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https://www.readbyqxmd.com/read/28330437/long-term-outcomes-of-fistula-first-initiative-in-an-urban-university-hospital-is-it-still-relevant
#1
Jacques Greenberg, Senthil Jayarajan, Sridhar Reddy, Frank A Schmieder, Andrew B Roberts, Paul S van Bemmelen, Jean Lee, Eric T Choi
PURPOSE: Dialysis access failure is a major cause of morbidity in patients with end-stage renal disease. The Fistula First Breakthrough Initiative (FFBI) dictates arteriovenous fistulae (AVFs) should be preferred over arteriovenous grafts (AVGs) as first line for surgically placed accesses. The purpose of this study was to compare patency rates of surgical dialysis accesses in our mature, urban population after the FFBI. METHODS: Current dialysis patients with accesses placed between 2006 and 2011 were included...
April 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28329325/comparison-of-radial-and-bilateral-internal-thoracic-artery-grafting-in-patients-with-peripheral-vascular-disease%C3%A2
#2
Dmitry Pevni, Yanai Ben-Gal, Rephael Mohr, Nadav Teich, Zvi Raviv, Amir Kramer, Yosef Paz, Benjamin Medalion, Nahum Nesher
OBJECTIVES: The composite T-graft with radial artery (RA) attached end-to-side to the left internal thoracic artery (ITA) provides arterial myocardial revascularization without the increased risk of deep sternal wound infection associated with harvesting 2 ITAs. However, many surgeons are reluctant to use RA in patients with peripheral vascular disease (PVD) due to concerns regarding the quality of the conduit in this subset of patients. The purpose of this study is to compare early- and long-term outcomes of arterial grafting with bilateral ITAs (BITA) to that of single ITA and RA in patients with PVD...
March 2, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329155/pulmonary-arterial-stiffness-indices-assessed-by-intravascular-ultrasound-in-children-with-early-pulmonary-vascular-disease-prediction-of-advanced-disease-and-mortality-during-20-year-follow-up
#3
Mark-Jan Ploegstra, Jody G M Brokelman, Jolien W Roos-Hesselink, Johannes M Douwes, Lenny M van Osch-Gevers, Elke S Hoendermis, Annemien E van den Bosch, Maarten Witsenburg, Beatrijs Bartelds, Hans L Hillege, Rolf M F Berger
Aims: Prognosis in children with pulmonary vascular disease (PVD) is closely linked to right ventricular (RV) failure due to increased RV-afterload. Pulmonary arterial (PA) stiffening is known to occur early in the course of PVD and constitutes a main component of RV-afterload. This study aimed to evaluate the clinical value of PA-stiffness in children with PVD by determining its association with advanced pulmonary arterial hypertension (PAH) and mortality at long-term follow-up. Methods and results: Forty-one children with various stages of arterial PVD, defined as mean PA-pressure  ≥20 mmHg and/or pulmonary-to-systemic flow-ratio  ≥1...
March 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28325536/self-reported-neuropathic-pain-characteristics-of-women-with-provoked-vulvar-pain-a-preliminary-investigation
#4
Emma Dargie, Ian Gilron, Caroline F Pukall
BACKGROUND: Provoked vestibulodynia (PVD) is a common chronic genital pain condition affecting approximately 12% of premenopausal women. Although parallels have been drawn between PVD and neuropathic pain (NP), no studies have examined self-reported NP characteristics in PVD. AIM: To explore pain symptoms that resemble NP reported by those with PVD and compare responses with those with an established NP condition. METHODS: Women with provoked vulvar pain (PVP; n = 65) completed online questionnaires designed to assess characteristics of NP...
