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Vessel sealing

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https://www.readbyqxmd.com/read/28799873/-birdlime-technique-using-tachosil-tissue-sealing-sheet-soaked-with-fibrin-glue-for-sutureless-vessel-transposition-in-microvascular-decompression-operative-technique-and-nuances
#1
Naoki Otani, Terushige Toyooka, Kazuya Fujii, Kosuke Kumagai, Satoru Takeuchi, Arata Tomiyama, Yasuaki Nakao, Takuji Yamamoto, Kojiro Wada, Kentaro Mori
OBJECTIVE Microvascular decompression (MVD) is effective for the treatment of trigeminal neuralgia (TN), hemifacial spasm (HFS), and glossopharyngeal neuralgia. The transposition technique is the standard procedure to avoid adhesions and granuloma around the decompression site but is more complex and difficult to perform than the interposition technique. The authors describe a simple and safe MVD transposition procedure they call the "birdlime" technique, which uses a tissue glue-coated collagen sponge soaked with fibrin glue, and the results of this technique...
August 11, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28797144/gypsum-in-animal-slurry-systems-enhances-generation-of-hydrogen-sulphide-and-increases-occupational-exposure-hazard
#2
Brian Crook, Stephen Stagg, Alison Bowry, Gillian Frost
Hydrogen sulphide gas (H2S) produced by sulphate reducing bacteria (SRB) in stored animal slurry is highly toxic and, if emitted into poorly ventilated confined spaces, can build up to concentrations capable of causing asphyxiation. Therefore it is important to understand factors influencing H2S emission from slurry. Powdered gypsum (hydrated calcium sulphate) may be used as animal bedding and, if it enters slurry systems, could be metabolised by SRB and further increase H2S generation. Cattle slurry and cattle bedding collected from farms was used in laboratory-scale experiments sealed in 20litre vessels fitted with mechanical stirrers...
August 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28753648/lipoxin-a4-encapsulated-in-plga-microparticles-accelerates-wound-healing-of-skin-ulcers
#3
Mouzarllem Barros Reis, Priscilla Aparecida Tartari Pereira, Guilherme Ferreira Caetano, Marcel Nani Leite, Alyne Fávero Galvão, Francisco Wanderley Garcia Paula-Silva, Marco Andrey Cipriani Frade, Lúcia Helena Faccioli
Lipoxin A4 (LXA4) is involved in the resolution of inflammation and wound healing; however, it is extremely unstable. Thus, to preserve its biological activities and confer stability, we encapsulated LXA4 in poly-lactic-co-glycolic acid (PLGA) microparticles (LXA4-MS) and assessed its application in treating dorsal rat skin lesions. Ulcers were sealed with fibrin adhesive and treated with either LXA4-MS, unloaded microparticles (Un-MS), soluble LXA4, or PBS/glue (vehicle). All groups were compared at 0, 2, 7, and 14 days post-lesions...
2017: PloS One
https://www.readbyqxmd.com/read/28702732/distribution-of-populations-of-ringed-seal-phoca-hispida-and-bearded-seal-erignathus-barbatus-in-shallow-and-average-deep-areas-of-the-southwestern-part-of-the-kara-sea-in-summer-2015
#4
Yu I Goryaev, N G Chelintsev, A V Ezhov, P R Makarevich, D G Ishkulov
In August-September 2015 in the southwest part of the Kara Sea, visual censuses of ringed seal (Phoca hispida) and bearded seal (Erignatus barbatus) from research vessels were carried out in the water area of 49 814 km(2). For the first time, for calculation of abundance and density on ice-free area the SEAL-CALCULATION (TYULEN-RASCHET) software was used with application of separate extrapolation method by the selected sectors. Calculation for the whole census polygon yielded abundance of ringed seal of 4163 ± 16...
