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https://www.readbyqxmd.com/read/29680297/early-results-of-percutaneous-arteriovenous-fistula-creation-with-the-ellipsys-vascular-access-system
#1
Alexandros Mallios, William C Jennings, Benoit Boura, Alessandro Costanzo, Pierre Bourquelot, Myriam Combes
OBJECTIVE: We reviewed our initial experience creating a percutaneous arteriovenous fistula (pAVF) using a thermal resistance anastomosis device with proximal radial artery inflow. METHODS: A retrospective review was conducted of all patients who underwent a pAVF creation procedure between May 2017 and October 2017. Primary end points of the study were technical success, patency by Doppler ultrasound examination or angiography, flow levels achieved, time to first use, and pAVF-related complications...
April 18, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29675625/multidetector-ct-of-iatrogenic-and-self-inflicted-vascular-lesions-and-infections-at-the-groin
#2
REVIEW
Massimo Tonolini, Anna Maria Ierardi, Gianpaolo Carrafiello, Domenico Laganà
The number and complexity of endovascular procedures performed via either arterial or venous access are steadily increasing. Albeit associated with higher morbidity compared to the radial approach, the traditional common femoral artery remains the preferred access site in a variety of cardiac, aortic, oncologic and peripheral vascular procedures. Both transarterial and venous cannulation (for electrophysiology, intravenous laser ablation and central catheterisation) at the groin may result in potentially severe vascular access site complications (VASC)...
April 19, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29674297/radial-artery-access-an-ongoing-paradigm-shift
#3
Martial Hamon
No abstract text is available yet for this article.
April 20, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29665617/transradial-versus-transfemoral-approach-for-diagnostic-coronary-angiography-and-percutaneous-coronary-intervention-in-people-with-coronary-artery-disease
#4
REVIEW
Ahmed A Kolkailah, Rabah S Alreshq, Ahmed M Muhammed, Mohamed E Zahran, Marwah Anas El-Wegoud, Ashraf F Nabhan
BACKGROUND: Cardiovascular disease (CVD) is the major cause of mortality worldwide. Coronary artery disease (CAD) contributes to half of mortalities caused by CVD. The mainstay of management of CAD is medical therapy and revascularisation. Revascularisation can be achieved via coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI). Peripheral arteries, such as the femoral or radial artery, provide the access to the coronary arteries to perform diagnostic or therapeutic (or both) procedures...
April 18, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29664431/safe-entry-site-for-coronary-angiography-snuff-box
#5
Emrah Bayam, Muzaffer Kahyaoğlu, Ahmet Güner, Regayip Zehir, Can Yücel Karabay
Coronary angiography and percutaneous coronary artery intervention are important tools for the diagnosis and treatment of coronary artery disease. Nevertheless, despite both technical and pharmacological advances, bleeding and vascular complications remain problematic. With recent trials supporting the safety and decreased bleeding risk associated with the radial approach, radial access has become more popular, and conferences providing instruction on this technique are often standing room only. Herein, a case in which coronary angiography was performed by punching through the radial artery snuff box (fovea radialis) is described...
April 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29651959/central-to-peripheral-arterial-stiffness-gradient-in-hemodialyzed-patients-depends-on-the-location-of-the-upper-limb-vascular-access
#6
Daniel Bia, Cintia Galli, Yanina Zocalo, Rodolfo Valtuille, Sandra Wray, Franco Pessana, Edmundo I Cabrera-Fischer
Pulse wave velocity ratio (PWV-ratio), a measure of central-to-peripheral arterial stiffness gradient, is calculated as a quotient between carotid-femoral and carotid-radial PWV (cf-PWV/cr-PWV). This new index has been reported to be significantly associated with increased mortality in hemodialyzed patients. Since several reports showed differences in arterial stiffness regarding the pathway where the vascular access (VA) is, the purpose of this research was: a) to compare arterial stiffness values obtained in the left and right sides of the body in hemodialyzed and non-hemodialyzed patients, and b) to analyze PWV-ratio values obtained in the side of the body where the VA was placed and compare them to its contralateral intact side...
