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https://www.readbyqxmd.com/read/28440738/restricted-feeding-modulates-the-daily-variations-of-liver-glutamate-dehydrogenase-activity-expression-and-histological-location
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/28348733/complications-after-implantation-of-subcutaneous-central-venous-ports-powerport-%C3%A2
#12
Takatoshi Nakamura, Jiichiro Sasaki, Yasushi Asari, Takeo Sato, Shinzo Torii, Masahiko Watanabe
BACKGROUND: The aim of our study was revised as follows: to clarify the postoperative complications of multifunctional central venous ports and the risk factors for such complications to promote the safe use of the PowerPort system in the hospital. METHODS: The study group comprised 132 patients in whom implantable central venous access ports (PowerPort(Ⓡ)) were placed in our hospital from March 2014 through December 2015. The approach used for port placement was the subclavian vein in 43 patients (33%), the internal jugular vein in 87 patients (66%), and the femoral vein in 2 patients (1%)...
May 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28341509/dialysis-access-hemorrhage-access-rescue-from-a-surgical-emergency
#13
Tazo Inui, Valy Boulom, Dennis Bandyk, John S Lane, Erik Owens, Andrew Barleben
OBJECTIVE: Hemorrhage from a dialysis access can be a life-threatening condition. This study details our experience using access rescue strategies, including in situ graft replacement, primary repair, or conversion to an autogenous fistula; coupled with treatment of central vein occlusion to maintain access usage in patients presenting with conduit hemorrhage. METHODS: During a 3-yr period (2012-2014), 26 patients (14 women, 12 men) on chronic hemodialysis were treated for access conduit bleeding (n=18) or life-threatening hemorrhage (n=8); located in the upper extremity (n=23) or thigh (n=3)...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28341502/significance-of-blunted-venous-waveforms-seen-on-upper-extremity-ultrasound
#14
Xuan-Binh D Pham, Ezinne J Ihenachor, Hoover Wu, Jerry J Kim, Amy H Kaji, Matthew C Koopmann, Timothy J Ryan, Christian de Virgilio
INTRODUCTION: Current guidelines recommend vascular mapping ultrasound (US) prior to arteriovenous fistula creation. Blunted venous waveforms (BVW) suggest central venous stenosis; however, this relationship and one between BVW and the presence of a central venous catheter (CVC) remain unclear. MATERIAL AND METHODS: All patients who received upper-extremity vascular mapping US between January 2013 and October 2014 at a single institution were retrospectively reviewed...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28323667/central-venous-access-in-children-indications-devices-and-risks
#15
Guillermo Ares, Catherine J Hunter
PURPOSE OF REVIEW: Central venous catheters (CVCs) have a prominent role in the diagnostic and therapy of neonates and children. Herein, we describe the multiple indications for CVC use and the different devices available for central venous access. Given the prevalent use of CVCs, healthcare systems are focused on reducing complications from their use, particularly central line-associated bloodstream infections (CLABSIs). The most up-to-date information available sheds light on best practices and future areas of investigation...
March 18, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28306627/novel-microspheres-reduce-the-formation-of-deep-venous-thrombosis-and-repair-the-vascular-wall-in-a-rat-model
#16
Bingyang Dai, Lan Li, Qiangqiang Li, Xiaoxiao Song, Dongyang Chen, Jin Dai, Yao Yao, Wenjin Yan, Huajian Teng, Fang Yang, Zhihong Xu, Qing Jiang
L-Arginine (L-arg), widely known as a substrate for endogenous nitric oxide synthesis, can improve endothelial function associated with the vasculature, inhibit platelet aggregation, and alter the activity of vascular smooth muscle cells. P-selectin is a membrane component of the platelet alpha-granule and the endothelial cell-specific Wiebel-Palade body that plays a central role in mediating interactions between platelets and both leukocytes and the endothelium. The experiment was designed to evaluate the effect of novel microspheres with L-arg targeting P-selectin on the formation of deep vein thrombosis and repair of vascular wall in a rat model...
March 16, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28297066/cerebral-hyperperfusion-and-other-consequences-of-hemodialysis-central-vein-catheters
#17
Haimanot Wasse
While central venous stenosis is a common consequence of protracted central venous catheter use, intracardiac device transvenous leads, and central venous instrumentation, the majority of patients who develop symptomatic central venous stenosis present with characteristic venous hypertension. However, some patients may develop an abnormal intracranial venous circulation and present with neurologic symptoms. This paper will summarize findings from case reports that describe the neurologic sequelae that can develop as a result of central venous stenosis/occlusion in end-stage renal disease patients with a functional arteriovenous access...
March 6, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28297051/endovascular-treatment-to-boost-av-fistula-maturation
#18
Lars Kamper, Patrick Haage
Impaired fistula maturation is associated with puncture-related complications, insufficient dialysis and potential permanent access failure. Non-maturation is frequently initiated by stenotic vascular access vessels comprising the outflow veins, the arteriovenous anastomosis and infrequently the inflow artery. Further findings in maturation protraction are central venous stenoses or accessory outflow veins. Depending on the underlying pathology, several endovascular approaches to boost fistula maturation are possible...
March 6, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28286186/placement-of-upper-extremity-arteriovenous-access-in-patients-with-central-venous-occlusions-a-novel-technique
#19
Allen G Murga, Jason T Chiriano, Christian Bianchi, Neha Sheng, Sheela Patel, Ahmed M Abou-Zamzam, Theodore H Teruya
BACKGROUND: Central venous occlusion is a common occurrence in patients with end-stage renal disease. Placement of upper extremity arteriovenous access in patients with occlusion of the brachiocephalic veins is often not an option. Avoidance of lower extremity vascular access can decrease morbidity and infection. METHODS: The central venous lesions were crossed centrally via femoral access. The wire was retrieved in the neck extravascularly. A Hemodialysis Reliable Outflow catheter was then placed in the right atrium and completed with an arterial anastomosis...
March 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28255132/extra-anatomical-veno-venous-surgical-bypass-for-central-vein-occlusion-in-patients-with-ipsilateral-arterio-venous-fistula-avf-for-haemodialysis-a-single-centre-experience
#20
K S Saravana, A A Zainal
OBJECTIVE: Central vein occlusion is a common complication related to central vein catheter insertion for haemodialysis which can be unmasked by an ipsilateral fistula creation, leading to a dysfunctional arteriovenous fistula (AVF). We describe an extra-anatomical venous bypass surgical procedure performed to maintain vascular access and reduce the symptoms of swelling of the ipsilateral upper limb, neck and face. MATERIALS AND METHODS: We report 20 consecutive patients with end-stage renal failure (ESRF) who had central vein occlusion and were not amenable to endovascular intervention...
February 2017: Medical Journal of Malaysia
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