May 2017: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/28697937/complications-after-endovascular-treatment-of-hepatic-artery-stenosis-after-liver-transplantation
#5
Leighton E Goldsmith, Kristy Wiebke, John Seal, Clayton Brinster, Taylor A Smith, Hernan A Bazan, W Charles Sternbergh
BACKGROUND: Hepatic artery stenosis (HAS) after liver transplantation can progress to hepatic artery thrombosis (HAT) and a subsequent 30% to 50% risk of graft loss. Although endovascular treatment of severe HAS after liver transplantation has emerged as the dominant method of treatment, the potential risks of these interventions are poorly described. METHODS: A retrospective review of all endovascular interventions for HAS after liver transplantation between August 2009 and March 2016 was performed at a single institution, which has the largest volume of liver transplants in the United States...
July 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28691051/peroral-endoscopic-myotomy-using-flushknife-bt-a-single-center-series
#6
Shinwa Tanaka, Takashi Toyonaga, Fumiaki Kawara, Ian S Grimm, Namiko Hoshi, Hirofumi Abe, Yoshiko Ohara, Yoshinori Morita, Eiji Umegaki, Takeshi Azuma
BACKGROUND AND STUDY AIMS : Peroral endoscopic myotomy (POEM) is an evolving new treatment strategy for achalasia. Although several kinds of electrosurgical knives have been used in performing POEM, the best device has yet to be determined. The FlushKnife BT is a waterjet-emitting short needle-knife with a small ball tip (BT) that offers the potential to perform all aspects of POEM with a single device. In this study, we evaluated the safety and efficiency of the FlushKnife BT for POEM...
July 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28689943/real-life-experience-with-ovation-stent-graft-lesson-learned-from-first-hundred-fifty-treated-patients
#7
Pasqualino Sirignano, Wassim Mansour, Chiara Pranteda, Andrea Siani, Federico Accrocca, Alessandro d'Adamo, Laura Capoccia, Francesco Speziale
OBJECTIVES: To report immediate and mid-term results of an unselected population of patients treated for abdominal aortic aneurysms (AAA) by endovascular repair (EVAR) using the Ovation stent-graft. MATERIALS AND METHODS: A double-center retrospective study was conducted on a prospectively collected database between 2012 and 2015. One hundred fifty-six elective patients were included. The outcome measures considered for analysis were primary technical success,30-day and midterm reintervention, and all-cause and AAA-related mortality rates...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28658522/platelet-activation-by-crushed-and-uncrushed-muscle-a-flow-cytometry-analysis
#8
Alistair Jukes, Dijana Miljkovic, P J Wormald, Alkis J Psaltis
BACKGROUND: Crushed autologous muscle is used in skull base surgery in the acute phase of major arterial hemorrhage to stop bleeding. The mechanism of this is not yet clear, but is thought to involve the formation of a platelet plug, which seals the vessel wall defect but still allows ongoing blood flow to the brain. METHODS: In this study we use flow cytometry to replicate the in-vivo actions of crushed muscle on platelets in whole blood. We compare the ratio of activation of platelets exposed to crushed and uncrushed muscle supernatant in control patients and in patients on antiplatelet agents...
June 28, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28651572/efficacy-of-a-seal-wing-paclitaxel-eluting-balloon-catheters-in-the-treatment-of-bare-metal-stent-restenosis
#9
Leos Pleva, Pavel Kukla, Jana Zapletalova, Ota Hlinomaz
BACKGROUND: Our study aimed to compare the efficacy of seal-wing paclitaxel-eluting balloon catheters (PEB) with iopromide-coated PEB and everolimus-eluting stents (EES) for treating bare metal stent restenosis (BMS-ISR). METHODS: We enrolled 64 patients with 69 BMS-ISR. The control group comprised patients from the iopromide-PEB and EES arms of a previous TIS study. The primary end-point was 12-month in-segment late lumen loss (LLL). Secondary end-points included incidence of binary in-stent restenosis and 12-month major adverse cardiac events (MACE)...
