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Cannulation

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https://www.readbyqxmd.com/read/28813710/is-endoscopic-vasectomy-just-a-dream-an-ex-vivo-study-on-feasibility-and-reliability-of-endoluminal-occlusion-of-porcine-vas-deferens
#1
Daniel Schlager, Moritz Maas, Simon Hein, Fabian Adams, Martin Schoenthaler, Bjoern Spittau, Ulrich Wetterauer, Arkadiusz Miernik
INTRODUCTION AND AIM: Surgical vasectomy remains the gold standard for fertility control in men. Endoluminal occlusion of the seminal ducts, thus avoiding an external incision, may become an appealing alternative to this approach. As our group has shown, nontraumatic endoscopic inspection of the seminal ducts is feasible in the human cadaver. We investigated the feasibility and reliability of occlusion using several commercially available medical sealing agents in the porcine vas deferens (VD)...
August 17, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28810871/effect-of-different-inner-core-diameters-on-structural-strength-of-cannulated-pedicle-screws-under-various-lumbar-spine-movements
#2
Chia-Ming Chang, Yu-Shu Lai, Cheng-Kung Cheng
BACKGROUND: Currently, cannulated pedicle screws have been widely used in minimal invasive or navigation techniques. However, the stress distribution and the strength of different core diameters of cannulated screw are not clear. This study aimed to investigate the mechanical strength of cannulated screws with different inner core diameter under various lumbar spine movements using finite element analysis. RESULTS: The results showed that the von-Mises stress of a cannulated screw was larger than that of a solid screw in all loading conditions, especially above 2 mm in cannulated core diameter...
August 15, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28809629/-talar-neck-fractures-treated-using-percutaneous-screw-fixation
#3
R Veselý, M Kelbl, J Kacián, V Hulka, J Kočiš, R Kunovský
PURPOSE OF THE STUDY Closed reduction and percutaneous fixation of nondisplaced talar neck fractures have been applied by some authors. The aim of this paper is to assess the results and complications of this minimally invasive technique. MATERIAL AND METHODS In the period from 2009 to 2014, twenty-one patients with a talar neck fracture were observed after closed reduction and percutaneous screw fixation in the Traumatological Hospital in Brno. The mean age of the patients was 38 years (range 18-56 years)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28805905/standardized-ileal-digestible-amino-acids-and-digestible-energy-contents-in-high-protein-distiller-s-dried-grains-with-solubles-fed-to-growing-pigs
#4
Y Rho, C Zhu, E Kiarie, C F M de Lange
Chemical composition and, therefore, potential nutritive value of corn distiller's dried grains with solubles (DDGS) is constantly evolving as the ethanol industry innovates processing techniques. We determined standardized ileal digestibility (SID) of AA (Exp. 1) and DE (Exp. 2) contents in high-protein (HP; >40% on a DM basis) DDGS samples. Two HP DDGS (HP-A and HP-B) samples and 1 conventional DDGS (CON) sample were selected for this study. Three semipurified corn starch-based diets (minimum 18% CP, as-fed basis) were formulated with DDGS as the sole source of AA...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805901/effect-of-stocking-density-on-performance-diet-selection-total-tract-digestion-and-nitrogen-balance-among-heifers-grazing-cool-season-annual-forages
#5
B R Brunsvig, A J Smart, E A Bailey, C L Wright, E E Grings, D W Brake
Grazing annual cool-season forages after oat grain harvest in South Dakota may allow an opportunity to increase efficient use of tillable land. However, data are limited regarding effects of stocking density on diet selection, nutrient digestion, performance, and N retention by cattle grazing annual cool-season forage. Heifers were blocked by initial BW (261 ± 11.7 kg) and randomly assigned to 1 of 12 paddocks (1.1 ha) to graze a mixture of grass and brassica for 48 d. Each paddock contained 3, 4, or 5 heifers to achieve 4 replicates of each stocking density treatment...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805469/long-chain-triglycerides-based-self-nanoemulsifying-oily-formulations-sneofs-of-darunavir-with-improved-lymphatic-targeting-potential
#6
Babita Garg, Sarwar Beg, Ranjot Kaur, Rajendra Kumar, Om Prakash Katare, Bhupinder Singh
The current studies entail systematic development of SNEOFs containing long-chain triglycerides for improving lymphatic targeting of darunavir for complete inhibition of HIV progression. As per QbD-oriented approach for formulation development, the QTPP was defined and CQAs were earmarked. Preformulation equilibrium solubility and phase diagram studies, and risk assessment through FMEA studies identified Lauroglycol 90, Tween 80 and Transcutol HP as the lipid, emulgent and cosolvent, respectively, for formulating SNEOFs of darunavir...
