keyword
MENU ▼
Read by QxMD icon Read
search

CVC

keyword
https://www.readbyqxmd.com/read/28625890/acute-effects-of-coffee-on-skin-blood-flow-and-microvascular-function
#1
Erik Tesselaar, Dzeneta Nezirevic Dernroth, Simon Farnebo
OBJECTIVE: Studies on the acute effects of coffee on the microcirculation have shown contradicting results. This study aimed to investigate if intake of caffeine-containing coffee changes blood flow and microvascular reactivity in the skin. METHODS: We measured acute changes in cutaneous vascular conductance (CVC) in the forearm and the tip of the finger, the microvascular response to transdermal iontophoresis of acetylcholine (ACh) and sodium nitroprusside (SNP) and post-occlusive reactive hyperemia (PORH) in the skin, after intake of caffeinated or decaffeinated coffee...
June 15, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28614258/the-malposition-of-a-central-venous-catheter-through-a-sheath-introducer-via-the-left-internal-jugular-vein-a-case-report
#2
Jung A Lim, Chan Hee Jee, Kyung-Hwa Kwak
RATIONALE: The misplacement of central venous catheter (CVC) can occur more often at the left jugular vein than the right side due to anatomic differences. And many of the previously reported cases are about catheter misplacement resulting from vessel penetration associated with guidewire. This case differs that the catheter itself through the sheath introducer can cause venous injury that may lead to the malposition of CVC particularly through an approach to the left internal jugular vein...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28599902/cost-effectiveness-analysis-of-vascular-access-referral-policies-in-ckd
#3
Steven M Shechter, Talon Chandler, M Reza Skandari, Nadia Zalunardo
BACKGROUND: The optimal timing of vascular access referral for patients with chronic kidney disease who may need hemodialysis (HD) is a pressing question in nephrology. Current referral policies have not been rigorously compared with respect to costs and benefits and do not consider patient-specific factors such as age. STUDY DESIGN: Monte Carlo simulation model. SETTING & POPULATION: Patients with chronic kidney disease, referred to a multidisciplinary kidney clinic in a universal health care system...
June 7, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28587831/clinical-characteristics-and-risk-factors-for-mortality-in-adult-patients-with-persistent-candidemia
#4
Seung Ji Kang, Seong Eun Kim, Uh Jin Kim, Hee-Chang Jang, Kyung-Hwa Park, Jong Hee Shin, Sook In Jung
BACKGROUND: We investigated the clinical characteristics and risk factors for mortality in adults with persistent candidemia. METHODS: All patients ≥18 years old with candidemia in two Korean tertiary hospitals from 2007 to 2014 were investigated. Persistent candidemia was defined as isolation of the same Candida species ≥5 days after initiation of antifungal therapy. Non-persistent candidemia was defined as candidemia persisting for ≤3 days after initiation of antifungal therapy...
June 3, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28584925/peripherally-inserted-central-catheters-are-associated-with-lower-risk-of-bloodstream-infection-compared-with-central-venous-catheters-in-paediatric-intensive-care-patients-a-propensity-adjusted-analysis
#5
Ricardo Silveira Yamaguchi, Danilo Teixeira Noritomi, Natalia Viu Degaspare, Gabriela Ortega Cisternas Muñoz, Ana Paula Matos Porto, Silvia Figueiredo Costa, Otavio T Ranzani
PURPOSE: Central line-associated bloodstream infection (CLABSI) is an important cause of complications in paediatric intensive care units (PICUs). Peripherally inserted central catheters (PICCs) could be an alternative to central venous catheters (CVCs) and the effect of PICCs compared with CVCs on CLABSI prevention is unknown in PICUs. Therefore, we aimed to evaluate whether PICCs were associated with a protective effect for CLABSI when compared to CVCs in critically ill children. METHODS: We have carried out a retrospective multicentre study in four PICUs in São Paulo, Brazil...
