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Vascular catheters device

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https://www.readbyqxmd.com/read/28932593/successful-removal-of-embolized-chemoport-catheter-within-the-heart-and-pericardium-3-case-reports
#1
Shin-Eui Yoon, Chang Hoon Lee
Central venous access devices are routinely used in patients with cancer. Although rare, catheter transaction with subsequent embolization is one of the major complications of intra-vascular devices. We describe two patients with embolized chemoport catheters within the heart that were successfully removed percutaneously using a goose-neck snare technique. We also describe a third patient with a fractured intra-vascular catheter in the pericardium removed by pericardiotomy, which can be the first case of the kind...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28931265/diagnostic-and-interventional-optical-angioscopy-in-ex-vivo-carotid-arteries
#2
Luis E Savastano, Neeraj Chaudhary, Carlos Murga-Zamalloa, Michael Wang, Thomas Wang, B Gregory Thompson
BACKGROUND: Angioscopy - or endovascular endoscopy - is a catheter-based technique employing a flexible fiberoptic angioscope to directly visualize arterial lumen. Poor resolution and excessive stiffness of pre-existent angioscopes limited their use clinically. Recent advances resulted in novel fused optical fiber bundle angioscopes with improved flexibility and imaging resolution. Use of these devices in endovascular neurosurgery is still largely unexplored. OBJECTIVE: To evaluate image quality and feasibility of optical angioscopes for diagnostic and interventional neuro-angioscopy in carotid arteries of human cadavers...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28923785/transcatheter-mitral-valve-replacement-of-navigate-bioprosthesis-in-a-preclinical-model
#3
Haytham Elgharably, Jose L Navia, Cristian Baeza, Gabriel Maluenda, Samir Kapadia, Jerzy Sadowski, Krzysztof Bartuś, Cesare Beghi, Kalathi Thyagarajan, Ryan Bertwell, Rodolfo C Quijano
AIMS: To test the feasibility of trans-catheter mitral valve implantation of the NaviGate device in acute and chronic preclinical models. METHODS AND RESULTS: We evaluated the NaviGate valved stent implantation in the mitral position in an acute swine model (n=24, ≤ 5 days) through three different approaches: trans-atrial, trans-apical, and trans-septal, and in a chronic swine model (n=12, >10 days) through a trans-atrial approach. The NaviGate implantation procedures were successful in 83% of the acute model studies (n=20) and 83% of the chronic model studies (n=10)...
September 19, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28913733/a-prospective-feasibility-trial-of-a-novel-intravascular-catheter-system-with-retractable-coiled-tip-guidewire-placed-in-difficult-intravascular-access-diva-patients-in-the-emergency-department
#4
Christopher Raio, Robert Elspermann, Natwalee Kittisarapong, Brendon Stankard, Tanya Bajaj, Veena Modayil, Mathew Nelson, Gerardo Chiricolo, Benjamin Wie, Alexandra Snock, Michael Mackay, Adam Ash
The primary study objective was to evaluate insertion success rates. Secondary objectives included patient satisfaction, procedure time, complication rates, completion of therapy and dwell time of the novel AccuCath(®) 2.25″ Blood Control (BC) Catheter System (FDA approved) placed in difficult-access patients. This was a single-arm feasibility trial evaluating the AccuCath(®) 2.25″ BC Catheter System in a convenience sample of DIVA patients defined as at least two failed initial attempts or a history of difficult access plus the inability to directly visualize or palpate a target vein...
September 14, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28887711/in-vitro-remodeling-and-structural-characterization-of-degradable-polymer-scaffold-based-tissue-engineered-vascular-grafts-using-optical-coherence-tomography
#5
Wanwen Chen, Junqing Yang, Wenjun Liao, Jiahui Zhou, Jianyi Zheng, Yueheng Wu, Dongfeng Li, Zhanyi Lin
Non-destructive imaging strategies to monitor long-term cultures is essential for vascular engineering. The goal of this study is to investigate whether optical coherence tomography (OCT) can be a suitable approach to monitor the long-term remodeling process of biodegradable polymeric scaffold-based tissue-engineered vascular grafts (TEVG) after pulsatile stimulation and to observe polymeric scaffold degradation during bioreactor cultivation. In the present study, a perfusion system driven by a ventricular assist device was provided for a three-dimensional culture system as a pulsatile force...