August 14, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28803021/effect-of-dietary-supplementation-with-heat-treated-canola-meal-on-ruminal-nutrient-metabolism-in-lactating-dairy-cows
#7
S J Krizsan, H Gidlund, F Fatehi, P Huhtanen
An experiment was conducted to quantify the effects of incremental levels of heat-moisture-treated canola meal (TCM) fed to dairy cows on the relationship between ruminal nutrient digestion and milk production. Experimental diets were fed to 4 multiparous rumen-cannulated Nordic Red cows, averaging (mean ± standard deviation) 681 ± 54.8 kg of body weight, 111 ± 16 d in milk, and 29.1 ± 9.1 kg of milk/d at the start of the study, in a Latin square design with four 21-d periods. The 4 experimental dietary treatments consisted of a basal diet of grass silage and crimped barley, and 3 diets in which the crimped barley was replaced with TCM, giving 3 incremental levels of protein supplementation...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28803010/short-communication-apparent-ruminal-synthesis-of-b-vitamins-in-lactating-dairy-cows-fed-saccharomyces-cerevisiae-fermentation-product
#8
D S Castagnino, Y Ying, M S Allen, R Gervais, P Y Chouinard, C L Girard
Apparent ruminal synthesis and duodenal flow of thiamin, riboflavin, niacin, vitamin B6, folates, and vitamin B12 were evaluated in an experiment using 15 ruminally and duodenally cannulated lactating Holstein cows fed a basal diet, according to a crossover design, supplemented or not with 56 g/d of Saccharomyces cerevisiae fermentation product. Duration of the treatment period was 28 d. The basal ration had 28% neutral detergent fber, 30% starch and 16.5% crude protein; forages were corn silage (67% of forage dry matter) and alfalfa silage (33% of forage dry matter)...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28800742/an-intramedullary-echidna-pin-for-fixation-of-comminuted-clavicle-fractures-a-biomechanical-study
#9
David Ackland, Ian Griggs, Patrick Hislop, Wen Wu, Minoo Patel, Martin Richardson
BACKGROUND: Intramedullary fixation of comminuted mid-shaft clavicle fractures has traditionally been employed with satisfactory clinical outcomes; however, pins with smooth surfaces may protrude from the bone and are prone to migration, while some threaded pins are difficult to remove post-operatively. The aim of this proof-of-concept study was to develop and evaluate the biomechanical strength of a novel intramedullary Echidna pin device designed to maintain fracture reduction, resist migration and facilitate ease of post-operative removal...
August 11, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28799984/lidocaine-spray-as-a-local-analgesic-for-intravenous-cannulation-a-randomized-clinical-trial
#10
Joris Datema, Jeroen Veldhuis, Jolita Bekhof
OBJECTIVES: Lidocaine spray is an effective analgesic of mucous membranes. Lidocaine spray is also used during intravenous (i.v.) cannulation, especially in children. However, the analgesic effect of lidocaine spray during i.v. cannulation has not been studied. We aimed to assess the analgesic effectiveness of lidocaine spray during i.v. cannulation. METHODS: We conducted a randomized, double-blinded, placebo-controlled trial in seventeen healthy adults who received an i...
