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https://www.readbyqxmd.com/read/28076623/low-cost-simulator-for-heart-surgery-training
#1
Roberto Rocha E Silva, Artur Lourenção, Maxim Goncharov, Fabio B Jatene
Objective: Introduce the low-cost and easy to purchase simulator without biological material so that any institution may promote extensive cardiovascular surgery training both in a hospital setting and at home without large budgets. Methods: A transparent plastic box is placed in a wooden frame, which is held by the edges using elastic bands, with the bottom turned upwards, where an oval opening is made, "simulating" a thoracotomy. For basic exercises in the aorta, the model presented by our service in the 2015 Brazilian Congress of Cardiovascular Surgery: a silicone ice tray, where one can train to make aortic purse-string suture, aortotomy, aortorrhaphy and proximal and distal anastomoses...
November 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28070600/transvaginal-sacrospinous-ligament-fixation-for-posthysterectomy-vaginal-vault-prolapse-repair
#2
Rodolfo Milani, Matteo Frigerio, Stefano Manodoro
INTRODUCTION AND HYPOTHESIS: Posthysterectomy vaginal vault prolapse repair is a challenge for urogynecologists. Surgical management can be successful with native tissue by the vaginal approach with sacrospinous ligament fixation. However, severe complications have been described, including nerve injury and life-threatening hemorrhage. METHODS: A 68-year-old woman with symptomatic stage III vaginal vault prolapse was admitted for transvaginal sacrospinous ligament fixation according to the described technique...
January 9, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28068869/a-regenerative-cardiac-patch-formed-by-spray-painting-of-biomaterials-onto-the-heart
#3
Junnan Tang, Adam Vandergriff, Zegen Wang, Michael Hensley, Jhon Cores, Tyler Allen, Phuong-Uyen Dinh, Jinying Zhang, Thomas Caranasos, Ke Cheng
Layering a regenerative polymer scaffold on the surface of the heart, termed as a cardiac patch, has been proven to be effective in preserving cardiac function after myocardial infarction. However, the placement of such a patch on the heart usually needs open-chest surgery, which is traumatic therefore prevents the translation of this strategy into the clinic. We sought to device a novel method to apply a cardiac patch by spray painting in situ polymerizable biomaterials onto the heart with a minimally invasive procedure...
January 9, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28065625/decreased-bacterial-adherence-biofilm-formation-and-tissue-reactivity-of-barbed-monofilament-suture-in-an-in%C3%A2-vivo-contaminated-wound-model
#4
Michael R Morris, Christopher Bergum, Nancy Jackson, David C Markel
BACKGROUND: Monofilament and barbed monofilament sutures have been shown in in vitro models to have less bacterial adherence than braided suture. This study evaluates bacterial adherence to suture materials and tissue reactivity with an in vivo contaminated wound mouse model. METHODS: Staphylococcus aureus was used to create an in vivo contaminated wound model at 2 amounts (10(6) colony-forming units [CFU] and 10(8) CFU) using a mouse air pouch. Three types of commonly used absorbable suture were evaluated: braided, monofilament, and barbed monofilament...
November 24, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28053610/evaluation-of-stability-and-biocompatibility-of-phema-pmma-keratoprosthesis-by-penetrating-keratoplasty-in-rabbits
#5
Yawon Hwang, Gonhyung Kim
Artificial corneas have been developed as an alternative to natural donor tissue to replace damaged or diseased corneas. This study was conducted to evaluate the stability and biocompatibility of PHEMA-PMMA [poly (2-hydroxyl methacrylate)-poly (methyl methacrylate)] keratoprostheses in rabbits following penetrating keratoplasty. Sixteen male New Zealand White rabbits aged 16 weeks were divided into three groups. Group I and group II contained six rabbits each, while the control group had four rabbits. Experimental surgery was conducted under general anesthesia...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28052832/fixation-of-regan-morrey-type-ii-coronoid-fractures-a-comparison-of-screws-and-suture-lasso-technique-for-resistance-to-displacement
#6
Nicholas P Iannuzzi, Adrian G Paez, Brent G Parks, Michael S Murphy
PURPOSE: The aim of this study was to compare the load to failure and stiffness achieved in coronoid fractures treated with a posterior-to-anterior screw versus a suture lasso technique. METHODS: We performed a biomechanical study using 10 pairs of fresh-frozen cadaveric elbows. A transverse osteotomy at the midpoint of the coronoid height was created to simulate a Regan-Morrey type II coronoid fracture. The specimens were randomized to screw fixation or suture lasso fixation...
January 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28045719/hepatic-histology-and-morphometric-measurements-in-idiopathic-extrahepatic-portal-vein-thrombosis-in-children-correlated-to-clinical-outcome-of-meso-rex-bypass
#7
Niramol Tantemsapya, Riccardo Superina, Deli Wang, Grace Kronauer, Peter F Whitington, Hector Melin-Aldana
OBJECTIVE: The aim of this study was to correlate clinical, histologic, and morphometric features of the liver in children with extrahepatic portal vein thrombosis (EHPVT), with surgical outcome after Meso-Rex bypass (MRB). BACKGROUND: Idiopathic EHPVT, a significant cause of portal hypertension, is surgically corrected by MRB. Correlation of histologic and morphometric features of the liver with outcome has not been reported in children. METHODS: We retrospectively reviewed clinical and intraoperative data of 45 children with idiopathic EHPVT...
