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Vascular catheters

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https://www.readbyqxmd.com/read/28445893/early-mortality-associated-with-inpatient-versus-outpatient-hemodialysis-initiation-in-a-large-cohort-of-us-veterans-with-incident-end-stage-renal-disease
#1
Faisal M Arif, Keiichi Sumida, Miklos Z Molnar, Praveen K Potukuchi, Jun Ling Lu, Fatima Hassan, Fridtjof Thomas, Omer A Siddiqui, Geeta G Gyamlani, Kamyar Kalantar-Zadeh, Csaba P Kovesdy
BACKGROUND: Mortality in the immediate post-hemodialysis transition period is extremely high. Many end-stage renal disease (ESRD) patients in the US start dialysis in an inpatient setting, but the characteristics of patients starting dialysis as inpatients, and the association of inpatient hemodialysis transition with mortality remain unclear. METHODS: We examined 48,261 US veterans who transitioned to hemodialysis between October 2007 and September 2011. Associations of inpatient hemodialysis starting with all-cause mortality were examined in Cox proportional hazard models, with adjustments for demographics, comorbidities, vascular access type, pre-dialysis nephrology care and medication use, and last pre-ESRD estimated glomerular filtration rate and hemoglobin...
April 27, 2017: Nephron
https://www.readbyqxmd.com/read/28443287/brachial-approach-as-an-alternative-technique-of-fibrin-sheath-removal-for-implanted-venous-access-devices
#2
Charalampos Sotiriadis, Steven David Hajdu, Francesco Doenz, Salah D Qanadli
Implanted venous access device (IVAD) late dysfunction is commonly caused by fibrin sheath formation. The standard method of endovascular fibrin sheath removal is performed via the femoral vein. However, it is not always technically feasible and sometimes contraindicated. Moreover, approximately 4-6 h of bed rest is necessary after the procedure. In this article, we describe an alternative method of fibrin sheath removal using the brachial vein approach in a young woman receiving chemotherapy for breast cancer...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28443283/vascular-access-site-for-renal-replacement-therapy-in-acute-kidney-injury-a-post-hoc-analysis-of-the-atn-study
#3
Yue-Harn Ng, Kavitha Ganta, Herbert Davis, V Shane Pankratz, Mark Unruh
BACKGROUND: Acute kidney injury requiring renal replacement therapy (RRT) in the intensive care unit portends a poor prognosis. The decisions regarding dialysis catheter placement is based mainly on physician discretion with little evidence to support the choice of dialysis catheter location. METHODS: The Veterans Affairs/National Institutes of Health Acute Renal Failure Trial Network Study was a multicenter, prospective, randomized trial of intensive vs. less intensive RRT in critically ill patients with AKI...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28441847/-feasibility-of-device-closure-for-multiple-atrial-septal-defects-using-3d-printing-and-ultrasound-guided-intervention-technique
#4
X Qiu, B Lü, N Xu, C W Yan, W B Ouyang, Y Liu, F W Zhang, Z Q Yue, K J Pang, X B Pan
Objective: To investigate the feasibility of trans-catheter closure of multiple atrial septal defects (ASD) monitored by trans-thoracic echocardiography (TTE) under the guidance of 3D printing heart model. Methods: Between April and August 2016, a total of 21 patients (8 male and 13 female) with multiple ASD in Fuwai Hospital of Chinese Academy of Medical Sciences underwent CT scan and 3-dimensional echocardiography for heart disease model produced by 3D printing technique. The best occlusion program was determined through the simulation test on the model...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28438216/improved-pressure-contour-analysis-for-estimating-cardiac-stroke-volume-using-pulse-wave-velocity-measurement
#5
Shun Kamoi, Christopher Pretty, Joel Balmer, Shaun Davidson, Antoine Pironet, Thomas Desaive, Geoffrey M Shaw, J Geoffrey Chase
BACKGROUND: Pressure contour analysis is commonly used to estimate cardiac performance for patients suffering from cardiovascular dysfunction in the intensive care unit. However, the existing techniques for continuous estimation of stroke volume (SV) from pressure measurement can be unreliable during hemodynamic instability, which is inevitable for patients requiring significant treatment. For this reason, pressure contour methods must be improved to capture changes in vascular properties and thus provide accurate conversion from pressure to flow...
