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Risha L Moskalewicz, Leidy L Isenalumhe, Cindy Luu, Choo Phei Wee, Alan L Nager
OBJECTIVE: To examine clinical characteristics associated with bacteremia in febrile nonneutropenic pediatric oncology patients with central venous catheters (CVCs) in the emergency department (ED). BACKGROUND: Fever is the primary reason pediatric oncology patients present to the ED. The literature states that 0.9% to 39% of febrile nonneutropenic oncology patients are bacteremic, yet few studies have investigated infectious risk factors in this population. METHODS: This was a retrospective cohort study in a pediatric ED, reviewing medical records from 2002 to 2014...
September 17, 2016: American Journal of Emergency Medicine
Naoto Fujii, Maya Sarah Singh, Lyra Halili, Jeffrey C Louie, Glen P Kenny
During exercise, cutaneous vasodilation and sweating responses occur, whereas these responses rapidly decrease during postexercise recovery. We hypothesized that the activation of endothelin A (ETA) receptors, but not endothelin B (ETB) receptors, attenuate cutaneous vasodilation during high-intensity exercise and contribute to the subsequent postexercise suppression of cutaneous vasodilation. We also hypothesized that both receptors increase sweating during and following high-intensity exercise. Eleven males (24 ± 4 years) performed an intermittent cycling protocol consisting of two 30-min bouts of moderate- (40% VO2peak) and high- (75% VO2peak) intensity exercise in the heat (35°C), each separated by a 20- and 40-min recovery period, respectively...
October 7, 2016: Journal of Applied Physiology
M J Blans, H Endeman, F H Bosch
BACKGROUND: After insertion of a central venous catheter (CVC) a conventional chest X-ray (CXR) is usually taken to check for complications and correct position. Ultrasound might be equally effective as CXR and is less time consuming. We studied the use of ultrasound versus CXR after insertion of a CVC in general ward patients. METHODS: General ward patients in need of a CVC were included. CVCs were inserted under direct ultrasound guidance. After insertion, ultrasound was performed and compared with CXR to check for complications and position...
October 2016: Netherlands Journal of Medicine
Max B van Gent, Wendeline J van der Made, Perla J Marang-van de Mheen, Koen E van der Bogt
OBJECTIVE: To analyze the rate of infections and complications after surgeon-performed, largely ultrasound-guided, central venous catheter (CVC) placement in a pediatric population and to identify patients at high risk of complications. METHODS: All children aged between 4 months and 19 years with a percutaneous CVC inserted between January 1, 2000, and July 31, 2013, were included. Patient records were reviewed retrospectively for the occurrence of infection and other complications until CVC removal or the last outpatient clinic visit and compared between patient groups and with the recent literature...
October 14, 2016: Surgical Infections
Yan Li, Ruiping Wang, Zhen Cui, Shiguang Shan, Xilin Chen
We address the problem of face video retrieval in TV-series which searches video clips based on the presence of specific character, given one face track of his/her. This is tremendously challenging because on one hand, faces in TV-series are captured in largely uncontrolled conditions with complex appearance variations, and on the other hand retrieval task typically needs efficient representation with low time and space complexity. To handle this problem, we propose a compact and discriminative representation for the huge body of video data, named Compact Video Code (CVC)...
October 10, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
Silvia Calviño Günther, Carole Schwebel, Rebecca Hamidfar-Roy, Agnès Bonadona, Maxime Lugosi, Claire Ara-Somohano, Clémence Minet, Leïla Potton, Jean-Charles Cartier, Aurelien Vésin, Magalie Chautemps, Lenka Styfalova, Stephane Ruckly, Jean-François Timsit
PURPOSE: To describe all post-insertion complications involving most used intravascular access, and to determine whether the use of a new-generation transparent dressing (3M™ IV Advanced) might reduce their number and impact on ICU patient outcomes. METHODS: Patients older than 18, with an expected length of stay ≥48 h and requiring at least one central venous catheter (CVC), arterial catheter (AC), haemodialysis catheter (HDC), pulmonary arterial catheters (PAC) or peripheral venous catheter (PVC) were randomized into two groups: a new-generation transparent dressing, or the hospital's classical transparent dressing, and were followed daily for any infectious and non-infectious complications...
