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https://www.readbyqxmd.com/read/28197679/contrast-associated-acute-kidney-injury-in-the-critically-ill-systematic-review-and-bayesian-meta-analysis
#1
Stephan Ehrmann, Andrew Quartin, Brian P Hobbs, Vincent Robert-Edan, Cynthia Cely, Cynthia Bell, Genevieve Lyons, Tai Pham, Roland Schein, Yimin Geng, Karim Lakhal, Chaan S Ng
PURPOSE: Critically ill patients, among whom acute kidney injury is common, are often considered particularly vulnerable to iodinated contrast medium nephrotoxicity. However, the attributable incidence remains uncertain given the paucity of observational studies including a control group. This study assessed acute kidney injury incidence attributable to iodinated contrast media in critically ill patients based on new data accounting for sample and effect size and including a control group...
February 14, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28190602/prevention-of-acute-kidney-injury-in-intensive-care-units
#2
S Mas-Font, J Ros-Martinez, C Pérez-Calvo, P Villa-Díaz, S Aldunate-Calvo, E Moreno-Clari
Acute kidney injury (AKI) is a growing concern in Intensive Care Units. The advanced age of our patients, with the increase in associated morbidity and the complexity of the treatments provided favor the development of AKI. Since no effective treatment for AKI is available, all efforts are aimed at prevention and early detection of the disorder in order to establish secondary preventive measures to impede AKI progression. In critical patients, the most frequent causes are sepsis and situations that result in renal hypoperfusion; preventive measures are therefore directed at securing hydration and correct hemodynamics through fluid perfusion and the use of inotropic or vasoactive drugs, according to the underlying disease condition...
February 9, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28187739/the-global-cardiovascular-magnetic-resonance-registry-gcmr-of-the-society-for-cardiovascular-magnetic-resonance-scmr-its-goals-rationale-data-infrastructure-and-current-developments
#3
Raymond Y Kwong, Steffen E Petersen, Jeanette Schulz-Menger, Andrew E Arai, Scott E Bingham, Yucheng Chen, Yuna L Choi, Ricardo C Cury, Vanessa M Ferreira, Scott D Flamm, Kevin Steel, W Patricia Bandettini, Edward T Martin, Leelakrishna Nallamshetty, Stefan Neubauer, Subha V Raman, Erik B Schelbert, Uma S Valeti, Jie Jane Cao, Nathaniel Reichek, Alistair A Young, Lyuba Fexon, Misha Pivovarov, Victor A Ferrari, Orlando P Simonetti
BACKGROUND: With multifaceted imaging capabilities, cardiovascular magnetic resonance (CMR) is playing a progressively increasing role in the management of various cardiac conditions. A global registry that harmonizes data from international centers, with participation policies that aim to be open and inclusive of all CMR programs, can support future evidence-based growth in CMR. METHODS: The Global CMR Registry (GCMR) was established in 2013 under the auspices of the Society for Cardiovascular Magnetic Resonance (SCMR)...
January 20, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28182042/biomarker-response-to-contrast-administration-in-diabetic-and-nondiabetic-patients-following-coronary-angiography
#4
V L Ashalatha, A R Bitla, V S Kumar, D Rajasekhar, M M Suchitra, A Y Lakshmi, P V L N S Rao
Neutrophil gelatinase-associated lipocalin (NGAL) and cystatin C represent early renal injury markers for contrast-induced nephropathy (CIN). Baseline parameters such as type and quantity of contrast, patient preparation, renal function status, and diabetes mellitus (DM) are known to affect the response of the kidney to contrast-induced injury. This study was taken up to know the biomarker response to contrast administration in 58 diabetic and 59 nondiabetic male patients with same baseline parameters and baseline serum creatinine <1...
