-cell migration...
May 16, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28382564/intensive-care-and-health-outcomes-of-open-abdominal-treatment-long-term-results-of-vacuum-assisted-wound-closure-and-mesh-mediated-fascial-traction-vawcm
#10
A Willms, S Schaaf, R Schwab, I Richardsen, C Jänig, D Bieler, B Wagner, C Güsgen
PURPOSE: The study's purpose is to evaluate the long-term outcome after vacuum-assisted wound closure and mesh-mediated fascial traction (VAWCM) and to identify predictors of quality of life associated with intensive care. METHODS: Fifty-five patients who underwent open abdomen management at our institution from 2006 to 2013 were prospectively enrolled in this study. After a median follow-up period of 3.8 years, 27 patients completed the 36-Item Short Form Survey (SF-36) quality of life questionnaire...
May 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28338592/open-abdomen-with-vacuum-assisted-wound-closure-and-mesh-mediated-fascial-traction-in-patients-with-complicated-diffuse-secondary-peritonitis-a-single-center-8-year-experience
#11
Matti Tolonen, Panu Mentula, Ville Sallinen, Suvi Rasilainen, Minna Bäcklund, Ari Leppäniemi
BACKGROUND: Open abdomen (OA) treatment in patients with peritonitis is increasing worldwide. Various temporary abdominal closure devices are being used. This study included patients with complicated diffuse secondary peritonitis, OA, and vacuum-assisted wound closure and mesh-mediated fascial traction (VAWCM). The aim of this study was to describe mortality and major morbidity in terms of delayed primary fascial closure and enteroatmospheric fistula rates. METHODS: This was a single-academic-center retrospective study of consecutive patients with diffuse peritonitis, OA, and VAWCM between years 2008 and 2016...
June 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28294574/phase-field-boundary-conditions-for-the-voxel-finite-cell-method-surface-free-stress-analysis-of-ct-based-bone-structures
#12
L H Nguyen, S K F Stoter, T Baum, J S Kirschke, M Ruess, Z Yosibash, D Schillinger
The voxel finite cell method employs unfitted finite element meshes and voxel quadrature rules to seamlessly transfer CT data into patient-specific bone discretizations. The method, however, still requires the explicit parametrization of boundary surfaces to impose traction and displacement boundary conditions, which constitutes a potential roadblock to automation. We explore a phase-field based formulation for imposing traction and displacement constraints in a diffuse sense. Its essential component is a diffuse geometry model generated from metastable phase-field solutions of the Allen-Cahn problem that assumes the imaging data as initial condition...
March 11, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28293789/development-of-an-ovine-model-for-training-in-vaginal-surgery-for-pelvic-organ-prolapse
#13
A Mansoor, S Curinier, S Campagne-Loiseau, L Platteeuw, B Jacquetin, B Rabischong
INTRODUCTION AND HYPOTHESIS: This aim of this study was to evaluate the feasibility and usefulness of an ovine model for training in vaginal surgery. METHODS: Four senior urogynaecological surgeons and five residents attended five sessions of vaginal surgery for pelvic organ prolapse (POP) in five old multiparous female sheep. Urogynaecological examinations were performed and measurements similar to the POP-Q classification in humans were obtained. Standard POP surgical procedures with and without mesh were performed...
March 14, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28265733/major-complex-abdominal-wall-repair-in-contaminated-fields-with-use-of-a-non-cross-linked-biologic-mesh-a-dual-institutional-experience
#14
J J Atema, E J Furnée, Y Maeda, J Warusavitarne, P J Tanis, W A Bemelman, C J Vaizey, M A Boermeester
BACKGROUND: Data on the use of biologic mesh in abdominal wall repair in complex cases remain sparse. Aim of this study was to evaluate a non-cross-linked porcine acellular dermal matrix for repair of complex contaminated abdominal wall defects. METHODS: Retrospective observational cohort study of consecutive patients undergoing abdominal wall repair with use of Strattice™ Reconstructive Tissue Matrix (LifeCell Corporation, Oxford, UK) between January 2011 and February 2015 at two National Intestinal Failure Units...
