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https://www.readbyqxmd.com/read/28541960/clinical-features-of-treated-and-untreated-type-1-idiopathic-macular-telangiectasia-without-the-occurrence-of-secondary-choroidal-neovascularization-followed-for-2-years-in-japanese-patients
#1
Rie Osaka, Chieko Shiragami, Aoi Ono, Mamoru Kobayashi, Yukari Takasago, Ayana Yamashita, Akitaka Tsujikawa
PURPOSE: To evaluate the clinical features of Type 1 idiopathic macular telangiectasia (IMT) followed up for 2 years. METHODS: Forty-nine patients with unilateral Type 1 IMT were examined. Thirty-one IMT eyes were treated with direct laser photocoagulation and/or intravitreal bevacizumab; the remaining 18 eyes, with good vision or slight macular edema, were untreated. Changes in best-corrected visual acuity and central retinal thickness between baseline and 24 months after the initial visit were examined...
May 24, 2017: Retina
https://www.readbyqxmd.com/read/28541018/balloon-angioplasty-with-selective-stenting-strategy-in-treatment-of-hemodialysis-related-central-vein-occlusive-lesions
#2
Mahmoud Saleh, Haitham Ali, Ahmed Elbadawy, Ayman Hasaballah
BACKGROUND: The aim of this study was to evaluate the safety and efficacy of balloon angioplasty and selective stenting in treatment of symptomatic central vein occlusive lesions (CVOL) in patients with upper extremity hemodialysis access. METHODS: Seventy-four hemodialysis patients with symptomatic CVOL underwent endovascular therapy between March 2014 and November 2015. Both the primary and secondary patency rates were analyzed by the Kaplan-Meier plot method...
May 24, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28523170/a-comparison-of-longitudinal-and-transverse-approaches-to-ultrasound-guided-axillary-vein-cannulation-by-experienced-operators
#3
Yi-Zhou He, Ming Zhong, Wei Wu, Jie-Qiong Song, Du-Ming Zhu
BACKGROUND: The axillary vein is an easily accessible vessel that can be used for ultrasound-guided central vascular access and offers an alternative to the internal jugular and subclavian veins. The objective of this study was to identify which transducer orientation, longitudinal or transverse, is better for imaging the axillary vein with ultrasound. METHODS: We analyzed 236 patients who had undergone central venous cannulation of axillary vein in this retrospective study...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28515611/malposition-of-the-central-venous-catheter-a-diagnostic-dilemma
#4
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/28511151/peripheral-arteriovenous-fistula-as-vascular-access-for-long-term-chemotherapy
#5
Oleksiy O Kovalyov, Oleksandr G Kostyuk, Tetyana V Tkachuk
INTRODUCTION: To provide long-term vascular access in clinical oncology peripheral forearm veins (up to 95% of patients in Ukraine), central venous access and "complete implanted vascular systems" are used most often. Many oncology patients have contraindications to catheterization of superior vena cava. Besides, exploitation of central veins is associated with potential technical and infectious complications. The aim - to study short-term and long-term results of arteriovenous fistula exploitation as vascular access for continuous anticancer therapy...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28499668/a-multicenter-feasibility-study-on-ultrafiltration-via-a-single-peripheral-venous-access-in-acute-heart-failure-with-overt-fluid-overload
#6
Marco Morpurgo, Mario Pasqualini, Maria Cristiana Brunazzi, Gabriele Vianello, Roberto Valle, Loris Roncon, Fulvio Fiorini, Nadia Aspromonte, Mario Barbiero, Marco Goldoni, Giancarlo Marenzi
OBJECTIVES: The need for a central venous catheter has limited the widespread use of ultrafiltration in daily clinical practice for the treatment of acute heart failure (AHF) with overt fluid overload. We evaluated the feasibility of a new ultrafiltration device, the CHIARA (Congestive Heart Impairment Advanced Removal Approach) system, that utilizes a single-lumen cannula (17G, multi-hole) inserted in a peripheral vein of the arm. METHODS: In this multicenter, prospective, feasibility study, consecutive ultrafiltration treatments (lasting ≥6 hours and with an ultrafiltration rate ≥100ml/h) with the CHIARA device and a single peripheral venous approach were performed at 6 Italian hospitals...
May 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28488105/single-incision-versus-conventional-technique-for-tunneled-central-line-placement-in-children
#7
Daniel Ashton, Darshan Variyam, J Alberto Hernandez, Sheena Pimpalwar, Shireen Hayatghaibi, Kamlesh Kukreja
PURPOSE: A single-incision technique for tunneled central venous access has been described. This study evaluates whether single-incision technique in children is comparable to the conventional method, with regard to procedure time, fluoroscopy time, and complication rate. MATERIALS AND METHODS: This is a retrospective review of 303 internal jugular vein tunneled central catheter placements whose age ranged from newborn to 17 years (median 1.7 years) by pediatric interventional radiologists from January 2014 through December 2015...