April 24, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28436152/multispecialty-involvement-in-the-management-of-type-b-aortic-dissections-in-the-endovascular-era-implications-for-training-cardiothoracic-residents
#6
Corbin Muetterties, Rohan Menon, William Moser, Nels Carroll, Kathleen Marulanda, Myunghan Choi, Grayson H Wheatley
PURPOSE: Involvement of qualified specialists with proficiency in endovascular therapies has created flux regarding the role of cardiothoracic surgeons, vascular surgeons, and other catheter-skilled specialists in the management of type B aortic dissections. We used manuscript authorship trends and recent match data in order to study how multi-specialty involvement in treating aortic dissections has changed in the endovascular era. METHODS: A PubMed review of published literature between 1998 and 2015 was performed with "aortic dissection" in the title...
April 23, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28430904/catheter-based-tricuspid-valve-replacement-first-experimental-data-of-a-newly-designed-bileaflet-stent-graft-prosthesis%C3%A2
#7
Henning F Lausberg, Rafal Gryszkiewicz, Maximilian Kuetting, Moritz Baumgaertner, Marcos Centola, Hans-Peter Wendel, Martina Nowak-Machen, David Schibilsky, Tobias Kruger, Christian Schlensak
OBJECTIVES: Moderate or severe degree tricuspid valve regurgitation (TVR) is associated with high rates of morbidity and mortality. Surgical correction as the only therapeutic option offers unsatisfactory results. Recently, several interventional procedures have been introduced clinically in a limited cohort. We present our initial experiments with an innovative interventional valved stent graft for treatment of TVR. METHODS: A newly designed porcine pericardium-covered nitinol stent graft with a lateral bicuspid valve was adapted to size in a cadaver study...
April 18, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28430315/adding-access-blood-flow-surveillance-reduces-thrombosis-and-improves-arteriovenous-fistula-patency-a-randomized-controlled-trial
#8
Inés Aragoncillo, Soraya Abad, Silvia Caldés, Yésika Amézquita, Almudena Vega, Antonio Cirugeda, Cristina Moratilla, José Ibeas, Ramón Roca-Tey, Cristina Fernández, Nicolás Macías, Borja Quiroga, Ana Blanco, Maite Villaverde, Caridad Ruiz, Belén Martín, Asunción M Ruiz, Jara Ampuero, Fernando de Alvaro, Juan M López-Gómez
PURPOSE: Stenosis is the main cause of arteriovenous fistula (AVF) failure. It is still unclear whether surveillance based on vascular access blood flow (QA) enhances AVF function and longevity. METHODS: We conducted a three-year follow-up randomized, controlled, multicenter, open-label trial to compare QA-based surveillance and pre-emptive repair of subclinical stenosis with standard monitoring/surveillance techniques in prevalent mature AVFs. AVFs were randomized to either the control group (surveillance based on classic alarm criteria; n = 104) or to the QA group (QA measured quarterly using Doppler ultrasound [M-Turbo®] and ultrasound dilution [Transonic®] added to classic surveillance; n = 103)...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430309/variation-in-use-of-technology-among-vascular-access-specialists-an-analysis-of-the-picc1-survey
#9
Vineet Chopra, Latoya Kuhn, David Ratz, Suzanne Winter, Peter J Carr, David Paje, Sarah L Krein
BACKGROUND: While the use of technologies such as ultrasound and electrocardiographic (ECG) guidance systems to place peripherally inserted central catheters (PICCs) has grown, little is known about the clinicians who use these tools or their work settings. METHODS: Using data from a national survey of vascular access specialists, we identified technology users as PICC inserters that: (a) use ultrasound to find a suitable vein for catheter placement; (b) measure catheter-to-vein ratio; and (c) use ECG for PICC placement...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28429637/analysis-of-rotation-angles-and-motions-of-the-flexible-mechanisms-in-bifurcated-blood-vessels
#10
Bin He, Shoulin Xu, An Ding, Yanmin Zhou
This article investigates the relationship of rotation angle of two ends of elastic guidewires, and motion method of guidewires and catheters in bifurcated blood vessels. The relationship of rotation angles of the two ends of the guidewire has first been studied by mathematical reasoning, indicating that the rotation angle of the front end of guidewire can be precisely described by that of the rear end. In order to satisfy the requirements of different vascular interventional surgeries, we further investigated a general model of bifurcated human blood vessels...
