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https://www.readbyqxmd.com/read/28943598/the-piezo-actuator-driven-pulsed-water-jet-system-for-minimizing-renal-damage-after-off-clamp-laparoscopic-partial-nephrectomy
#1
Yoshihiro Kamiyama, Shinichi Yamashita, Atsuhiro Nakagawa, Shinji Fujii, Koji Mitsuzuka, Yasuhiro Kaiho, Akihiro Ito, Takaaki Abe, Teiji Tominaga, Yoichi Arai
In the setting of partial nephrectomy (PN) for renal cell carcinoma, postoperative renal dysfunction might be caused by surgical procedure. The aim of this study was to clarify the technical safety and renal damage after off-clamp laparoscopic PN (LPN) with a piezo actuator-driven pulsed water jet (ADPJ) system. Eight swine underwent off-clamp LPN with this surgical device, while off-clamp open PN was also performed with radio knife or soft coagulation. The length of the removed kidney was 40 mm, and the renal parenchyma was dissected until the renal calyx became clearly visible...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28941604/current-risk-of-contrast-induced-acute-kidney-injury-after-coronary-angiography-and-intervention-a-reappraisal-of-the-literature
#2
Lorenzo Azzalini, Luciano Candilio, Peter A McCullough, Antonio Colombo
Contrast-induced acute kidney injury (CI-AKI) is the acute impairment of renal function further to the intravascular administration of iodinated contrast media, and occurs most frequently after coronary angiography, percutaneous coronary intervention, and contrast-enhanced computed tomography. CI-AKI has been associated with the development of acute renal failure, worsening of chronic kidney disease, requirement for dialysis, prolonged hospital stay, and higher mortality rates and health care costs. Recently, a number of studies suggested that contrast media exposure might not be the causative agent in the occurrence of acute kidney injury, particularly in stable patients who receive small to moderate amounts of contrast media...
October 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28939956/radial-access-protects-from-contrast-media-induced-nephropathy-after-cardiac-catheterization-procedures
#3
Thorsten Feldkamp, Maya Luedemann, Martina E Spehlmann, Sandra Freitag-Wolf, Julia Gaensbacher, Kevin Schulte, Amer Bajrovic, Dieter Hinzmann, Hans-Joerg Hippe, Ulrich Kunzendorf, Norbert Frey, Mark Luedde
OBJECTIVES: To assess, whether cardiac catheterization via radial access prevents contrast-induced nephropathy. BACKGROUND: Contrast-induced nephropathy (CIN) is a major clinical problem which accounts for more than 10% of acute kidney injury cases in hospitalized patients. Protective measures such as the infusion of isotonic saline solution or acetylcysteine have not consistently been proven to prevent acute kidney injury (AKI). However, there is growing evidence that radial access for coronary angiography and coronary intervention is associated with a lower incidence of AKI compared to femoral access...
September 22, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28929640/rho-kinase-inhibitor-fasudil-attenuates-contrast-induced-acute-kidney-injury
#4
Yiming Wang, Hao Zhang, Zhijian Yang, Dengshun Miao, Dingguo Zhang
In this study, we tested the hypothesis that fasudil, a Rho kinase inhibitor, would protect against contrast-induced acute kidney injury (CI-AKI) in a mouse model and attempted to elucidate the mechanism involved. Mice subjected to unilateral ligation of the left anterior renal pedicle were divided into four groups: (1) control group, (2) CI-AKI induced by contrast media (CM group), (3) CI-AKI plus low-dose fasudil (LD group) and (4) CI-AKI plus high-dose fasudil (HD group). Animals from groups 2-4 received iodixanol (4...
September 19, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28918942/withdrawn-relation-of-mean-platelet-volume-to-lymphocyte-ratio-and-contrast-induced-acute-kidney-injury-in-patients-with-acute-coronary-syndrome-undergoing-percutaneous-coronary-intervention
#5
Alparslan Kurtul, Selcuk Ozturk
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
August 8, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28916603/phase-2a-clinical-trial-of-mitochondrial-protection-elamipretide-during-stent-revascularization-in-patients-with-atherosclerotic-renal-artery-stenosis
#6
Ahmed Saad, Sandra M S Herrmann, Alfonso Eirin, Christopher M Ferguson, James F Glockner, Haraldur Bjarnason, Michael A McKusick, Sanjay Misra, Lilach O Lerman, Stephen C Textor
BACKGROUND: Atherosclerotic renal artery stenosis reduces renal blood flow (RBF) and amplifies stenotic kidney hypoxia. Revascularization with percutaneous transluminal renal angioplasty (PTRA) and stenting often fails to recover renal function, possibly because of ischemia/reperfusion injury developing after PTRA. Elamipretide is a mitochondrial-targeted peptide that binds to cardiolipin and stabilizes mitochondrial function. We tested the hypothesis that elamipretide plus PTRA would improve renal function, oxygenation, and RBF in patients with atherosclerotic renal artery stenosis undergoing PTRA...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28914202/statins-and-contrast-induced-nephropathy-a-systematic-review-and-meta-analysis
#7
Alexandros Briasoulis, Mohan Pala, Tesfaye Telila, Obsinet Merid, Emmanuel Akintoye, Georgia Vogiatzi, Evangelos Oikonomou, Dimitris Tousoulis
Contrast-induced nephropathy (CIN) is a type of acute kidney injury associated with intravascular administration of iodinated contrast, usually reversible. Contrast agents are an essential component of invasive and noninvasive coronary angiography. These agents have been modified over time to enhance patient safety and tolerability, but adverse reactions still occur. CIN has been variably defined, as a rise in serum creatinine of 0.5 mg/dl, or a 25% increase in serum creatinine above baseline within 24-72 hours after the procedure...