September 8, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28879604/experiments-for-the-development-of-a-steerable-microcatheter
#6
Yoshitaka Inaba, Yasuaki Arai, Miyuki Sone, Takeshi Aramaki, Keigo Osuga, Hayao Tanaka, Kenichi Kanemasa
PURPOSE: Sumitomo Bakelite has developed a steerable microcatheter with a mechanism on the handle for changing the direction of the catheter tip. Experiments were conducted in an animal model to evaluate the practicality of the catheter with the goal of introduction into clinical use. MATERIALS AND METHODS: The steerable microcatheter has the following specifications: external diameter 2.4F/2.9F (distal/proximal portion); internal diameter 0.021 inches; effective length 125 cm; and it is fitted with a dial on the proximal portion for moving the tip...
September 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28873268/a-novel-in-vitro-model-for-hematogenous-spreading-of-s-aureus-device-biofilms-demonstrating-clumping-dispersal-as-an-advantageous-dissemination-mechanism
#7
R B Grønnemose, K L Saederup, H J Kolmos, S W K Hansen, C A Asferg, K J Rasmussen, Y Palarasah, T E Andersen
Staphylococcus aureus is able to disseminate from vascular device biofilms to the blood and organs, resulting in life-threatening infections such as endocarditis. The mechanisms behind spreading are largely unknown, especially how the bacterium escapes immune effectors and antibiotics in the process. Using an in vitro catheter infection model, we studied S. aureus biofilm growth, late-stage dispersal, and reattachment to downstream endothelial cell layers. The ability of the released biofilm material to resist host response and disseminate in vivo was furthermore studied in whole blood- and phagocyte survival assays, and in a short-term murine infection model...
September 5, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28810961/resuscitation-of-hypotensive-traumatic-brain-injured-animals-with-spray-dried-plasma-does-not-adversely-alter-physiology-and-improves-blood-brain-barrier-function
#8
Steven McDaniel, Stephanie Golla, Anthony N Moore, Joe DaCorta, Arthur Bode, Shibani Pati, Pramod K Dash, Jing Zhao
INTRODUCTION: According to the Defense and Veterans Brain Injury Center and the Armed Forces Health Surveillance Center, the number of soldiers who have sustained a traumatic brain injury (TBI) has risen dramatically over the past decade. Studies have shown that brain damage can be exacerbated if blood loss occurs (often occurring in polytrauma). As blood supply is critical for brain function and survival, TBI patients must be properly resuscitated to maintain blood volume, blood pressure, and cerebral perfusion...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28802790/vascular-air-embolism-a-silent-hazard-to-patient-safety
#9
REVIEW
Sorin J Brull, Richard C Prielipp
PURPOSE: To narratively review published information on prevention, detection, pathophysiology, and appropriate treatment of vascular air embolism (VAE). MATERIALS AND METHODS: MEDLINE, SCOPUS, Cochrane Central Register and Google Scholar databases were searched for data published through October 2016. The Manufacturer and User Facility Device Experience (MAUDE) database was queried for "air embolism" reports (years 2011-2016). RESULTS: VAE may be introduced through disruption in the integrity of the venous circulation that occurs during insertion, maintenance, or removal of intravenous or central venous catheters...