March 15, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28318582/purulent-vaginal-discharge-in-grazing-dairy-cows-risk-factors-reproductive-performance-and-prostaglandin-f2%C3%AE-treatment
#5
M J Giuliodori, M Magnasco, R P Magnasco, I M Lacau-Mengido, R L de la Sota
The objectives of this study were to assess the association of a 4-point scale of vaginal discharge score (VDS) with time to pregnancy to define criteria for a practical case of purulent vaginal discharge (PVD) in dairy cows, to test the risk factors for PVD, and, finally, the effect of a dose of PGF2α on cure and reproductive performance. In experiment 1, grazing Holstein cows (n = 2,414) had their vaginal discharge scored at ∼32 d in milk (DIM) on a 4-point scale, the effect of VDS on the hazard of pregnancy by 300 DIM was then assessed to derive a case definition of PVD...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28306749/cigarette-smoking-and-cardio-renal-events-in-patients-with-atherosclerotic-renal-artery-stenosis
#6
Christopher A Drummond, Pamela S Brewster, Wencan He, Kaili Ren, Yanmei Xie, Katherine R Tuttle, Steven T Haller, Kenneth Jamerson, Lance D Dworkin, Donald E Cutlip, Timothy P Murphy, Ralph B D'Agostino, William L Henrich, Jiang Tian, Joseph I Shapiro, Christopher J Cooper
Cigarette smoking causes cardiovascular disease and is associated with poor kidney function in individuals with diabetes mellitus and primary kidney diseases. However, the association of smoking on patients with atherosclerotic renal artery stenosis has not been studied. The current study utilized data from the Cardiovascular Outcomes in Renal Atherosclerotic Lesions (CORAL, NCT00081731) clinical trial to evaluate the effects of smoking on the risk of cardio-renal events and kidney function in this population...
2017: PloS One
https://www.readbyqxmd.com/read/28297034/the-role-of-posterior-vitreous-detachment-and-vitreomacular-adhesion-in-patients-with-age-related-macular-degeneration
#7
Orhan Ilim, Cezmi Akkin, Zafer Oztas, Serhad Nalcaci, Filiz Afrashi, Cumali Degirmenci, Jale Mentes
BACKGROUND AND OBJECTIVE: The aim of this study was to assess the prevalence of posterior vitreous detachment (PVD) and vitreoretinal interface in patients with age-related macular degeneration (AMD). PATIENTS AND METHODS: This clinical trial included 206 eyes of 138 patients who presented to the authors' clinic between January 2012 and November 2014. Patients were divided into three groups: 98 eyes of 67 patients with exudative AMD, 55 eyes of 36 patients with nonexudative AMD, and 53 eyes of 35 patients having no vitreoretinal disease...
March 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28294119/low-cost-and-durable-bipolar-plates-for-proton-exchange-membrane-electrolyzers
#8
P Lettenmeier, R Wang, R Abouatallah, B Saruhan, O Freitag, P Gazdzicki, T Morawietz, R Hiesgen, A S Gago, K A Friedrich
Cost reduction and high efficiency are the mayor challenges for sustainable H2 production via proton exchange membrane (PEM) electrolysis. Titanium-based components such as bipolar plates (BPP) have the largest contribution to the capital cost. This work proposes the use of stainless steel BPPs coated with Nb and Ti by magnetron sputtering physical vapor deposition (PVD) and vacuum plasma spraying (VPS), respectively. The physical properties of the coatings are thoroughly characterized by scanning electron, atomic force microscopies (SEM, AFM); and X-ray diffraction, photoelectron spectroscopies (XRD, XPS)...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28283540/extrinsic-repair-of-injured-dendrites-as-a-paradigm-for-regeneration-by-fusion-in-caenorhabditis-elegans
#9
Meital Oren-Suissa, Tamar Gattegno, Veronika Kravtsov, Benjamin Podbilewicz
Injury triggers regeneration of axons and dendrites. Research identified factors required for axonal regeneration outside the CNS, but little is known about regeneration triggered by dendrotomy. Here we study neuronal plasticity triggered by dendrotomy and determine the fate of complex PVD arbors following laser surgery of dendrites. We find that severed primary dendrites grow towards each other and reconnect via branch fusion. Simultaneously, terminal branches lose self-avoidance and grow towards each other, meeting and fusing at the tips via an AFF-1-mediated process...