June 5, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28574019/k-time-maximum-amplitude-of-thromboelastogram-predict-post-central-venous-cannulation-bleeding-in-patients-with-cirrhosis-a-pilot-study
#6
Chandra K Pandey, Vandana Saluja, Kumar Gaurav, Manish Tandon, Vijay K Pandey, Ajeet S Bhadoria
BACKGROUND & OBJECTIVES: Coagulation and haemostasis are dynamic processes. The haemostatic changes in liver disease affect all aspects of coagulation. The prothrombin time (PT)/ international normalized ratio (INR) was developed to monitor oral anticoagulant therapy and the activated partial thromboplastin time to investigate inheritable single factor deficiencies. Viscoelastic tests such as thromboelastogram (TEG) give information about dynamics of clot formation (coagulation factor and anticoagulant activity), clot strength (platelets and fibrinogen) and clot stability (finbrinolysis and factor XIII)...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28564713/direct-peroral-cholangioscopy-for-diagnosis-of-bile-duct-lesions-using-an-i-scan-ultraslim-endoscope-a-pilot-study
#7
Yun Nah Lee, Jong Ho Moon, Hyun Jong Choi, Tae Hoon Lee, Moon Han Choi, Sang-Woo Cha, Young Deok Cho, Sang-Heum Park
Background and study aims I-SCAN is a computed virtual chromoendoscopy (CVC) system designed to enhance surface and vascular patterns. In this study, we evaluated the usefulness of direct peroral cholangioscopy (POC) using I-SCAN compared with a conventional white-light image (WLI) to diagnose bile duct lesions. Patients and methods Patients with mucosal lesions in the bile duct detected during direct POC were enrolled prospectively. The quality of endoscopic visualization and the visual diagnosis were assessed using I-SCAN and WLI modes, respectively, during direct POC...
May 31, 2017: Endoscopy
https://www.readbyqxmd.com/read/28544033/impaired-neurovascular-reactivity-in-the-microvasculature-of-pregnant-women-with-preeclampsia
#8
Karine Ferreira Agra, Isabelle Eunice Albuquerque Pontes, José Roberto da Silva, José Natal Figueiroa, Geraldine F Clough, João Guilherme Bezerra Alves
Preeclampsia (PE) is associated with maternal vascular dysfunction, leading to serious cardiovascular risk both during and following pregnancy. OBJECTIVE: To assess microvascular reactivity in pregnant women with PE. METHODS: A cross-sectional study was performed in 36 pregnant women with PE and 36 normotensive pregnant women (C) in the third trimester. Skin microvascular blood flow was measured using laser Doppler flowmetry at rest (RF), during the maximum hyperaemic response to brief arterial occlusion (MF) and during the sympathetically-mediated constrictor response to deep inspiratory breath hold (IBH)...
May 19, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28537810/incidence-and-characteristics-of-venous-thrombotic-events-in-pediatric-cancer-patients-a-20-year-experience-in-the-maritimes-canada
#9
Zeina Asyyed, Tamara MacDonald, Carol Digout, Ketan Kulkarni
OBJECTIVE: Venous thrombotic events (VTE) are a well-recognized complication in pediatric cancer patients. Population-based data on the incidence and characteristics of VTE in all pediatric cancer patients are limited. This information is crucial to identify patients at high risk and design targeted interventions accordingly. The present study was designed to determine the incidence and characteristics of VTE in the pediatric oncology population. PARTICIPANTS: We conducted a retrospective, population-based, cohort study of patients treated in the Maritimes, Canada between 1995 and 2015...
May 24, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/28534703/chlorhexidine-and-silver-sulfadiazine-coating-on-central-venous-catheters-is-not-sufficient-for-protection-against-catheter-related-infection-simulation-based-laboratory-research-with-clinical-validation
#10
Yoon Ji Choi, Jae Kwan Lim, Jeong Jun Park, Hyub Huh, Dong-Joo Kim, Chang-Hoon Gong, Seung Zhoo Yoon
Objective The efficacy of chlorhexidine- and silver sulfadiazine-coated central venous catheters (CSS-CVC) against catheter-related infection remains controversial. We hypothesized that the loss of silver nanoparticles may reduce the antibacterial efficacy of CSS-CVCs and that this loss could be due to the frictional force between the surface of the CVC and the bloodstream. The objective of this study was to investigate whether the antimicrobial effect of CSS-CVCs decreases with increasing exposure time in a bloodstream model and quantitatively assay the antimicrobial effect of CSS-CVCs compared with polyurethane and antiseptic-impregnated CVCs...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28515611/malposition-of-the-central-venous-catheter-a-diagnostic-dilemma
#11
Sameer N Desai, Santosh K Dasar, V Mithali
A 50-year-old male was admitted to Intensive Care Unit with head and chest injury needed multiple central venous catheter (CVC) for the long-term intravenous access. Right internal jugular vein was cannulated uneventfully, and the tip of CVC was confirmed in the chest radiograph along the right border of the mediastinum. After few days, left subclavian vein was cannulated and the procedure was uneventful. However, the postprocedure Chest X-ray showed the CVC along the left border of mediastinum rather than the right border...