August 10, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28797911/a-prospective-evaluation-of-radiation-free-direct-solitary-cholangioscopy-for-the-management-of-choledocholithiasis
#11
Monique T Barakat, Mohit Girotra, Abhishek Choudhary, Robert J Huang, Saurabh Sethi, Subhas Banerjee
BACKGROUND AND AIMS: Endoscopy has replaced many radiological studies for the GI tract. However, ERCP remains a hybrid endoscopic-fluoroscopic procedure, which limits its portable delivery, creates delays due to fluoroscopy room unavailability and exposes patients/providers to radiation. We evaluated fluoroscopy/radiation-free management of patients with non-complex choledocholithiasis using direct solitary cholangioscopy (DSC). METHODS: Patients underwent fluoroscopy-free biliary cannulation, sphincterotomy then cholangioscopy to establish location, number/size of stones and document distance from ampulla to bifurcation to guide balloon advancement...
August 7, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28790269/-brain-protection-for-shaggy-aorta-during-aortic-arch-surgery
#12
Kenji Okada
Although short and long-term outcomes of aortic surgeries have been improving over the past decade, the procedure is likely to be asscociated with life-threatening complications such as neurological deficits caused by suboptimal brain protection or heavily diseased aorta. Contemporary strategies for brain protection are deep hypothermic arrest with or without retrograde cerebral perfusion retrograde cerebral perfusion or selective antegrade cerebral perfusion. At the moment, majority of evidences failed to show the superiority of selective antegrade cerebral perfusion to retrograde one...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28780095/short-communication-effect-of-fatty-acid-supplements-on-apparent-ruminal-synthesis-of-b-vitamins-in-lactating-dairy-cows
#13
D S Castagnino, K J Harvatine, M S Allen, R Gervais, P Y Chouinard, C L Girard
The effect of fat supplements (FS) providing different proportions of saturated (SFA) and unsaturated (UFA) fatty acids on supply, apparent ruminal synthesis (ARS), and duodenal flow (DF) of some B vitamins (thiamine, riboflavin, niacin, vitamin B6, folates, and vitamin B12) were evaluated in an experiment using 8 ruminally and duodenally cannulated lactating Holstein cows. The experiment was a replicated 4 × 4 Latin square design with 21-d treatment periods. The 4 treatments were a control diet without fatty acid supplement and 3 diets with 2...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28766018/s2-ai-screw-placement-with-the-aide-of-electronic-conductivity-device-monitoring-a-retrospective-analysis
#14
Faheem A Sandhu, Jason E McGowan, Daniel R Felbaum, Hasan R Syed, Kyle B Mueller
STUDY DESIGN: A retrospective analysis of two consecutive patients who underwent a novel surgical technique. OBJECTIVE: A report of a novel surgical technique utilizing an electronic conductivity device guidance to aide placement of S2-Alar-Iliac (S2-AI) instrumentation. Electronic conductivity guidance for instrumentation of the thoracolumbar spine is an accepted means of improving intraoperative accuracy. Although commercially available for percutaneous techniques, there is a paucity of literature regarding its use...
August 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28765490/incidental-finding-of-persistent-left-superior-vena-cava-after-bubble-study-verification-of-central-venous-catheter
#15
Miguel Agustin Pardinas Gutierrez, Luis A Escobar, Vanessa Blumer, Jorge Luis Cabrera
We report a case of a patient with septic shock who underwent central venous catheter placement in the left internal jugular vein, and a bedside ultrasound 'bubble study' revealed venous cannulation. A chest X-ray postprocedure revealed concern for arterial system catheterisation. However, the possibility of a persistent left superior vena cava was discussed and confirmed with a formal transthoracic echocardiogram and CT. This case demonstrates the importance of ultrasound-guided visualisation of anatomical structures in real time during central venous catheterisation...