May 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28487803/port-placement-via-the-anterior-jugular-venous-system-case-report-anatomic-considerations-and-literature-review
#8
Gernot Rott, Frieder Boecker
We report on a patient who was referred for port implantation with a two-chamber pacemaker aggregate on the right and total occlusion of the central veins on the left side. Venous access for port implantation was performed via left side puncture of the horizontal segment of the anterior jugular vein system (AJVS) and insertion of the port catheter using a crossover technique from the left to the right venous system via the jugular venous arch (JVA). The clinical significance of the AJVS and the JVA for central venous access and port implantation is emphasised and the corresponding literature is reviewed...
2017: Case Reports in Radiology
https://www.readbyqxmd.com/read/28482117/leaf-primordium-size-specifies-leaf-width-and-vein-number-among-row-type-classes-in-barley
#9
Venkatasubbu Thirulogachandar, Ahmad M Alqudah, Ravi Koppolu, Twan Rutten, Andreas Graner, Goetz Hensel, Jochen Kumlehn, Andrea Bräutigam, Nese Sreenivasulu, Thorsten Schnurbusch, Markus Kuhlmann
Exploring genes with impact on yield-related phenotypes is the preceding step to accomplish crop improvements while facing a growing world population. A genome-wide association scan on leaf blade area (LA) in a worldwide spring barley collection (Hordeum vulgare L.), including 125 two- and 93 six-rowed accessions, identified a gene encoding the homeobox transcription factor, Six-rowed spike 1 (VRS1). VRS1 was previously described as a key domestication gene affecting spike development. Its mutation converts two-rowed (wild-type VRS1, only central fertile spikelets) into six-rowed spikes (mutant vrs1, fully developed fertile central and lateral spikelets)...
May 8, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28440738/restricted-feeding-modulates-the-daily-variations-of-liver-glutamate-dehydrogenase-activity-expression-and-histological-location
#10
Olivia Vázquez-Martínez, Isabel Méndez, Isaías Turrubiate, Héctor Valente-Godínez, Moisés Pérez-Mendoza, Paola García-Tejada, Mauricio Díaz-Muñoz
Glutamate dehydrogenase is an important enzyme in the hepatic regulation of nitrogen and energy metabolism. It catalyzes one of the most relevant anaplerotic reactions. Although its relevance in liver homeostasis has been widely described, its daily pattern and responsiveness to restricted feeding protocols has not been studied. We explored the daily variations of liver glutamate dehydrogenase transcription, protein, activity, and histochemical and subcellular location in a protocol of daytime food synchronization in rats...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28440110/in-parallel-connected-intermittent-hemodialysis-through-ecmo-does-not-affect-hemodynamic-parameters-derived-from-transpulmonary-thermodilution
#11
Tobias Lahmer, Ulrich Mayr, Sebastian Rasch, Gonzalo Batres Baires, Roland M Schmid, Wolfgang Huber
INTRODUCTION: We report a case of renal replacement therapy (RRT) during extracorporeal membrane oxygenation (ECMO) via a single venous access and analyze the feasibility of transpulmonary thermodilution (TPTD) for hemodynamic monitoring. CASE REPORT: ECMO and RRT connected into the ECMO-extracorporeal circuit were performed via a single venous access because of multiple venous thromboses. An indicator for TPTD and pulse contour analysis (PCA) was applied into the central venous catheter (CVC) placed in the right vena jugularis...
April 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28439199/comparison-of-methods-and-formulas-used-in-umbilical-venous-catheter-placement
#12
Mehmet Mutlu, Burcu Küçükalioğlu Parıltan, Yakup Aslan, İlker Eyüpoğlu, Şebnem Kader, Filiz Acar Aktürk
AIM: Central venous access is frequently provided by way of umbilical venous catheter placement in critically ill newborns. This study compared the methods of Dunn, Shukla-Ferrara, and Revised Shukla-Ferrara in determining the appropriate insertion length of umbilical vein catheters. MATERIAL AND METHODS: This prospective observational study was carried out in 121 newborns with umbilical venous catheter, group 1 (n=41) used Dunn method, group 2 (n=40) used the Shukla-Ferrara formula, and group 3 used revised Shukla-Ferrara formula (n=40)...
March 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28431651/modified-inside-out-technique-for-continued-use-of-chronically-occluded-upper-central-veins
#13
Adnan Hadziomerovic, Zameer Hirji, Niamh Coffey
This report describes a 2-step, inside-out procedure for upper body central venous access in patients with chronic central venous occlusions. Blunt cephalad dissection through the mediastinum was achieved with a curved metal cannula and guide wire followed by percutaneous puncture of an open snare from a right supraclavicular approach and dilation of the tract for a tunneled central venous catheter insertion. Of 9 patients, all had a successful placement of a tunneled central venous catheter using this method...