April 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28514783/dialysis-access-as-an-area-of-improvement-in-elderly-incident-hemodialysis-patients-results-from-a-cohort-study-from-the-international-monitoring-dialysis-outcomes-initiative
#12
Jochen G Raimann, Claudia Barth, Len A Usvyat, Priscila Preciado, Bernard Canaud, Michael Etter, Xiaoqi Xu, Adrian Guinsburg, Christina Marelli, Neill Duncan, Albert Power, Frank M van der Sande, Jeroen P Kooman, Stephan Thijssen, Yuedong Wang, Peter Kotanko
BACKGROUND: Commencing hemodialysis (HD) using a catheter is associated with a higher risk of adverse outcomes, and early conversion from central-venous catheter (CVC) to arteriovenous fistula/graft (non-CVC) improves outcomes. We investigated CVC prevalence and conversion, and their effects on outcomes during the first year of HD in a multinational cohort of elderly patients. METHODS: Patients ≥70 years from the MONDO Initiative who commenced HD between 2000 and 2010 in Asia-Pacific, Europe, North-, and South-America and survived at least 6 months were included in this investigation...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28510986/blood-pressure-normalization-via-pharmacotherapy-improves-cutaneous-microvascular-function-through-no-dependent-and-independent-mechanisms
#13
Daniel H Craighead, Caroline J Smith, Lacy M Alexander
Hypertension is associated with endothelial dysfunction and vascular remodeling. OBJECTIVE: To assess effects of antihypertensive pharmacotherapy on eNOS and iNOS-dependent mechanisms and maximal vasodilator capacity in the cutaneous microvasculature METHODS: Intradermal microdialysis fibers were placed in 15 normotensive (SBP 111±2 mmHg), 12 unmedicated hypertensive (SBP 142±2 mmHg), and 12 medicated hypertensive (SBP 120±2 mmHg) subjects. Treatments were control, iNOS-inhibited (1400w), and NOS-inhibited (L-NAME)...
May 16, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28505167/relationship-of-hyperlipidemia-to-comorbidities-and-lung-function-in-copd-results-of-the-cosyconet-cohort
#14
Kathrin Kahnert, Tanja Lucke, Rudolf M Huber, Jürgen Behr, Frank Biertz, Anja Vogt, Henrik Watz, Peter Alter, Sebastian Fähndrich, Robert Bals, Rolf Holle, Stefan Karrasch, Sandra Söhler, Margarethe Wacker, Joachim H Ficker, Klaus G Parhofer, Claus Vogelmeier, Rudolf A Jörres
Although hyperlipidemia is common in COPD, its relationship to comorbidities, risk factors and lung function in COPD has not been studied in detail. Using the baseline data of the COSYCONET cohort we addressed this question. Data from 1746 COPD patients (GOLD stage 1-4; mean age 64.6 y, mean FEV1%pred 57%) were evaluated, focusing on the comorbidities hyperlipidemia, diabetes and cardiovascular complex (CVC; including arterial hypertension, cardiac failure, ischemic heart disease). Risk factors comprised age, gender, BMI, and packyears of smoking...
2017: PloS One
https://www.readbyqxmd.com/read/28495535/endoluminal-dilation-technique-to-remove-stuck-port-a-cath-a-case-report
#15
Paolo Cerini, Giuseppe Guzzardi, Andrea Galbiati, Carmelo Stanca, Bruno Del Sette, Alessandro Carriero
Port-a-cath is a type of central venous catheter (CVC) designed to allow repeated access to the venous system for parenteral delivery of medications, fluids, and nutritional solutions and for sampling venous blood. After years of use or in case of damage, CVC must be removed and eventually replaced: the recovery of the device should normally be easy, with a small surgical incision of the skin and tissues surrounding the device and pulling the catheter. Sometimes scar tissue can develop around the device, making it resistant to removal even after application of forceful traction...