August 7, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28796429/comparison-of-time-to-obtain-intraosseous-versus-jugular-venous-catheterization-on-canine-cadavers
#10
Alison R Allukian, Amanda L Abelson, Jonathan Babyak, Elizabeth A Rozanski
OBJECTIVE: To compare the time required and the success rate of personnel with 4 different levels of experience to place a humeral intraosseous (IO) catheter versus a jugular venous catheter (IV) in cadaver dogs. DESIGN: Prospective study. SETTING: Veterinary university teaching hospital. INTERVENTIONS: Canine cadavers from recently euthanized dogs were obtained from the cadaver donation program between May and December 2014...
September 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28777415/repositioning-of-central-venous-access-devices-using-a-high-flow-flush-technique-a-clinical-practice-and-cost-review
#11
Timothy R Spencer
BACKGROUND: Malpositioned central venous access device (CVAD) tip locations can cause significant mechanical and chemical vessel-related injuries and complications if left in inappropriate positions.The aim of this study is to determine the use of a high-flow flush technique (HFFT) in successful correction of malpositioned catheters into the lower superior vena cava or cavoatrial junction and provide a cost comparison to interventional/fluoroscopic-based repositioning. METHODS: This is a Retrospective chart and radiographic review of all inserted CVADs found malpositioned between 1996-2014 in a multi-specialty 1000-bed tertiary trauma center in Sydney, Australia...
August 2, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28777412/atypical-use-of-picc-in-infants-and-small-children-a-unicentric-experience
#12
Filippo Bernasconi, Clelia Zanaboni, Andrea Dato, Andrea Dolcino, Michela Bevilacqua, Luigi Montagnini, Nicola Disma
INTRODUCTION: The peripherally inserted central catheters (PICCs) are vascular access devices (VAD) that are increasingly being used in the pediatric population. If a small vein caliber prevents positioning the catheter in the arm, the following step is to position the same catheter in the supraclavicular area, which can be defined as an off-label use or "atypical" approach, first described by Pittiruti. MATERIALS AND METHODS: We retrospectively reviewed PICC positioning with puncture-site in the supra-clavicular area ("atypical" PICC insertion) and then tunneled on the chest...
July 29, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28759102/a-biaxial-strain-based-expansion-mechanism-for-auxetic-stent-deployment
#13
Faiza Bukhari, Umar Ansari, Murtaza Najabat Ali, Hafsah Akhtar, Sarim Asif, Umer Mohammad, Mariam Mir
BACKGROUND: Auxetics, a special class of materials, tend to expand both in the radial and longitudinal directions when a unidirectional tensile force is applied. Recently, studies have come up with new designs for auxetic vascular and nonvascular stents which are deployed with commercial balloon catheters. There are some inherent limitations associated with a unidirectional application of expansion force in the effective deployment of stents. This work proposed a solution to some of these limitations through the use of a biaxial mode of a predetermined strain-based expansion mechanism...
July 27, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28754398/management-of-implantable-cardioverter-defibrillator-recipients-care-beyond-guidelines
#14
REVIEW
François Philippon, Laurence D Sterns, Pablo B Nery, Ratika Parkash, David Birnie, Claus Rinne, Blandine Mondesert, Derek Exner, Matthew Bennett
This companion article is intended to address common clinical scenarios in patients with implantable defibrillators that were not addressed in the 2016 Canadian Cardiovascular Society/Canadian Heart Rhythm Society implantable cardioverter defibrillator guidelines including recommendations for device programming to improve detection, to minimize shocks (appropriate and inappropriate), and to minimize ventricular pacing. Important issues at the time of replacement such as device prescription, technical aspects (vascular access, extraction), and management of components on advisories are also discussed...
August 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28752830/healthcare-associated-infection-good-practices-knowledge-and-the-locus-of-control-in-heatlhcare-professionals
#15
Chiara Taffurelli, Alfonso Sollami, Carmen Camera, Francesca Federa, Annise Grandi, Marcella Marino, Tiziano Marrosu, Leopoldo Sarli
BACKGROUND AND AIM:   The incidence of Healthcare Associated Infections (HAI) is an important indicator of the quality of care. The behaviors associated with the prevention of infections are not only supported by rational knowledge or motivation, but are mediated by social, emotional and often stereotyped behaviors. The awarness of the good practices related to HAI, may be a factor. Other studies, identify how the perception of the problem in healthcare professionals is often influenced by a tendency towards an external Locus of Control: the patient, the family, the other wards, other care settings...