April 13, 2018: Current Hypertension Reviews
https://www.readbyqxmd.com/read/29628223/the-distal-left-radial-artery-access-for-coronary-angiography-and-intervention-a-new-era
#7
Karim M Al-Azizi, Amir S Lotfi
BACKGROUND: Patients' intra and post procedural comfort, quick recovery, as well as procedure success, are key elements for choosing the right arterial access site. Radial artery access has been of increasing interest since it was first described. Advanced treatments of coronary lesions, from primary percutaneous interventions during ST elevation myocardial infarction cases to chronic total occlusion cases, have been increasingly done through the radial access. Distal left trans radial artery (dlTRA) is a new technique first described by Kiemineij...
March 26, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29615421/photoplethysmography-using-a-smartphone-application-for-assessment-of-ulnar-artery-patency-a-randomized-clinical-trial
#8
Pietro Di Santo, David T Harnett, Trevor Simard, F Daniel Ramirez, Ali Pourdjabbar, Altayyeb Yousef, Robert Moreland, Jordan Bernick, George Wells, Alexander Dick, Michel Le May, Marino Labinaz, Derek So, Pouya Motazedian, Richard G Jung, Jaya Chandrasekhar, Roxana Mehran, Aun-Yeong Chong, Benjamin Hibbert
BACKGROUND: Radial artery access is commonly performed for coronary angiography and invasive hemodynamic monitoring. Despite limitations in diagnostic accuracy, the modified Allen test (manual occlusion of radial and ulnar arteries followed by release of the latter and assessment of palmar blush) is used routinely to evaluate the collateral circulation to the hand and, therefore, to determine patient eligibility for radial artery access. We sought to evaluate whether a smartphone application may provide a superior alternative to the modified Allen test...
April 3, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/29602215/reduction-of-catheter-kinks-and-knots-via-radial-approach
#9
Itsik Ben-Dor, Toby Rogers, Lowell F Satler, Ron Waksman
Coronary angiography and percutaneous coronary intervention using the radial approach are becoming more frequent. Pronounced guide catheter manipulation in cases with tortuous access routes may lead to severe catheter kinking or knotting. The purpose of this review article is to present several techniques to resolve radial access catheter knots and kinks. First, simple maneuvers such as gentle traction, rotation, and guidewire advancement can often resolve minor kinking; however, complex loops and kinks are often not reversible with these simple maneuvers...
March 30, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29600966/asymmetric-dimethylarginine-as-a-useful-risk-marker-of-radial-artery-calcification-in-patients-with-advanced-kidney-disease
#10
Marcin Krzanowski, Katarzyna Krzanowska, Mariusz Gajda, Paulina Dumnicka, Grzegorz Kopeć, Bartłomiej Guzik, Karolina Woziwodzka, Artur Dziewierz, Jan A Litwin, Władysław Sułowicz
INTRODUCTION    Medial arterial calcification is common in patients with chronic kidney disease (CKD) and is considered a risk factor for morbidity and mortality. OBJECTIVES    We aimed to evaluate the correlation between asymmetric dimethylarginine (ADMA) levels, radial artery calcification, and common carotid artery intima-media thickness (CCA‑IMT). PATIENTS AND METHODS    The study included 51 patients with CKD, in whom an arteriovenous fistula for hemodialysis access was created to collect radial artery samples for a histological examination, and 33 healthy volunteers, in whom the reference concentrations of ADMA were assessed...