March 10, 2017: Genetics
https://www.readbyqxmd.com/read/28276475/growth-mechanism-for-low-temperature-pvd-graphene-synthesis-on-copper-using-amorphous-carbon
#10
Udit Narula, Cher Ming Tan, Chao Sung Lai
Growth mechanism for synthesizing PVD based Graphene using Amorphous Carbon, catalyzed by Copper is investigated in this work. Different experiments with respect to Amorphous Carbon film thickness, annealing time and temperature are performed for the investigation. Copper film stress and its effect on hydrogen diffusion through the film grain boundaries are found to be the key factors for the growth mechanism, and supported by our Finite Element Modeling. Low temperature growth of Graphene is achieved and the proposed growth mechanism is found to remain valid at low temperatures...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259411/genetic-and-functional-analysis-of-the-bovine-uterine-microbiota-part-ii-purulent-vaginal-discharge-versus-healthy-cows
#11
M L S Bicalho, S Lima, C H Higgins, V S Machado, F S Lima, R C Bicalho
The aim of this study was to characterize, using metagenomic shotgun DNA sequencing, the intrauterine microbial population and its predicted functional diversity within healthy cows and cows presenting purulent vaginal discharge (PVD). Twenty Holstein dairy cows from a single farm were enrolled in the study at 25 to 35 d postpartum. Purulent vaginal discharge was diagnosed by retrieving and scoring vaginal discharge using the Metricheck device (Simcro, Hamilton, New Zealand). Intrauterine samples for metagenomic analysis were collected by the cytobrush technique from 8 cows diagnosed with PVD and 12 healthy cows...
March 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28258075/a-retrospective-study-of-the-influence-of-the-vitreomacular-interface-on-macular-oedema-secondary-to-retinal-vein-occlusion
#12
Rishi P Singh, Karishma A Habbu, Rumneek Bedi, Fabiana Q Silva, Justis P Ehlers, Andrew P Schachat, Jonathan E Sears, Sunil K Srivastava, Peter K Kaiser, Alex Yuan
AIMS: To compare anti-vascular endothelial growth factor (VEGF) treatment outcomes for macular oedema (ME) secondary to retinal vein occlusion (RVO) based on vitreoretinal interface (VRI) status. METHODS: This retrospective case series includes treatment-naive eyes diagnosed with RVO and treated with anti-VEGF injections. Eyes were stratified based on international VRI classification schema at baseline into three groups-vitreomacular traction (group A), no posterior vitreous detachment (PVD) (group B) and PVD without vitreomacular attachment (group C)...
March 3, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28256249/trends-in-vascular-complications-in-high-risk-patients-following-transcatheter-aortic-valve-replacement-in-the-united-states
#13
Tomo Ando, Emmanuel Akintoye, Tesfaye Telila, Alexandros Briasoulis, Hisato Takagi, Cindy L Grines, Luis Afonso
Vascular complications (VC) following transcatheter aortic valve replacement (TAVR) are associated with worse outcomes. The trend of VC incidence in patients considered high risk is unclear. We sought to assess the trend of VC after TAVR in patients at high risk. We investigated the VC trend in female, diabetes mellitus, and peripheral vascular disease (PVD) patients. Patients who underwent TAVR from 2011 to 2014 in the United States were identified using the International Classification of Diseases-Ninth Revision code 35...
February 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28249002/role-of-the-apoe-polymorphism-in-carotid-and-lower-limb-revascularization-a-prospective-study-from-southern-italy
#14
Sandra Mastroianno, Giuseppe Di Stolfo, Davide Seripa, Michele Antonio Pacilli, Giulia Paroni, Carlo Coli, Maria Urbano, Carmela d'Arienzo, Carolina Gravina, Domenico Rosario Potenza, Giovanni De Luca, Antonio Greco, Aldo Russo
BACKGROUND: Atherosclerosis is a complex multifactorial disease and the apolipoprotein E (APOE) polymorphism has been associated to vascular complications of atherosclerosis. OBJECTIVES: To investigate the relationship between the APOE genotypes and advanced peripheral vascular disease. MATERIALS AND METHODS: 258 consecutive patients (201 males and 57 females, mean age 70.83 ± 7.89 years) with severe PVD were enrolled in a 42-months longitudinal study (mean 31...
2017: PloS One
https://www.readbyqxmd.com/read/28236373/insidious-incrementalism-the-silent-failure-of-the-microcirculation-with-increasing-peripheral-vascular-disease-risk
#15
REVIEW
Kent Lemaster, Dwayne Jackson, Daniel Goldman, Jefferson C Frisbee
This review summarizes material presented in "Adaptive Outcomes of Microvascular Networks to Obesity and Type II Diabetes/Insulin Resistance" on July 30, 2016, at the Joint Meeting of the American Physiological Society and the Physiological Society, in Dublin, Ireland. We discuss the poor predictive power of traditional markers of vascular dysfunction for functional outcomes of muscle fatigue-resistance and active hyperemia within the setting of elevated peripheral vascular disease risk. Using the obese Zucker rat model of the metabolic syndrome, we describe how blood flow distribution at arteriolar bifurcations (γ) is altered with PVD risk reflecting increased spatial heterogeneity of distribution within networks...