July 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28763489/temporal-dynamics-of-in-situ-fiber-adherent-bacterial-community-under-ruminal-acidotic-conditions-determined-by-16s-rrna-gene-profiling
#16
Renee M Petri, Poulad Pourazad, Ratchaneewan Khiaosa-Ard, Fenja Klevenhusen, Barbara U Metzler-Zebeli, Qendrim Zebeli
Subacute rumen acidotic (SARA) conditions are a consequence of high grain feeding. Recent work has shown that the pattern of grain feeding can significantly impact the rumen epimural microbiota. In a continuation of these works, the objective of this study was to determine the role of grain feeding patterns on the colonization and associated changes in predicted functional properties of the fiber-adherent microbial community over a 48 h period. Eight rumen-cannulated Holstein cows were randomly assigned to interrupted or continuous 60%-grain challenge model (n = 4 per model) to induce SARA conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28762638/principles-of-treating-enlarging-pseudoaneurysm-in-a-dialysis-arteriovenous-graft
#17
Daniel V Patel, Tushar J Vachharajani
The arteriovenous graft (AVG) is one of the major types of permanent vascular access used to provide hemodialysis. Complications encountered with AVG use include stenosis, infection, thrombosis, and pseudoaneurysm formation. Venous outflow stenosis along with frequent needle cannulation at the same site can lead to breakdown of the graft material, resulting in pseudoaneurysm formation. In the following case, we illustrate common management principles used to treat pseudoaneurysms. While stent-grafts have been utilized for pseudoaneurysm repair, stent-graft usage is not always optimal...
August 1, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28762565/influence-of-lung-volume-on-the-interaction-between-cardiac-output-and-cerebrovascular-regulation-during-extreme-apnoea
#18
Mike Stembridge, Ryan L Hoiland, Anthony R Bain, Otto F Barak, Ivan Drvis, David B MacLeod, Douglas M MacLeod, Dennis Madden, Tonci Batinic, Peter O'Donoghue, Rob Shave, Zeljko Dujic, Philip N Ainslie
We investigated the role of lung volume-induced changes in cardiac output (Q̇) on cerebrovascular regulation during prolonged apnoea. Fifteen elite apnoea divers (1F; 185 ± 7 cm, 82 ± 12 kg, 29 ± 7 years) attended the laboratory on two separate occasions and completed maximal breath-holds at total lung capacity (TLC) and functional residual capacity (FRC) to elicit disparate cardiovascular responses. Mean arterial pressure (MAP), internal jugular venous pressure (IJVP) and arterial blood gases were measured via cannulation, global cerebral blood flow (gCBF) was quantified by ultrasound and cardiac output via photoplethysmography...
August 1, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28762253/intraocular-robotic-interventional-surgical-system-iriss-mechanical-design-evaluation-and-master-slave-manipulation
#19
Jason T Wilson, Matthew J Gerber, Stephen W Prince, Cheng-Wei Chen, Steven D Schwartz, Jean-Pierre Hubschman, Tsu-Chin Tsao
BACKGROUND: Since the advent of robotic-assisted surgery, the value of using robotic systems to assist in surgical procedures has been repeatedly demonstrated. However, existing technologies are unable to perform complete, multi-step procedures from start to finish. Many intraocular surgical steps continue to be manually performed. METHODS: An intraocular robotic interventional surgical system (IRISS) capable of performing various intraocular surgical procedures was designed, fabricated, and evaluated...
July 31, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28761030/comparison-of-the-trendelenburg-position-versus-upper-limb-tourniquet-on-internal-jugular-vein-diameter
#20
Pelin Karaaslan, Banu Vural Gokay, Muhammet Ahmet Karakaya, Kamil Darcin, Afak Durur Karakaya, Tugrul Ormeci, Emine Arzu Kose
BACKGROUND: Central venous cannulation is a necessary invasive procedure for fluid management, haemodynamic monitoring and vasoactive drug therapy. The right internal jugular vein (RIJV) is the preferred site. Enlargement of the jugular vein area facilitates catheterization and reduces complication rates. Common methods to enlarge the RIJV cross-sectional area are the Trendelenburg position and the Valsalva maneuver. OBJECTIVE: Compare the Trendelenburg position with upper-extremity venous return blockage using the tourniquet technique...
July 2017: Annals of Saudi Medicine
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