July 18, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28752227/feasibility-of-ultrasound-guided-vascular-access-during-cardiac-implantable-device-placement
#16
Jeffrey Lin, Graham Adsit, Anne Barnett, Matthew Tattersall, Michael E Field, Jennifer Wright
PURPOSE: Ultrasound (US)-guided access for venous catheter placement has previously been shown to improve success rates and decrease access-related complications. The purpose of this study was to determine the feasibility of US-guided versus traditional vascular access approaches during implantation of cardiac implantable electronic devices (CIEDs). METHODS: We evaluated outcomes for 816 consecutive patients undergoing new CIED implantation between May 2013 and April 2016 at a single institution with respect to use of US guidance for vascular access (137 with US guidance versus 679 with traditional access techniques)...
July 27, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28745951/preventing-bloodstream-infection-in-iv-therapy
#17
Kevin Hugill
Healthcare-associated infections (HAI) are one cause of preventable harm to patients, and are a clinical, political and economic concern. Vascular access, via a peripheral or central vascular device, is a routine experience for most patients receiving hospital care and is increasingly commonplace in health care at home. Because it is so common, ensuring safe vascular access is an essential focus for all health professionals. All vascular access procedures are invasive, regardless of patient group, therapeutic rationale, the device used, route and site of insertion and particular technique...
July 27, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28744885/water-infused-surface-protection-as-an-active-mechanism-for-fibrin-sheath-prevention-in-central-venous-catheters
#18
David W Sutherland, Xin Zhang, Joseph L Charest
Protein adhesion in central venous catheters (CVCs) leads to fibrin sheath formation, the precursor to thrombotic and biofilm-related CVC failures. Advances in material properties and surface coatings do not completely prevent fibrin sheath formation and post-formation treatment options are limited and expensive. We propose water infused surface protection (WISP), an active method for prevention of fibrin sheath formation on CVCs, which creates a blood-free boundary layer on the inner surface of the CVC, limiting blood contact with the CVC lumen wall...
July 26, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28739034/evaluation-of-resting-cardiac-power-output-as-a-prognostic-factor-in-patients-with-advanced-heart-failure
#19
Omer Yildiz, Gamze Aslan, Zumrut T Demirozu, Cemal Deniz Yenigun, Nuran Yazicioglu
If the heart is represented by a hydraulic pump, cardiac power represents the hydraulic function of the heart. Cardiac pump function is frequently determined through left ventricular ejection fraction using imaging. This study aims to validate resting cardiac power output (CPO) as a predictive biomarker in patients with advanced heart failure (HF). One hundred and seventy-two patients with HF severe enough to warrant cardiac transplantation were retrospectively reviewed at a single tertiary care institution between September 2010 and July 2013...
September 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28729382/recommended-clinical-trial-end-points-for-dialysis-catheters
#20
Michael Allon, Deborah J Brouwer-Maier, Kenneth Abreo, Kevin M Baskin, Kay Bregel, Deepa H Chand, Andrea M Easom, Leonard Mermel, Michele H Mokrzycki, Priti R Patel, Prabir Roy-Chaudhury, Surendra Shenoy, Rudolph P Valentini, Haimanot Wasse
Central venous catheters are used frequently in patients on hemodialysis as a bridge to a permanent vascular access. They are prone to frequent complications, including catheter-related bloodstream infection, catheter dysfunction, and central vein obstruction. There is a compelling need to develop new drugs or devices to prevent central venous catheter complications. We convened a multidisciplinary panel of experts to propose standardized definitions of catheter end points to guide the design of future clinical trials seeking approval from the Food and Drug Administration...
July 20, 2017: Clinical Journal of the American Society of Nephrology: CJASN
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