October 12, 2016: Intensive Care Medicine
Naoto Fujii, Sheila M Dervis, Ronald J Sigal, Glen P Kenny
Both cyclooxygenase (COX) and nitric oxide synthase (NOS) contribute to sweating, whereas NOS alone contributes to cutaneous vasodilation during exercise in the heat. Here, we evaluated if type 1 diabetes mellitus (T1DM) modulates these responses. Adults with (n=11, 25±5 years) and without (n=12, 24±4 years) T1DM performed two bouts of 30-min cycling at a fixed rate of heat production of 400W in the heat (35°C); each followed by a 20- and 40-min recovery period respectively. Sweat rate and cutaneous vascular conductance (CVC) were measured at four intradermal microdialysis sites treated with either 1) lactated Ringer (vehicle control site), 2) 10mM ketorolac (non-selective COX inhibitor), 3) 10mM N(G)-nitro-L-arginine methyl ester (non-selective NOS inhibitor), or 4) a combination of both inhibitors...
October 12, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
João Lúcio Azevedo, Welington Luiz Araújo, Paulo Teixeira Lacava
The bacterium Xylella fastidiosa is the causal agent of citrus variegated chlorosis (CVC) and has been associated with important losses in commercial orchards of all sweet orange [Citrus sinensis (L.)] cultivars. The development of this disease depends on the environmental conditions, including the endophytic microbial community associated with the host plant. Previous studies have shown that X. fastidiosa interacts with the endophytic community in xylem vessels as well as in the insect vector, resulting in a lower bacterial population and reduced CVC symptoms...
October 10, 2016: Genetics and Molecular Biology
Massimo Lodi, Reza Far Ebrahimi, Piera Pezzotti, Luciano Carbonari
The use of the tunneled central venous catheter (CVC) is steadily increasing worldwide as a means of vascular access for hemodialysis. The increased use of these devices, which often outlive the patients, and the extended time they are used are associated with more frequent complications. Among these, one of the emerging complications is that of the "embedded" or stuck catheter. This term refers to when the catheter cannot be removed after detaching the retention cuff. In medical literature, experiences with the removal of stuck catheters are described with the use of several different methods...
September 27, 2016: Journal of Vascular Access
Tanmoy Ghatak, Ratender Kumar Singh, Arvind Kumar Baronia
INTRODUCTION: Introducer needle tip is not clearly visible during the real-time ultrasound (US)-guided central vein cannulation (CVC). Blind tip leads to mechanical complications. This study was designed to evaluate whether real-time US-guided CVC with a marked introducer needle is superior to the existing unmarked needle. METHODOLOGY: Sixty-two critically ill patients aged 18-60 years of either sex were included in the study. The patients were randomized into two groups based on whether a marked or unmarked introducer needle was used...
October 2016: Annals of Cardiac Anaesthesia
Michał Ławiński, Karol Forysiński, Agnieszka Bzikowska, Justyna Z Kostro, Aleksandra Gradowska, Marek Pertkiewicz
INTRODUCTION: The ESPEN guidelines on long-term (> 3 months) parenteral nutrition recommend the use of tunnelled central venous catheters (CVCs) to minimise the risk of insertion site infection. A developed symptomatic infection of the soft tissue tunnel surrounding a CVC may rapidly become directly life threatening if the infection progresses along the catheter tunnel towards its end inserted into the venous system. This requires immediate management to eliminate infection and limit its effects...
2016: Przegla̜d Gastroenterologiczny
Amrita Singh, Navneet Singh, Digambar Behera, Siddharth Sharma
XRCC1 is a scaffold protein that provides for interaction of DNA polymerase, DNA ligase and damaged DNA. Genotyping was done for the five non-synonymous and synonymous variants of XRCC1 i.e. XRCC1, Arg(194)Trp, Pro(206)Pro, Arg(280)His, Arg(399)Gln, Gln(632)Gln. Logistic regression analysis was used to analyze the association of XRCC1 with lung cancer, followed by data mining analysis which included both Multi-dimensionality reduction (MDR) and Classification and Regression tree (CART) analysis so as to find possible interaction between SNPs on XRCC1 gene...
September 28, 2016: DNA Repair
Elizabeth S Heller Murray, Joseph O Mendoza, Simone V Gill, Joseph S Perkell, Cara E Stepp
Purpose: The purpose of this study was to determine the effects of biofeedback on control of nasalization in individuals with typical speech. Method: Forty-eight individuals with typical speech attempted to increase and decrease vowel nasalization. During training, stimuli consisted of consonant-vowel-consonant (CVC) tokens with the center vowels /a/ or /i/ in either a nasal or nonnasal phonemic context (e.g., /mim/ vs. /bib/), depending on the participant's training group...