March 29, 2018: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29594964/cvit-expert-consensus-document-on-primary-percutaneous-coronary-intervention-pci-for-acute-myocardial-infarction-ami-in-2018
#11
REVIEW
Yukio Ozaki, Yuki Katagiri, Yoshinobu Onuma, Tetsuya Amano, Takashi Muramatsu, Ken Kozuma, Satoru Otsuji, Takafumi Ueno, Nobuo Shiode, Kazuya Kawai, Nobuhiro Tanaka, Kinzo Ueda, Takashi Akasaka, Keiichi Igarashi Hanaoka, Shiro Uemura, Hirotaka Oda, Yoshiaki Katahira, Kazushige Kadota, Eisho Kyo, Katsuhiko Sato, Tadaya Sato, Junya Shite, Koichi Nakao, Masami Nishino, Yutaka Hikichi, Junko Honye, Tetsuo Matsubara, Sumio Mizuno, Toshiya Muramatsu, Taku Inohara, Shun Kohsaka, Ichiro Michishita, Hiroyoshi Yokoi, Patrick W Serruys, Yuji Ikari, Masato Nakamura
While primary percutaneous coronary intervention (PCI) has significantly contributed to improve the mortality in patients with ST segment elevation myocardial infarction even in cardiogenic shock, primary PCI is a standard of care in most of Japanese institutions. Whereas there are high numbers of available facilities providing primary PCI in Japan, there are no clear guidelines focusing on procedural aspect of the standardized care. Whilst updated guidelines for the management of acute myocardial infarction were recently published by European Society of Cardiology, the following major changes are indicated; (1) radial access and drug-eluting stent over bare metal stent were recommended as Class I indication, and (2) complete revascularization before hospital discharge (either immediate or staged) is now considered as Class IIa recommendation...
March 29, 2018: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/29578203/coronary-angiography-using-the-left-distal-radial-approach-an-alternative-site-to-conventional-radial-coronary-angiography
#12
Elton Soydan, Mustafa Akın
OBJECTIVE: To share our experience with the left distal radial approach for transradial coronary angiography and interventions. By performing the radial puncture in the fossa radialis or the so called anatomical "Snuffbox" we aimed to present the feasibility and complications of this new technique. METHODS: Left distal radial artery was used as an access site in 54 patients admitted to our clinic for coronary angiography and intervention between May 25th and October 20th 2017...
March 21, 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29577030/eus-guided-gall-bladder-drainage-in-severe-liver-disease-a-single-center-experience-in-critically-ill-cirrhotics
#13
Kapil Dev Jamwal, Manoj Kumar Sharma, Rakhi Maiwall, Barjesh Kumar Sharma, Shiv Kumar Sarin
Background and Aims : Acute calculous cholecystitis with impending gall bladder perforation in severe liver diseases including decompensated cirrhosis and acute-on-chronic liver failure (ACLF) is difficult to manage, due to the procedures such as cholecystectomy and per cutaneous cholecystostomy being associated with high risk and complications in these patients. Methods : Four cases of severe liver disease with acute calculous cholecystitis who presented to the Institute of Liver and Biliary Sciences (New Delhi, India) for further management were included in the study if they underwent endoscopic ultrasound-guided gall bladder drainage (EUS-GBD)...
March 28, 2018: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/29570339/gouy-phase-radial-mode-sorter-for-light-concepts-and-experiments
#14
Xuemei Gu, Mario Krenn, Manuel Erhard, Anton Zeilinger
We present an in principle lossless sorter for radial modes of light, using accumulated Gouy phases. The experimental setups have been found by a computer algorithm, and can be intuitively understood in a geometric way. Together with the ability to sort angular-momentum modes, we now have access to the complete two-dimensional transverse plane of light. The device can readily be used in multiplexing classical information. On a quantum level, it is an analog of the Stern-Gerlach experiment-significant for the discussion of fundamental concepts in quantum physics...
March 9, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29562805/postnatal-dilatation-of-umbilical-cord-vessels-and-its-impact-on-wall-integrity-prerequisite-for-the-artificial-placenta
#15
Jenny Peng, Niels Rochow, Mohammadhossein Dabaghi, Radenka Bozanovic, Jan Jansen, Dragos Predescu, Bryon DeFrance, Sau-Young Lee, Gerhard Fusch, Ponnambalam Ravi Selvaganapathy, Christoph Fusch
INTRODUCTION: A lung assist device, which acts as an artificial placenta, can provide additional gas exchange for preterm and term newborns with respiratory failure. The concept of the lung assist device requires a large bore access via umbilical vessels to allow pumpless extracorporeal blood flow rates up to 30 mL/kg/min. After birth, constricted umbilical vessels need to be reopened for vascular access. The objective is to study the impact of umbilical vessel expansion on vessel integrity for achieving large bore access...