June 26, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28638941/subcutaneous-endoscopically-assisted-ligation-of-spermatic-vessels-seal-sv-using-an-epidural-spinal-needle-a-novel-technique-to-repair-adolescent-varicocele
#10
Furan Wang, Yi Chen, Junfeng Zhao, Hongji Zhong, Yan Li, Zhan Shi
We describe a novel technique of subcutaneous endoscopically assisted ligation of spermatic vessels (SEAL-SV) using a modified epidural-&-spinal needle. This technique achieves very cosmetic and minimally invasive outcomes. We have successfully performed SEAL-SV for five consecutive boys and considered it a simple, safe, and effective procedure for adolescent varicoceles.
August 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28621591/rates-of-intraoperative-complications-and-conversion-to-laparotomy-during-laparoscopic-ovariectomy-performed-by-veterinary-students-161-cases-2010-2014
#11
Adam M Nylund, Adam Drury, Heather Weir, Eric Monnet
OBJECTIVE To assess rates of intraoperative complications and conversion to laparotomy associated with supervised veterinary students performing laparoscopic ovariectomy in dogs. DESIGN Retrospective case series. ANIMALS 161 female shelter dogs for which elective laparoscopic ovariectomy had been performed by supervised senior (fourth-year) veterinary students from 2010 through 2014. PROCEDURES Medical records of all dogs were reviewed and data collected regarding duration of surgery, surgical complications and other characteristics, and whether conversion to laparotomy was required...
July 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28621512/endovascular-redo-aortic-surgery
#12
Jacob Budtz-Lilly, Kiattisak Hongku, Björn Sonesson, Nuno Dias, Tim Resch
Endovascular redo aortic operations are a challenging undertaking. Techniques for treatment date almost as far back as the original open repair itself. Risk factors for failure following aortic repair include larger AAA necks, severe neck angulation, as well as clinical variables such as age, family history, obesity and chronic obstructive pulmonary disease. The armamentarium of endovascular treatments is vast and increasing. Aside from provisional embolization of endoleaks or deferment to open repair conversion, attention should be directed toward obtaining adequate proximal and distal sealing...
June 16, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28604140/is-the-bipolar-vessel-sealer-device-an-effective-tool-in-robotic-surgery-a-retrospective-analysis-of-our-experience-and-a-meta-analysis-of-the-literature-about-different-robotic-procedures-by-investigating-operative-data-and-post-operative-course
#13
Monica Ortenzi, Roberto Ghiselli, Maddalena Baldarelli, Luca Cardinali, Mario Guerrieri
BACKGROUND: The latest robotic bipolar vessel sealing tools have been described to be effective allowing to perform procedures with reduced blood loss and shorter operative times. The aim of this study was to assess the efficacy and reliability of these devices applied in different robotic procedures. MATERIAL AND METHODS: All robotic operations, between 2014 and 2016, were performed using the EndoWrist One VesselSealer (EWO, Intuitive Surgical, Sunnyvale, CA), a bipolar fully wristed device...
June 12, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28596949/new-methodologies-for-the-preparation-of-carbon-11-labeled-radiopharmaceuticals
#14
REVIEW
Kenneth Dahl, Christer Halldin, Magnus Schou
PURPOSE: This short review aims to cover the more recent and promising developments of carbon-11 ((11)C) labeling radiochemistry and its utility in the production of novel radiopharmaceuticals, with special emphasis on methods that have the greatest potential to be translated for clinical positron emission tomography (PET) imaging. METHODS: A survey of the literature was undertaken to identify articles focusing on methodological development in (11)C chemistry and their use within novel radiopharmaceutical preparation...
2017: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28550708/rapid-sealing-of-porcine-renal-blood-vessels-ex-vivo-using-a-high-power-1470-nm-laser-and-laparoscopic-prototype
#15
Luke A Hardy, Thomas C Hutchens, Eric R Larson, David A Gonzalez, Chun-Hung Chang, William H Nau, Nathaniel M Fried
No abstract text is available yet for this article.