October 4, 2016: Journal of Speech, Language, and Hearing Research: JSLHR
Sara C Keller, Deborah Williams, Mitra Gavgani, David Hirsch, John Adamovich, Dawn Hohl, Amanda Krosche, Sara Cosgrove, Trish M Perl
BACKGROUND Patients are frequently discharged with central venous catheters (CVCs) for home infusion therapy. OBJECTIVE To study a prospective cohort of patients receiving home infusion therapy to identify environmental and other risk factors for complications. DESIGN Prospective cohort study between March and December 2015. SETTING Home infusion therapy after discharge from academic medical centers. PARTICIPANTS Of 368 eligible patients discharged from 2 academic hospitals to home with peripherally inserted central catheters and tunneled CVCs, 222 consented...
October 4, 2016: Infection Control and Hospital Epidemiology
Arunangshu Chakraborty, Sanjit Agrawal, Taniya Datta, Suparna Mitra, Rakhi Khemka
Chemotherapy in children suffering from cancer usually requires placement of an indwelling central venous catheter (CVC). A child may need to undergo repeated procedures because of infection and occlusion of previous access devices. We present a case of CVC insertion in a child suffering from acute lymphoblastic leukemia where an innovative technique was employed.
October 2016: Journal of Indian Association of Pediatric Surgeons
Adam D Jakes, Poonam Jani, Victoria Allgar, Archie Lamplugh, Ahmed Zeidan, Sunil Bhandari
BACKGROUND: Dialysis in elderly patients (>80-years-old) carries a poor prognosis, but little is known about the most effective vascular access method in this age group. An arteriovenous fistula (AVF) is both time-consuming and initially expensive, requiring surgical insertion. A central venous catheter (CVC) is initially a cheaper alternative, but carries a higher risk of infection. We examined whether vascular access affected 1-year and 2-year mortality in elderly patients commencing haemodialysis...
2016: PloS One
Melanie Wittwer, Yann York Chow, Gus Dekker, Vicki Clifton, Margaret Arstall
INTRODUCTION: Preeclampsia is a multisystem disorder characterised by endothelial and microvascular dysfunction that develops in ∼10% of pregnancies. This study will characterise skin microvascular reactivity using laser Doppler flowmetry in women with preeclampsia compared to matched controls during pregnancy and early postpartum. METHODS: Women were recruited and studied on the diagnosis of preeclampsia and followed up for 6-months during postpartum period. Controls were matched for age, gestation and comorbidities...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
Jay N Nathwani, Rebekah M Fiers, Rebecca D Ray, Anna K Witt, Katherine E Law, ShannonM DiMarco, Carla M Pugh
OBJECTIVE: The purpose of this study is to coevaluate resident technical errors and decision-making capabilities during placement of a subclavian central venous catheter (CVC). We hypothesize that there would be significant correlations between scenario-based decision-making skills and technical proficiency in central line insertion. We also predict residents would face problems in anticipating common difficulties and generating solutions associated with line placement. DESIGN: Participants were asked to insert a subclavian central line on a simulator...
September 23, 2016: Journal of Surgical Education
Jeffrey Forris Beecham Chick, Shilpa N Reddy, Ruchika D Bhatt, Benjamin J Shin, James N Kirkpatrick, Scott O Trerotola
PURPOSE: To explore significance, management, and outcomes of central venous catheter (CVC) tip-associated thrombi incidentally detected on echocardiography. MATERIALS AND METHODS: Echocardiogram data from all patients with CVCs from October 2009 to June 2011 were reviewed (N = 170). Patients with CVC tip-associated thrombi were selected (n = 49). Echocardiograms were reviewed for ejection fraction, presence of patent foramen ovale (PFO), presence of other intracardiac shunts, and mean thrombus size...
September 19, 2016: Journal of Vascular and Interventional Radiology: JVIR
Hui C Choo, Kazunori Nosaka, Jeremiah J Peiffer, Mohammed Ihsan, Chow C Yeo, Chris R Abbiss
This study examined the test-retest reliability of near-infrared spectroscopy (NIRS), laser Doppler flowmetry (LDF) and Doppler ultrasound to assess exercise-induced haemodynamics. Nine men completed two identical trials consisting of 25-min submaximal cycling at first ventilatory threshold followed by repeated 30-s bouts of high-intensity (90% of peak power) cycling in 32.8 ± 0.4°C and 32 ± 5% relative humidity (RH). NIRS (tissue oxygenation index [TOI] and total haemoglobin [tHb]) and LDF (perfusion units [PU]) signals were monitored continuously during exercise, and leg blood flow was assessed by Doppler ultrasound at baseline and after exercise...
September 21, 2016: Journal of Sports Sciences
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