March 1, 2018: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29554860/combined-radial-and-femoral-access-strategy-and-radial-femoral-rendezvous-in-patients-with-long-and-complex-iliac-occlusions
#16
Elias B Hanna, Owen N Mogabgab, Hassan Baydoun
We present cases of complex, calcified iliac occlusive disease revascularized via a combined radial-femoral access strategy. Through a 6-French, 125-cm transradial guiding catheter, antegrade guidewires and catheters are advanced into the iliac occlusion, while retrograde devices are advanced transfemorally. The transradial and transfemoral channels communicate, allowing the devices to cross the occlusion into the true lumen (radial-femoral antegrade-retrograde rendezvous).
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29553735/hydration-water-distribution-around-intrinsically-disordered-proteins
#17
Leena Aggarwal, Parbati Biswas
The distribution and local structural order of hydration water in the proximity of intrinsically disordered proteins/regions are investigated within the frame work of 3D-RISM theory. The hydration water distribution around the protein surface is quantified in terms of the 3D distribution function and the water-protein radial distribution function, while the local ordering of water molecules around the protein surface is measured in terms of the tetrahedral order parameter. To the best of our knowledge, this is the first theoretical study of the 3D hydration water distribution profiles of disordered proteins...
March 19, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29550085/effect-of-procedure-and-coronary-lesion-characteristics-on-clinical-outcomes-among-atrial-fibrillation-patients-undergoing-percutaneous-coronary-intervention-insights-from-the-pioneer-af-pci-trial
#18
Mathieu Kerneis, C Michael Gibson, Gerald Chi, Roxana Mehran, Fahad AlKhalfan, Usama Talib, Seyedmahdi Pahlavani, Mahshid Mir, Christoph Bode, Jonathan L Halperin, Tarek Nafee, Eric D Peterson, Freek W A Verheugt, Peter Wildgoose, Martin van Eickels, Gregory Y H Lip, Keith A A Fox, Marc Cohen
OBJECTIVES: This study sought to assess whether there were significant interactions of procedural access strategies and lesion characteristics with bleeding and ischemic events among atrial fibrillation (AF) patients anticoagulated with rivaroxaban or warfarin following a percutaneous coronary intervention. BACKGROUND: Among stented AF patients, the impact of procedural access strategies or lesion characteristics on antithrombotic safety and efficacy outcomes is unclear...
March 8, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29544339/nuclear-quantum-effects-of-light-and-heavy-water-studied-by-all-electron-first-principles-path-integral-simulations
#19
Masahiko Machida, Koichiro Kato, Motoyuki Shiga
The isotopologs of liquid water, H2 O, D2 O, and T2 O, are studied systematically by first principles PIMD simulations, in which the whole entity of the electrons and nuclei are treated quantum mechanically. The simulation results are in reasonable agreement with available experimental data on isotope effects, in particular, on the peak shift in the radial distributions of H2 O and D2 O and the shift in the evaporation energies. It is found that, due to differences in nuclear quantum effects, the H atoms in the OH bonds more easily access the dissociative region up to the hydrogen bond center than the D (T) atoms in the OD (OT) bonds...
March 14, 2018: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29543187/early-clinical-experience-with-right-and-left-distal-transradial-access-in-the-anatomical-snuffbox-in-52-consecutive-patients
#20
Orazio Valsecchi, Angelina Vassileva, Alberto Francesco Cereda, Paolo Canova, Keisuke Satogami, Luigi Fiocca, Giulio Guagliumi
BACKGROUND: Distal transradial access in the anatomical snuffbox has advantages over standard access in terms of patient and operator comfort levels and risk of ischemia. Radial artery preservation could be a relevant issue in patients requiring multiple radial artery procedures and coronary bypass with the use of a radial graft. One relevant drawback is the challenging puncture of a small and weak artery, with a steeper learning curve. AIM: The study was aimed at proving feasibility and safety of right and left transradial access in the anatomical snuffbox...
March 15, 2018: Journal of Invasive Cardiology
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