May 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28489757/ultrasound-guided-catheterization-of-the-left-subclavian-vein-without-recognition-of-persistent-left-superior-vena-cava-a-case-report
#16
Sun Young Park, Jae Hwa Yoo, Mun Gyu Kim, Sang Ho Kim, Byoung-Won Park, Hong Chul Oh, Hojoon Kim
RATIONALE: A persistent left superior vena cava (PLSVC) is rare, but the most common thoracic venous anomaly. We report a case of PLSVC unrecognized during left subclavian vein catheterization using real-time ultrasound-guided supraclavicular approach. PATIENT CONCERNS: A 79-year-old man with history of hypertension presented with traumatic subdural hemorrhage, subarachnoid hemorrhage, and epidural hemorrhage. Before the operation, a central venous catheter (CVC) was placed into the left subclavian vein...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28489320/role-of-cyclooxygenase-in-the-vascular-responses-to-extremity-cooling-in-caucasian-and-african-males
#17
Matthew J Maley, James R House, Michael J Tipton, Clare M Eglin
African descent (AFD) individuals are more susceptible to non-freezing cold injury (NFCI) and experience an exaggerated cutaneous vasoconstrictor response to hand cooling compared with Caucasians (CAU). Using a placebo-controlled, crossover design, this study tested the hypothesis that cyclooxygenase (COX) may, in part, be responsible for the exaggerated vasoconstrictor response to local cooling in AFD. Twelve AFD and twelve CAU young healthy males completed foot cooling and hand cooling (separately, in 8°C water for 30 minutes) with spontaneous rewarming in 30°C air following placebo or aspirin (COX inhibition) treatment...
May 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28485045/performance-and-safety-of-femoral-central-venous-catheters-in-pediatric-autologous-peripheral-blood-stem-cell-collection
#18
Laura Cooling, Sandra Hoffmann, Dawn Webb, Chisa Yamada, Robertson Davenport, Sung Won Choi
INTRODUCTION: Autologous peripheral blood hematopoietic progenitor cell collection (A-HPCC) in children typically requires placement of a central venous catheter (CVC) for venous access. There is scant published data regarding the performance and safety of femoral CVCs in pediatric A-HPCC. METHODS: Seven-year, retrospective study of A-HPCC in pediatric patients collected between 2009 and January 2017. Inclusion criteria were an age ≤ 21 years and A-HPCC using a femoral CVC for venous access...
May 9, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28481301/convolutional-neural-network-based-human-detection-in-nighttime-images-using-visible-light-camera-sensors
#19
Jong Hyun Kim, Hyung Gil Hong, Kang Ryoung Park
Because intelligent surveillance systems have recently undergone rapid growth, research on accurately detecting humans in videos captured at a long distance is growing in importance. The existing research using visible light cameras has mainly focused on methods of human detection for daytime hours when there is outside light, but human detection during nighttime hours when there is no outside light is difficult. Thus, methods that employ additional near-infrared (NIR) illuminators and NIR cameras or thermal cameras have been used...
May 8, 2017: Sensors
https://www.readbyqxmd.com/read/28477375/oral-l-tyrosine-supplementation-augments-the-vasoconstriction-response-to-whole-body-cooling-in-older-adults
#20
James A Lang, Kevin A Smaller
L-tyrosine is the primary substrate for noradrenaline biosynthesis within sympathetic axon terminals. Under stressful conditions requiring increased catecholamine production, axonal L-tyrosine concentration may limit the full expression of the sympathetic effector response and this may be particularly evident in older adults. We hypothesize that oral L-tyrosine supplementation will increase the sympathetic response to whole-body cooling and muscle metaboreflex activation. In a randomized, double-blind design, eleven young (Y = 24 ± 1 years) and eleven older (O = 68 ± 4 years) participants ingested either 150 mg kg(-1) of L-tyrosine or placebo prior to commencing 30 minutes of whole-body cooling to induce a gradual decline in skin temperature from 34 to 30...
May 5, 2017: Experimental Physiology
keyword
keyword
24099
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"