January 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28181941/sodium-bicarbonate-versus-sodium-chloride-for-preventing-contrast-associated-acute-kidney-injury-in-critically-ill-patients-a-randomized-controlled-trial
#5
Xavier Valette, Isabelle Desmeulles, Benoit Savary, Romain Masson, Amélie Seguin, Bertrand Sauneuf, Jennifer Brunet, Pierre Verrier, Véronique Pottier, Marie Orabona, Désiré Samba, Gérald Viquesnel, Mathilde Lermuzeaux, Pascal Hazera, Jean-Jacques Dutheil, Jean-Luc Hanouz, Jean-Jacques Parienti, Damien du Cheyron
OBJECTIVES: To test whether hydration with bicarbonate rather than isotonic sodium chloride reduces the risk of contrast-associated acute kidney injury in critically ill patients. DESIGN: Prospective, double-blind, multicenter, randomized controlled study. SETTING: Three French ICUs. PATIENTS: Critically ill patients with stable renal function (n = 307) who received intravascular contrast media. INTERVENTIONS: Hydration with 0...
February 7, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28181544/mono-energy-coronary-angiography-with-a-compact-synchrotron-source
#6
Elena Eggl, Korbinian Mechlem, Eva Braig, Stephanie Kulpe, Martin Dierolf, Benedikt Günther, Klaus Achterhold, Julia Herzen, Bernhard Gleich, Ernst Rummeny, Peter B Noёl, Franz Pfeiffer, Daniela Muenzel
X-ray coronary angiography is an invaluable tool for the diagnosis of coronary artery disease. However, the use of iodine-based contrast media can be contraindicated for patients who present with chronic renal insufficiency or with severe iodine allergy. These patients could benefit from a reduced contrast agent concentration, possibly achieved through application of a mono-energetic x-ray beam. While large-scale synchrotrons are impractical for daily clinical use, the technology of compact synchrotron sources strongly advanced during the last decade...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28178159/adma-predicts-major-adverse-renal-events-in-patients-with-mild-renal-impairment-and-or-diabetes-mellitus-undergoing-coronary-angiography
#7
Fabian Heunisch, Lyubov Chaykovska, Gina von Einem, Markus Alter, Thomas Dschietzig, Axel Kretschmer, Karl-Heinz Kellner, Berthold Hocher
Asymmetric dimethylarginine (ADMA) is a competitive inhibitor of the nitric oxide (NO)-synthase and a biomarker of endothelial dysfunction (ED). ED plays an important role in the pathogenesis of contrast-induced nephropathy (CIN). The aim of our study was to evaluate serum ADMA concentration as a biomarker of an acute renal damage during the follow-up of 90 days after contrast medium (CM) application.Blood samples were obtained from 330 consecutive patients with diabetes mellitus or mild renal impairment immediately before, 24 and 48 hours after the CM application for coronary angiography...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28173713/off-hour-primary-percutaneous-coronary-angioplasty-does-not-affect-contrast-induced-nephropathy-in-patients-with-st-segment-elevation-myocardial-infarction
#8
Yalcin Velibey, Ozan Tanik, Ahmet Oz, Tolga Sinan Guvenc, Koray Kalenderoglu, Ayca Gumusdag, Ozge Guzelburc, Ahmet Ilker Tekkesin, Ahmet Okan Uzun, Ahmet Taha Alper, Mehmet Eren
We evaluated whether primary percutaneous coronary intervention (pPCI) during off-hours is related to an increased incidence of contrast-induced nephropathy (CIN). We retrospectively analyzed the incidence of CIN mortality among 2552 patients with consecutive ST-segment elevation myocardial infarction treated with pPCI during regular hours (weekdays 8:00 am to 5:00 pm) and off-hours (weekdays 5:01 pm to 7:59 am, weekends and holidays). Patients in the off-hour group were more frequently admitted with acute heart failure symptoms (16...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28159819/preprocedural-prediction-model-for-contrast-induced-nephropathy-patients
#9
Wen-Jun Yin, Yi-Hu Yi, Xiao-Feng Guan, Ling-Yun Zhou, Jiang-Lin Wang, Dai-Yang Li, Xiao-Cong Zuo
BACKGROUND: Several models have been developed for prediction of contrast-induced nephropathy (CIN); however, they only contain patients receiving intra-arterial contrast media for coronary angiographic procedures, which represent a small proportion of all contrast procedures. In addition, most of them evaluate radiological interventional procedure-related variables. So it is necessary for us to develop a model for prediction of CIN before radiological procedures among patients administered contrast media...