April 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28427593/economic-outcomes-of-bioresorbable%C3%A2-vascular-scaffolds-versus%C3%A2-everolimus-eluting-stents-in-patients%C3%A2-undergoing-percutaneous-coronary-intervention-1-year-results-from-the-absorb%C3%A2-iii-trial
#11
Suzanne J Baron, Yang Lei, Khaja Chinnakondepalli, Katherine Vilain, Elizabeth A Magnuson, Dean J Kereiakes, Stephen G Ellis, Gregg W Stone, David J Cohen
OBJECTIVES: The purpose of this study was to evaluate the economic impact of the Absorb bioresorbable vascular scaffold compared with the Xience everolimus-eluting stent in patients undergoing percutaneous coronary intervention. BACKGROUND: The ABSORB III trial (Everolimus-Eluting Bioresorbable Scaffolds for Coronary Artery Disease) demonstrated that the Absorb scaffold was noninferior to the Xience stent with respect to target lesion failure at 1 year. Whether health care costs differ between the Absorb scaffold and the Xience stent is unknown...
April 24, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28425161/atorvastatin-treatment-modulates-p16-promoter-methylation-to-regulate-p16-expression
#12
Boqian Zhu, Yaoyao Gong, Gaoliang Yan, Dong Wang, Qingjie Wang, Yong Qiao, Jiantong Hou, Bo Liu, Chengchun Tang
Intimal hyperplasia, the key event of artery restenosis, was a result of cell proliferation and cell migration. Atorvastatin experts an inhibitory effect on cell proliferation and migration but its mechanism remains largely unknown. p16, as a well-known tumor suppressor, was also reported to suppress cell growth and migration, but with vague mechanism. In this study, we demonstrated atorvastatin represses cell proliferation and migration in vascular smooth muscle cells (VSMCs), which process is mediated by p16...
April 20, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28420654/changes-in-the-profile-of-endovascular-procedures-performed-in-freestanding-dialysis-access-centers-over-15-years
#13
Gerald A Beathard, Aris Urbanes, Terry Litchfield
BACKGROUND AND OBJECTIVES: Marked changes occurred in the vascular access profile of patients receiving hemodialysis in the United States over the 15-year period of 2001-2015. This study was undertaken to evaluate how these changes have affected dialysis access maintenance and salvage procedures performed in freestanding dialysis access centers and to examine the effectiveness, efficiency, and safety of these procedures in this setting. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Data were collected from freestanding, dedicated dialysis access centers operating under a common system of management...
April 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28420481/safety-and-feasibility-of-subcutaneous-purse-string-suture-of-the-femoral-vein-after-electrophysiological-procedures-on-uninterrupted-oral-anticoagulation
#14
Marc Kottmaier, Felix Bourier, Tilko Reents, Alina Reiter, Marielouise Kornmayer, Verena Semmler, Martha Telishevska, Katharina Koch-Büttner, Michael Deiss, Stephanie Brooks, Christian Grebmer, Carsten Lennerz, Christoph Kolb, Gabriele Hessling, Isabel Deisenhofer
The aim of this study was to compare safety and feasibility of a subcutaneous purse-string suture (PSS) with manual compression (MC) to gain hemostasis in patients after multiple femoral venous punctures undergoing electrophysiological procedures on uninterrupted oral anticoagulation (OAK). A total of 784 patients who underwent catheter ablation for atrial fibrillation (n = 564) or (a)typical atrial flutter (n = 220) were assessed. Four hundred sixty-two patients received PSS (58.9%) and 322 patients (41...