December 30, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/28038405/comprehensive-mechanical-characterization-of-pla-fabric-combined-with-pcl-to-form-a-composite-structure-vascular-graft
#8
Chaojing Li, Fujun Wang, Graeham Douglas, Ze Zhang, Robert Guidoin, Lu Wang
Vascular grafts made by tissue engineering processes are prone to buckling and twisting, which can impede blood flow and lead to collapse of the vessel. These vascular conduits may suffer not only from insufficient tensile strength, but also from vulnerabilities related to compression, torsion, and pulsatile pressurization. Aiming to develop a tissue engineering-inspired blood conduit, composite vascular graft (cVG) prototypes were created by combining a flexible polylactic acid (PLA) knitted fabric with a soft polycaprolactone (PCL) matrix...
December 15, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28035702/refinements-of-nerve-repair-with-connector-assisted-coaptation
#9
REVIEW
Ivica Ducic, Bauback Safa, Erick DeVinney
Peripheral nerve repair can be very rewarding for both surgeon and patient when expected outcomes are achieved. In many cases, however, the results are suboptimal due to number of possible objective and technical reasons. Although we cannot influence patent's comorbidities, the extent or mechanism of the nerve injury, we may help optimize technical details when aiming towards improved outcomes. While the suture coaptation for primary nerve repair or nerve reconstruction with grafting served as the reconstructive standard for many decades, technical imperfections remain threats to reconstructive goals...
December 30, 2016: Microsurgery
https://www.readbyqxmd.com/read/28034773/randomized-clinical-trial-of-ligasure%C3%A2-versus-conventional-splenectomy-for-injured-spleen-in-blunt-abdominal-trauma
#10
Vejdan Seyyed Amirkazem, Khosravi Malihe
BACKGROUND: Spleen is the most common organ damaged in cases of blunt abdominal trauma and splenectomy and splenorrhaphy are the main surgical procedures that are used in surgical treatment of such cases. In routine open splenectomy cases, after laparotomy, application of sutures in splenic vasculature is the most widely used procedure to cease the bleeding. This clinical trial evaluates the role and benefits of the Ligasure™ system in traumatic splenectomy without using any suture materials and compares the result with conventional method of splenectomy...
December 26, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/28012635/the-effect-of-capsulotomy-and-capsular-repair-on-hip-distraction-a-cadaveric-investigation
#11
M Michael Khair, Jeffrey S Grzybowski, Benjamin D Kuhns, Thomas H Wuerz, Elizabeth Shewman, Shane J Nho
PURPOSE: To quantify how increasing interportal capsulotomy size affects the force required to distract the hip and to biomechanically compare simple side-to-side suture repair to acetabular-based suture anchors as capsular repair techniques. METHODS: Twelve fresh-frozen cadaveric hip specimens were dissected to the capsuloligamentous complex of the hip joint and fixed in a material testing system, such that a pure axial distraction of the iliofemoral ligament could be achieved...
December 22, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28011997/do-salivary-bypass-tubes-lower-the-incidence-of-pharyngocutaneous-fistula-following-total-laryngectomy-a-retrospective-analysis-of-predictive-factors-using-multivariate-analysis
#12
Robert W A Hone, Eqramur Rahman, Gentle Wong, Yvette Annan, Victoria Alexander, Ali Al-Lami, Kiran Varadharajan, Michael Parker, Ricard Simo, Lisa Pitkin, Alasdair Mace, Enyinnaya Ofo, Alistair Balfour, Iain J Nixon
Salivary bypass tubes (SBT) are increasingly used to prevent pharyngocutaneous fistula (PCF) following laryngectomy and pharyngolaryngectomy. There is minimal evidence as to their efficacy and literature is limited. The aim of the study was to determine if SBT prevent PCF. The study was a multicentre retrospective case control series (level of evidence 3b). Patients who underwent laryngectomy or pharyngolaryngectomy for cancer or following cancer treatment between 2011 and 2014 were included in the study...
December 23, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28007289/a-new-method-of-chest-drain-wound-closure-using-knotless-suture-material
#13
Min Soo Kim, Jong Ho Cho
Removal of a chest tube drain could be distressful experience for many patients. Pain, unsightly scar, and possible complications such as pneumothorax are common after the removal of a chest tube. A new method of chest drain wound closure using knotless suture material has been employed, which could alleviate pain and unsightly scar. This suture utilizes a unidirectional anchoring barb, which eliminates the need to tie and does not slip back. This new method of wound closure for chest tube site is a convenient method with advantages of leaving a less unsightly scar and less pain during the chest tube removal process...