February 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28218856/influence-of-hydrogen-bonding-on-the-kinetic-stability-of-vapor-deposited-glasses-of-triazine-derivatives
#16
Audrey Laventure, Ankit Gujral, Olivier Lebel, Christian Pellerin, M D Ediger
It has recently been established that physical vapor deposition (PVD) can produce organic glasses with enhanced kinetic stability, high density, and anisotropic packing, with the substrate temperature during deposition (Tsubstrate) as the key control parameter. The influence of hydrogen bonding on the formation of PVD glasses has not been fully explored. Herein, we use a high-throughput preparation method to vapor-deposit three triazine derivatives over a wide range of Tsubstrate, from 0.69 to 1.08Tg, where Tg is the glass transition temperature...
March 6, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28207607/pars-plana-vitrectomy-and-lensectomy-for-ectopia-lentis-with-and-without-the-induction-of-a-posterior-vitreous-detachment
#17
Mandeep S Singh, Edward J Casswell, Stavroula Boukouvala, Petros Petrou, David G Charteris
PURPOSE: Posterior hyaloid removal during pars plana vitrectomy and lensectomy for ectopia lentis is commonly performed, but may increase the risk of intraoperative retinal breaks and postoperative retinal detachment. This study evaluated outcomes after pars plana vitrectomy and lensectomy with or without posterior hyaloid removal. METHODS: This retrospective observational cohort study included ectopia lentis cases that underwent pars plana vitrectomy and lensectomy (2005-2014), with or without intraoperative induction of a posterior vitreous detachment (PVD)...
February 15, 2017: Retina
https://www.readbyqxmd.com/read/28194186/safety-and-effectiveness-of-bone-marrow-cell-concentrate-in-the-treatment-of-chronic-critical-limb-ischemia-utilizing-a-rapid-point-of-care-system
#18
Venkatesh Ponemone, Saniya Gupta, Dalip Sethi, Manish Suthar, Monika Sharma, Richard J Powell, Kenneth Lee Harris, Nungshi Jungla, Priyadarshini Arambam, Upendra Kaul, Ashok Seth, Suhail Bukhari
Critical limb ischemia (CLI) is the end stage of lower extremity peripheral vascular disease (PVD) in which severe obstruction of blood flow results in ischemic rest pain, ulcers and/or gangrene, and a significant risk of limb loss. This open-label, single-arm feasibility study evaluated the safety and therapeutic effectiveness of autologous bone marrow cell (aBMC) concentrate in revascularization of CLI patients utilizing a rapid point-of-care device. Seventeen (17) no-option CLI patients with ischemic rest pain were enrolled in the study...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28178836/nematic-like-stable-glasses-without-equilibrium-liquid-crystal-phases
#19
Jaritza Gómez, Ankit Gujral, Chengbin Huang, Camille Bishop, Lian Yu, M D Ediger
We report the thermal and structural properties of glasses of posaconazole, a rod-like molecule, prepared using physical vapor deposition (PVD). PVD glasses of posaconazole can show substantial molecular orientation depending upon the choice of substrate temperature, Tsubstrate, during deposition. Ellipsometry and IR measurements indicate that glasses prepared at Tsubstrate very near the glass transition temperature (Tg) are highly ordered. For these posaconazole glasses, the orientation order parameter is similar to that observed in macroscopically aligned nematic liquid crystals, indicating that the molecules are mostly parallel to one another and perpendicular to the interface...
February 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28178074/a-common-pro-nociceptive-pain-modulation-profile-typifying-subgroups-of-chronic-pelvic-pain-syndromes-is-interrelated-with-enhanced-clinical-pain
#20
Grinberg Keren, Granot Michal, Lowenstein Lior, Abramov Liora, Weissman-Fogel Irit
Provoked vestibulodynia (PVD) and painful bladder syndrome (PBS), subgroups of chronic pelvic pain syndromes (CPPS), are considered to share common bio-physiological peripheral mechanisms. In addition, indications of a pro-nociceptive pain profile co-existing with psychological vulnerability suggests common dysfunctional pain processing and pain modulation in these two subgroups of CPPS. We therefore aimed at comparing the pain profile and psychological traits of PVD and PBS patients to see whether the pain profile contributes to inter-subject variability of clinical pain symptoms...
February 7, 2017: Pain
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