May 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28430317/treatment-of-central-venous-in-stent-restenosis-with-repeat-stent-deployment-in-hemodialysis-patients
#14
James Ronald, Bradley Davis, Carlos J Guevara, Waleska M Pabon-Ramos, Tony P Smith, Charles Y Kim
PURPOSE: To report patency rates for stent deployment for treatment of in-stent stenosis of the central veins of the chest in hemodialysis patients. MATERIALS AND METHODS: A retrospective analysis was performed on 29 patients who underwent 35 secondary percutaneous transluminal stent (PTS) deployments for in-stent stenosis within the central veins that were refractory to angioplasty and ipsilateral to a functioning hemodialysis access (in-stent PTS group). For comparison, patency data were acquired for 47 patients who underwent 78 successful percutaneous transluminal angioplasty (PTA) procedures for in-stent stenosis (in-stent PTA group) and 55 patients who underwent 55 stent deployments within native central vein stenosis refractory to angioplasty (native vein PTS group)...
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
#15
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/28393000/clinical-experience-with-ultrasound-guided-angioplasty-for-vascular-access
#16
Seong Cho, Yu-Ji Lee, Sung-Rok Kim
BACKGROUND: The use of ultrasound guided percutaneous transluminal angioplasty (UG-PTA), which use ultrasound as an imaging modality, is an evolving strategy. But, in Korea, this method is rarely used. We report our experiences with UG-PTA with respect to technical success rates and complication rates compared to conventional PTA (C-PTA), performed between 2010 and 2015 at Samsung Changwon Hospital, Korea. METHODS: In our series, 53 cases of UG-PTA and 90 cases of C-PTA were reviewed, respectively...
March 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28376682/insertion-of-a-totally-implantable-venous-access-port-in-a-patient-with-persistent-left-superior-vena-cava-plsvc
#17
Julie Van Walleghem, Sofie Depuydt, Stijn Schepers
Persistent left superior vena cava (PLSVC) is a rare congenital variant, but it is the most common venous thoracic malformation, occurring in 0.3-0.5% of the general population. PLSVC is caused by the persistence of the embryological left anterior cardinal vein which normally obliterates and persists as the Marshall ligament. We present the case of a 74-year-old male lung cancer patient, who already underwent an uncomplicated right-hand sided pacemaker insertion in 2006. During implantation of a subcutaneous central venous access port through puncture of the left subclavian vein, a PLSVC was discovered...
April 5, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28374282/a-randomised-crossover-study-to-compare-the-cross-sectional-and-longitudinal-approaches-to-ultrasound-guided-peripheral-venepuncture-in-a-model
#18
James Griffiths, Amadeus Carnegie, Richard Kendall, Rajeev Madan
BACKGROUND: Ultrasound-guided peripheral intravenous access may present an alternative to central or intraosseous access in patients with difficult peripheral veins. Using venepuncture of a phantom model as a proxy, we investigated whether novice ultrasound users should adopt a cross-sectional or longitudinal approach when learning to access peripheral veins under ultrasound guidance. This result would inform the development of a structured training method for this procedure. METHODS: We conducted a randomised controlled trial of 30 medical students...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28365108/hybrid-interventions-for-catheter-placement-in-pediatric-intestinal-rehabilitation-patients-with-end-stage-venous-access
#19
Ludger Sieverding, Andreas Busch, Jens Gesche, Gunnar Blumenstock, Ekkehard Sturm, Ilias Tsiflikas, Femke Piersma, Anja Hauser, Gesa Wiegand, Steffen Hartleif, Michael Hofbeck, Jörg Fuchs, Steven W Warmann
PURPOSE: The purpose of this study is to analyze the combined approach of endovascular and open surgical procedures for insertion of permanent central venous catheters in children with intestinal failure and end-stage venous access. METHODS: Data of 14 children (16 interventions) with intestinal failure and end-stage venous access, treated within the pediatric intestinal rehabilitation program at our institution between September 2011 and November 2016, were retrospectively reviewed...
March 24, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28355402/budd-chiari-syndrome-secondary-to-catheter-associated-inferior-vena-cava-thrombosis
#20
Gustavo N Araujo, Luciane M Restelatto, Carlos A Prompt, Cristina Karohl
INTRODUCTION: Patients with chronic kidney disease (CKD) are at increased risk for thrombotic complications. The use of central venous catheters as dialysis vascular access additionally increases this risk. We describe the first case of Budd-Chiari syndrome (BCS) secondary to central venous catheter misplacement in a patient with CKD. CASE REPORT: A 30-year-old female patient with HIV/AIDS and CKD on hemodialysis was admitted to the emergency room for complaints of fever, prostration, and headache in the last six days...
March 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
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