February 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28154267/contrast-induced-hyperemia-as-an-alternative-to-drug-induced-hyperemia-in-the-evaluation-of-the-fractional-flow-reserve-in-coronary-lesions
#10
Nobuo Shiode, Tomokazu Okimoto, Hiromichi Tamekiyo, Tomoharu Kawase, Kenichi Yamane, Yuzo Kagawa, Yuto Fujii, Yusuke Ueda, Naoya Hironobe, Yasuko Kato, Yasuhiko Hayashi
Objective Measuring the fractional flow reserve (FFR) requires the induction of coronary hyperemia, usually with adenosine, adenosine triphosphate (ATP), or papaverine. However, adenosine can induce rhythmic complications, and intracoronary boluses of papaverine that prolong the QT interval can cause ventricular tachycardia. Injection of contrast media, which is routinely performed to validate the FFR guidewire placement, also induces hyperemia and may be an alternative method of measuring the FFR. We evaluated the diagnostic accuracy of the FFR after contrast hyperemia (FFRcont) compared to FFR evaluated after intracoronary papaverine (FFRpp)...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28152259/four-dimensional-phase-contrast-vastly-undersampled-isotropic-projection-reconstruction-4d-pc-vipr-mr-evaluation-of-the-renal-arteries-in-transplant-recipients-preliminary-results
#11
Daisuke Motoyama, Yasuo Ishii, Yasuo Takehara, Masataka Sugiyama, Wang Yang, Hatsuko Nasu, Takasuke Ushio, Yuko Hirose, Naoki Ohishi, Tetsuya Wakayama, Hiroyuki Kabasawa, Kevin Johnson, Oliver Wieben, Harumi Sakahara, Seiichiro Ozono
PURPOSE: To assess the performance of four-dimensional phase-contrast vastly undersampled isotropic projection reconstruction (4D PC-VIPR) at 3.0T in depicting intrarenal arteries compared with computed tomography angiography (CTA), and its correlation with arterial flowmetry in comparison with Doppler ultrasonography (DUS). MATERIALS AND METHODS: In our prospective single-arm study, subjects were 25 patients who underwent renal transplant-related surgery at our hospital between July 2011 and June 2015...
February 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28151503/-contrast-induced-acute-kidney-injury-in-cardiology
#12
Eugenio Genovesi, Mattia Romanello, Raffaele De Caterina
The intravascular administration of contrast media is an important tool in cardiovascular imaging, especially in percutaneous coronary interventions (PCI). Owing to the widespread use of these procedures, contrast-induced acute kidney injury (CI-AKI) has become one of the most common types of acute renal failures. CI-AKI is mainly mediated by mechanisms of oxidative damage, and its onset is associated with prolonged hospitalization and significant morbidity and mortality. Preexisting chronic kidney disease, diabetes, age, heart failure, and characteristics related to the procedure (primary or elective PCI, type and amount of contrast medium) are the most important risk factors for the development of post-PCI CI-AKI...
December 2016: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28144896/temporal-evolution-of-the-signal-intensity-of-hyper-acute-ischemic-lesions-in-a-canine-stroke-model-influence-of-hyperintense-acute-reperfusion-marker
#13
Xiao-Quan Xu, Chen-Jiang Wu, Qing-Quan Zu, Shan-Shan Lu, Xing-Long Liu, Qian-Qian Gao, Sheng Liu, Hai-Bin Shi
BACKGROUND: To assess the influence of the hyperintense acute reperfusion marker (HARM) on the relative signal intensity (rSI) and apparent diffusion coefficient (ADC) of hyper-acute ischemic lesions in a canine stroke model. METHODS: Middle cerebral artery occlusion models were established using autologous clot embolization. Diffusion-weighted (DW) and fluid-attenuated inversion recovery (FLAIR) imaging was performed at 1, 2, 3, 4.5 and 6 h after embolization...
January 31, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28144691/-erratum-to-retention-of-contrast-media-in-the-history-of-radiology-sequelae-of-the-former-thorotrast-use-and-new-challenges
#14
G van Kaick, S Delorme
No abstract text is available yet for this article.