May 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28529666/a-microfluidic-model-of-hemostasis-sensitive-to-platelet-function-and-coagulation
#16
R M Schoeman, K Rana, N Danes, M Lehmann, J A Di Paola, A L Fogelson, K Leiderman, K B Neeves
Hemostasis is the process of sealing a vascular injury with a thrombus to arrest bleeding. The type of thrombus that forms depends on the nature of the injury and hemodynamics. There are many models of intravascular thrombus formation whereby blood is exposed to prothrombotic molecules on a solid substrate. However, there are few models of extravascular thrombus formation whereby blood escapes into the extravascular space through a hole in the vessel wall. Here, we describe a microfluidic model of hemostasis that includes vascular, vessel wall, and extravascular compartments...
February 2017: Cellular and Molecular Bioengineering
https://www.readbyqxmd.com/read/28526110/pulmonary-artery-sealing-with-ultrasonic-energy-in-open-lobectomy-a-phase-i-clinical-trial
#17
Eric Goudie, Vicky Thiffault, Adeline Jouquan, Edwin Lafontaine, Pasquale Ferraro, Moishe Liberman
OBJECTIVE: Pulmonary artery branch sealing in video-assisted thoracoscopic surgical lobectomy is usually achieved with vascular endostaplers. Iatrogenic pulmonary artery injury may be caused by endostaplers. We evaluated the safety of pulmonary artery sealing with an ultrasonic energy vessel-sealing device in a phase I clinical trial evaluating in vivo safety of the device during open lobectomy. METHODS: Patients scheduled to undergo elective open (thoracotomy) pulmonary lobectomy were prospectively enrolled...
June 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28516101/early-spontaneous-resolution-of-an-iatrogenic-acute-type-a-aortic-dissection
#18
Mohammad A Zafar, Philip Y K Pang, Glen A Henry, Bulat A Ziganshin, Maryann Tranquilli, John A Elefteriades
Acute aortic dissection is a rare but devastating complication during cardiac catheterization. We present the case of an elderly female who incurred a Stanford Type A/DeBakey Type I acute aortic dissection extending into the arch vessels and descending aorta likely occurring during right coronary artery engagement for angioplasty. The patient was treated successfully by immediately sealing the entrance of the dissection via the placement of a stent and anti-impulse therapy. Follow-up computed tomography scan showed complete resolution of the dissection within one month...
December 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28509693/microcirculatory-effects-of-botulinum-toxin-a-in-the-rat-acute-and-chronic-vasodilation
#19
Roberto Giorgio Aru, Somjade Jay Songcharoen, Samantha R Seals, Peter B Arnold, Robert L Hester
BACKGROUND: Botulinum toxin-A (BTX) has numerous cosmetic and therapeutic applications. Our previous studies have found that BTX augments pedicled flap survival through both vasodilatory effects and attenuation of the inflammatory response to ischemia in the rat. This study examines the effect of chronic BTX on microcirculatory vascular tone and its response to acute topical vasodilators in muscle flaps. METHODS: The spinotrapezius muscle of Sprague-Dawley rats underwent a single 2-week pretreatment of 0...
July 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28503009/performance-of-metal-and-polymeric-o-ring-seals-during-beyond-design-basis-thermal-conditions
#20
Jiann C Yang, Edward Hnetkovsky, Doris Rinehart, Marco Fernandez, Felix Gonzalez, Joseph Borowsky
This paper summarizes the small scale thermal exposure test results of the performance of metallic and polymeric O-ring seals typically used in radioactive material transportation packages. Five different O-ring materials were evaluated: Inconel/silver, ethylene-propylene diene monomer (EPDM), polytetrafluoroethylene (PTFE), silicone, butyl, and Viton. The overall objective of this study is to provide test data and insights to the performance of these Oring seals when exposed to beyond-design-basis temperature conditions due to a severe fire...
April 2017: Polymer Testing
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