March 16, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28419012/a-novel-needle-free-blood-draw-device-for-sample-collection-from-short-peripheral-catheters
#15
Caprice Cadacio, Irving Nachamkin
A new US Food and Drug Administration-cleared needleless blood collection device (PIVO; Velano Vascular, San Francisco, CA) for short peripheral catheters was compared with conventional venipuncture for collecting blood samples for routine laboratory analysis from adult healthy volunteers. The PIVO device was comparable with venipuncture in terms of providing high-integrity samples (no hemolysis or clotting), equivalent laboratory values, and better patient experience as assessed by pain scores. Further studies to assess the overall utility of the PIVO device are warranted...
May 2017: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/28419010/extending-short-peripheral-catheter-dwell-time-a-best-practice-discussion
#16
Brenda Ansel, Michelle Boyce, Jennifer L Embree
Complications involving short peripheral catheters (SPCs) can significantly affect health care costs, patient quality of life, morbidity, mortality, and treatment expense, especially when the hospital stay is lengthened. This article examines the relationship between SPC dwell time and the incidence of phlebitis and potential bacteremia. The literature is replete with most studies supporting SPCs remaining in situ until a clinical reason warrants catheter removal. Removing and not routinely restarting unneccessary intravenous catheters can help prevent catheter-related infections and other vascular complications and reduce cost...
May 2017: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/28418506/an-improved-optical-flow-method-for-blood-velocimetry
#17
Zifeng Yang, Hongtao Yu, George P Huang, Bryan Ludwig
Detailed blood velocity map in vascular system can be obtained by applying the optical flow method (OFM) in processing fluoroscopic digital subtracted catheter angiographic images, however, there are still challenges with the accuracy of this method. In the present study, a divergence compensatory Optical Flow Method (DC-OFM), in which a non-zero divergence of velocity is assumed due to the finite resolution of the image, was explored and applied to the digital subtraction angiography (DSA) images of blood flow...
April 17, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28416162/pharmacokinetics-of-buprenorphine-following-constant-rate-infusion-for-postoperative-analgesia-in-dogs-undergoing-ovariectomy
#18
Andrea Barbarossa, Julie Rambaldi, Massimo Giunti, Anna Zaghini, Marco Cunto, Daniele Zambelli, Simond Valgimigli, Francesco Santoro, Noemi Romagnoli
OBJECTIVE: To investigate the pharmacokinetics of buprenorphine and its main active metabolite, norbuprenorphine, after administration of an intravenous loading dose followed by constant rate infusion (CRI) in dogs. STUDY DESIGN: Prospective, clinical study. ANIMALS: A total of seven healthy dogs undergoing elective ovariectomy. METHODS: Buprenorphine was administered as a loading dose (intravenous bolus of 15 μg kg(-1)) followed by CRI (2...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28410645/epidemiology-and-risk-factors-for-early-mortality-after-dialysis-initiation
#19
REVIEW
Robert N Foley
Confronted with the decision to initiate dialysis, patients and caregivers often seek information about how expected survival chances evolve, both initially and afterward, providing the patient survives beyond arbitrary periods of time. Large registry data, used to examine these issues, may be subject to early ascertainment bias, such as those accruing from nonregistration of with end-stage kidney disease who die shortly after dialysis initiation and inclusion of patients with acute kidney injury with slower than typical recovery rates...
March 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28408667/draft-genome-sequence-of-roseomonas-mucosa-strain-au37-isolated-from-a-peripheral-intravenous-catheter
#20
Md Abu Choudhury, Alexander M Wailan, Hanna E Sidjabat, Li Zhang, Nicole Marsh, Claire M Rickard, Mark R Davies, David J McMillan
Roseomonas mucosa is an opportunistic pathogen that causes infections in humans and is often associated with vascular catheter-related bacteremia. Here, we report the draft genome sequence of Roseomonas mucosa strain AU37, isolated from a peripheral intravenous catheter tip.
April 13, 2017: Genome Announcements
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