February 2017: Der Radiologe
https://www.readbyqxmd.com/read/28142887/the-effect-of-increasing-operator-experience-on-procedure-related-characteristics-in-patients-undergoing-carotid-artery-stenting
#15
George Kouvelos, Andreas Koutsoumpelis, Eleni Arnaoutoglou, Christos Nassis, Vasilios Bouris, Michalis Peroulis, George Papadopoulos, Miltiadis Matsagkas
Objectives To evaluate the efficacy and safety of carotid artery stenting for the treatment of severe carotid artery disease in our department and to investigate the effect of increasing operator experience on perioperative and procedure-related characteristics. Methods From January 2007 to February 2015 200 patients underwent 207 endovascular procedures for carotid artery stenosis. Of all, 113 arteries (56.5%) were symptomatic. Significant changes across time were calculated with the use of Change Point analysis using bootstrap and mean squared error estimates...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28138128/understanding-and-preventing-contrast-induced-acute-kidney-injury
#16
REVIEW
Michael Fähling, Erdmann Seeliger, Andreas Patzak, Pontus B Persson
Contrast-induced acute kidney injury (CIAKI) occurs in up to 30% of patients who receive iodinated contrast media and is generally considered to be the third most common cause of hospital-acquired AKI. Accurate assessment of the incidence of CIAKI is obscured, however, by the use of various definitions for diagnosis, the different populations studied and the prophylactic measures put in place. A deeper understanding of the mechanisms that underlie CIAKI is required to enable reliable risk assessment for individual patients, as their medical histories will determine the specific pathways by which contrast media administration might lead to kidney damage...
March 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28131489/risk-of-acute-kidney-injury-after-intravenous-contrast-media-administration
#17
Jeremiah S Hinson, Michael R Ehmann, Derek M Fine, Elliot K Fishman, Matthew F Toerper, Richard E Rothman, Eili Y Klein
STUDY OBJECTIVE: The study objective was to determine whether intravenous contrast administration for computed tomography (CT) is independently associated with increased risk for acute kidney injury and adverse clinical outcomes. METHODS: This single-center retrospective cohort analysis was performed in a large, urban, academic emergency department with an average census of 62,179 visits per year; 17,934 ED visits for patients who underwent contrast-enhanced, unenhanced, or no CT during a 5-year period (2009 to 2014) were included...
January 19, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28123972/blood-pool-contrast-agents-for-venous-magnetic-resonance-imaging
#18
REVIEW
Irai S Oliveira, Sandeep S Hedgire, Weier Li, Suvranu Ganguli, Anand M Prabhakar
Imaging of the venous system plays a vital role in the diagnosis and management of a wide range of clinically significant disorders. There have been great advances in venous imaging techniques, culminating in the use of magnetic resonance venography (MRV). Although MRV has distinct advantages in anatomic and quantitative cross sectional imaging without ionizing radiation, there are well-known challenges in acquisition timing and contrast administration in patients with renal impairment. The latest advancement involves the addition of new contrast media agents, which have emerged as valuable alternatives in these difficult scenarios...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28121732/icnirp-statement-on-diagnostic-devices-using-non-ionizing-radiation-existing-regulations-and-potential-health-risks
#19
(no author information available yet)
Use of non-ionizing radiation (NIR) for diagnostic purposes allows non-invasive assessment of the structure and function of the human body and is widely employed in medical care. ICNIRP has published previous statements about the protection of patients during medical magnetic resonance imaging (MRI), but diagnostic methods using other forms of NIR have not been considered. This statement reviews the range of diagnostic NIR devices currently used in clinical settings; documents the relevant regulations and policies covering patients and health care workers; reviews the evidence around potential health risks to patients and health care workers exposed to diagnostic NIR; and identifies situations of high NIR exposure from diagnostic devices in which patients or health care workers might not be adequately protected by current regulations...
2017: Health Physics
https://www.readbyqxmd.com/read/28120752/-the-new-biomaterials-of-embolization-the-shift-to-degradable
#20
Alexandre Laurent, Laurence Moine
During the last decade, the interest of degradable embolics has considerably grown as alternatives for the currently-used permanent embolics: no permanent foreign body, recanalisation for repeat embolization, complete drug delivery in chemoembolization. Their design is not trivial since a lot of requirements need to be satisfied. The degradable embolics should be easily suspended in physiological solutions and contrast media, injectable in catheters with small internal lumen and they have to recover their size and shape after injection, as for any embolic...
January 2017: Médecine Sciences: M/S
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