August 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28191788/full-thickness-skin-mesh-graft-vaginoplasty-a-skin-sparing-technique
#15
Guilherme Lang Motta, Patric Machado Tavares, Gabriel Veber Moisés Silva, Milton Berger, Brasil Silva Neto, Tiago Elias Rosito
INTRODUCTION: The ideal vaginoplasty method should promote good cosmetic and functional results with low morbidity. We describe a new technique for congenital vaginal agenesis using a full-thickness perforated skin graft. MATERIALS AND METHODS: We report an 18 year old patient with vaginal agenesis (Morris syndrome) that undergone a modified version of McIndoe vaginoplasty. Patient is set in a low lithotomy position and lateral traction sutures are placed in labia and a 16Fr urethral catheter inserted...
January 27, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28107224/abdominal-sepsis
#16
Quirine J J Boldingh, Fleur E E de Vries, Marja A Boermeester
PURPOSE OF REVIEW: To summarize the recent evidence on the treatment of abdominal sepsis with a specific emphasis on the surgical treatment. RECENT FINDINGS: A multitude of surgical approaches towards abdominal sepsis are practised. Recent evidence shows that immediate closure of the abdomen has a better outcome. A short course of antibiotics has a similar effect as a long course of antibiotics in patients with intra-abdominal infection without severe sepsis. SUMMARY: Management of abdominal sepsis requires a multidisciplinary approach...
April 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27941356/abdominal-compartment-syndrome-and-the-open-abdomen-any-unresolved-issues
#17
Michael Sugrue
PURPOSE OF REVIEW: This article reviews the key principles of abdominal compartment syndrome and the open abdomen, exploring some of the unresolved issues. It reviews new concepts in care. RECENT FINDINGS: Recent use of peritoneal resuscitation, and benefits of mesh-mediated traction are discussed. Abdominal compartment syndrome remains a result of complex interaction between general haemorrhage, sepsis and fluid resuscitation. Improved resuscitation and sepsis control has decreased but not abolished the need for the open abdomen and progression for abdominal compartment syndrome...
February 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27901277/negative-pressure-wound-therapy-for-prevention-and-treatment-of-surgical-site-infections-after-vascular-surgery
#18
REVIEW
S Acosta, M Björck, A Wanhainen
BACKGROUND: Indications for negative-pressure wound therapy (NPWT) in vascular surgical patients are expanding. The aim of this review was to outline the evidence for NPWT on open and closed wounds. METHODS: A PubMed, EMBASE and Cochrane Library search from 2007 to June 2016 was performed combining the medical subject headings terms 'wound infection', 'abdominal aortic aneurysm (AAA)', 'fasciotomy', 'vascular surgery' and 'NPWT' or 'VAC'. RESULTS: NPWT of open infected groin wounds was associated with shorter duration of wound healing by 47 days, and was more cost-effective than alginate dressings in one RCT...
January 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/27708757/measuring-cellular-traction-forces-on-non-planar-substrates
#19
Jérôme R D Soiné, Nils Hersch, Georg Dreissen, Nico Hampe, Bernd Hoffmann, Rudolf Merkel, Ulrich S Schwarz
Animal cells use traction forces to sense the mechanics and geometry of their environment. Measuring these traction forces requires a workflow combining cell experiments, image processing and force reconstruction based on elasticity theory. Such procedures have already been established mainly for planar substrates, in which case one can use the Green's function formalism. Here we introduce a workflow to measure traction forces of cardiac myofibroblasts on non-planar elastic substrates. Soft elastic substrates with a wave-like topology were micromoulded from polydimethylsiloxane and fluorescent marker beads were distributed homogeneously in the substrate...
October 6, 2016: Interface Focus
https://www.readbyqxmd.com/read/27601035/abdominal-wall-integrity-after-open-abdomen-long-term-results-of-vacuum-assisted-wound-closure-and-mesh-mediated-fascial-traction-vawcm
#20
A Willms, S Schaaf, R Schwab, I Richardsen, D Bieler, B Wagner, C Güsgen
PURPOSE: The open abdomen has become a standard technique in the management of critically ill patients undergoing surgery for severe intra-abdominal conditions. Negative pressure and mesh-mediated fascial traction are commonly used and achieve low fistula rates and high fascial closure rates. In this study, long-term results of a standardised treatment approach are presented. METHODS: Fifty-five patients who underwent OA management for different indications at our institution from 2006 to 2013 were enrolled...
December 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
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