January 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28007100/iris-fixation-of-posterior-chamber-intraocular-lenses
#14
Alireza Yazdani-Abyaneh, Ali R Djalilian, Masoud Aghsaei Fard
: We introduce a technique for iris fixation of a posterior chamber intraocular lens (IOL) in which most of the procedure is done outside the eye. This minimizes intraocular manipulation, maximizes corneal endothelial preservation, and avoids the risk for IOL drop into the vitreous cavity intraoperatively. The IOL is fixated to the most peripheral part of the iris, resulting in a rounder pupil. Sutures are placed at exact positions on the haptics, resulting in a well-centered IOL. FINANCIAL DISCLOSURE: None of the authors has a financial or proprietary interest in any material or method mentioned...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28005767/the-clinical-feasibility-of-newly-developed-thin-flat-type-bioresorbable-osteosynthesis-devices-for-the-internal-fixation-of-zygomatic-fractures-is-there-a-difference-in-healing-between-bioresorbable-materials-and-titanium-osteosynthesis
#15
Shintaro Sukegawa, Takahiro Kanno, Daiki Nagano, Akane Shibata, Yuka Sukegawa-Takahashi, Yoshihiko Furuki
INTRODUCTION: In recent years, bioresorbable plates have undergone remarkable development. However, there has been no attendant improvement in their strength, because strength requires thickness, and complications such as palpability are related to the thickness of bioresorbable plate systems. In this clinical study, we compared the surgical management of zygomatic fractures using newly developed thinner bioresorbable materials or conventional titanium miniplates. METHODS: Twelve patients with zygomatic fractures were randomly divided equally into 2 groups (6 with new bioresorbable osteosynthesis materials and 6 with standard titanium miniplates)...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27999931/-epithelial-ingrowth-after-evisceration
#16
P L Müller, M C Herwig-Carl, F G Holz, K U Loeffler
A 67-year old patient presented with persistent wound dehiscence after evisceration. The scleral shell and the implant were removed. The histopathological and immunohistochemical examination of the tumor revealed epithelial ingrowth and infection of the implant. Even if the intervention is known since the 16(th) century, technics and materials are still undergoing improvements and discussions. Incarceration or tension on the suture should be avoided in order to prevent secondary complications.
December 20, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27993359/perioperative-management-and-outcomes-of-esophageal-atresia-and-tracheoesophageal-fistula
#17
Dave R Lal, Samir K Gadepalli, Cynthia D Downard, Daniel J Ostlie, Peter C Minneci, Ruth M Swedler, Thomas Chelius, Laura Cassidy, Cooper T Rapp, Katherine J Deans, Mary E Fallat, S Maria E Finnell, Michael A Helmrath, Ronald B Hirschl, Rashmi S Kabre, Charles M Leys, Grace Mak, Jessica Raque, Frederick J Rescorla, Jacqueline M Saito, Shawn D St Peter, Daniel von Allmen, Brad W Warner, Thomas T Sato
BACKGROUND/PURPOSE: Esophageal atresia/tracheoesophageal fistula (EA/TEF) is a rare congenital anomaly lacking contemporary data detailing patient demographics, medical/surgical management and outcomes. Substantial variation in the care of infants with EA/TEF may affect both short- and long-term outcomes. The purpose of this study was to characterize the demographics, management strategies and outcomes in a contemporary multi-institutional cohort of infants diagnosed with EA/TEF to identify potential areas for standardization of care...
December 5, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27989535/history-of-hypospadias-lost-in-translation
#18
REVIEW
Ahmed T Hadidi
: The evolution of hypospadias surgery can be classified under 3 periods that were closely related to advances in surgical instruments, introduction of anesthesia, and newer suture materials. Stretching dominated the early period, tunneling during the Middle Ages, and flaps during the modern period. Suture materials have included at various time silver wires, horsehair, and stainless steel. Examination and translation of the original manuscripts showed that Galen recommended stretching and suturing of glanular hypospadias and not amputation or partial penectomy as has been currently reported...
November 12, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27988054/-suture-simulator-cleft-palate-surgery
#19
F Devinck, S Riot, A Qassemyar, A Belkhou, A Wolber, V Martinot Duquennoy, P Guerreschi
INTRODUCTION: Cleft palate requires surgery in the first years of life, furthermore repairing anatomically the soft and hard palate is complex on a surgical level because of the fine tissues and the local intraoral configuration. It is valuable to train first on simulators before going to the operating room. However, there is no material dedicated to learning how to perform intraoral sutures in cleft palate surgery. We made one, in an artisanal manner, in order to practice before the real surgical gesture...
December 14, 2016: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/27986227/global-surgical-ecosystems-a-need-for-systems-strengthening
#20
Catherine R deVries, Jenna S Rosenberg
BACKGROUND: As surgery is gaining recognition as a critical component of universal health care worldwide, surgical communities have come together with unprecedented unity to advocate for systems to support surgical care. This community has long believed that much care could be performed in a cost-effective manner even in low resource settings, despite skepticism voiced by many in public health. To do so will require the development of new systems and re-vamping of old systems that are not effective...
July 2016: Annals of Global Health
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