September 13, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28904432/impact-of-steroids-on-the-inflammatory-response-after-ischemic-acute-kidney-injury-in-rats
#8
J Fontana, A Vogt, A Hohenstein, U Vettermann, E Doroshenko, E Lammer, B A Yard, S Hoeger
Inflammation plays a crucial role in acute kidney injury (AKI). The current study was designed to analyze the influence of prednisolone treatment on the inflammatory reaction during the first 96 h after AKI induction in a rat model. AKI was induced by unilateral clipping of the renal vessels. The treatment group received prednisolone 5 mg/kg s.c. daily. Infiltration rates of macrophages, leukocytes, and T-cells (24, 96 h) as well as plasma concentrations of the inflammatory markers intercellular adhesion molecule, interleukin-1 beta (IL-1β), IL-18, IL-6, and tumor necrosis factor-alpha (0, 6, 24, 96 h) were determined by fluorescence-activated cell sorting (FACS) analysis only...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28903945/complement-c5a-receptors-c5l2-and-c5ar-in-renal-fibrosis
#9
Ina V Martin, Annika Bohner, Peter Boor, Erdenechimeg Shagdarsuren, Ute Raffetseder, Frank Lammert, Jürgen Floege, Tammo Ostendorf, Susanne N Weber
Complement factor C5a has two known receptors, C5aR mediating pro-inflammatory effects and C5L2, a potential C5a scavenger. We previously identified C5a/C5aR signaling as a potent profibrotic pathway in the kidney. Here we tested for the first time the role of C5L2 in renal fibrosis. In unilateral ureteral obstruction (UUO)-induced kidney fibrosis, the expression of C5aR and C5L2 increased similarly and gradually as fibrosis progressed and was particularly prominent in injured dilated tubules. Genetic deficiency of either C5aR or C5L2 significantly reduced UUO-induced tubular injury...
September 13, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28901491/mir%C3%A2-21-attenuates-contrast%C3%A2-induced-renal-cell-apoptosis-by-targeting-pdcd4
#10
Kun Wang, Wei-Jie Bei, Yuan-Hui Liu, Hua-Long Li, Shi-Qun Chen, Kai-Yang Lin, Zhi-Ling Zhou, Ji-Yan Chen, Yong Liu, Ning Tan
Contrast medium (CM) is widely used in cardiac catheterization; however, it may induce acute kidney injury or renal failure, although the underlying mechanism remains to be elucidated. MicroRNA‑21 (miR‑21) is involved in renal disease and has been indicated to regulate cellular apoptosis and fibrosis, although its role in CM‑induced renal cell injury is unknown. The present study examined the expression and potential targets of miR‑21 in human renal proximal tubular epithelial (HK‑2) cells following CM treatment...
September 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28901193/erk-and-p38-upregulation-versus-bcl-6-downregulation-in-rat-kidney-epithelial-cells-exposed-to-prolonged-hypoxia
#11
Fengbao Luo, Jian Shi, Qianqian Shi, Xiaozhou He, Ying Xia
Hypoxia is a common cause of kidney injury and a major issue in kidney transplantation. Mitogen-activated protein kinases (MAPKs) are involved in the cellular response to hypoxia, but the precise roles of MAPKs in renal cell reactions to hypoxic stress are not well known yet. This work was conducted to investigate the regulation of extracellular signal-regulated kinase-1 and -2 (ERK1/2) and p38 and their signaling-relevant molecules in kidney epithelial cells exposed to prolonged hypoxia. Rat kidney epithelial cells Normal Rat Kidney (NRK)-52E were exposed to hypoxic conditions (1% O2) for 24 to 72 h...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28891160/co2-angiography-colorless-odorless-but-definitely-not-useless
#12
EDITORIAL
Robert D Safian
Contemporary approaches to minimize the risk of acute kidney injury from radiographic contrast (AKI-RC) rely on preferential use of low- or non-ionic contrast; pre-hydration; and limiting contrast volume. This study utilized a meta-analysis of 677 patients to compare the risk of AKI-RC after CO2 peripheral angiography versus iodinated contrast (4.3% vs. 11.1%, odds ratio [OR] 0.465, P = 0.048). There was no difference in AKI-RC in patients with CKD. This study has many limitations. CO2 angiography is an important technique; proper understanding of its strengths and limitations is essential...
September 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28885936/vancomycin-vs-vancomycin-piperacillin-tazobactam-associated-acute-kidney-injury-in-noncritically-ill-patients-at-a-tertiary-care-military-treatment-facility
#13
Caleb W Anderson, Kathy S Cazares, Michael B Lustik, Shivam M Patel, Troy M Denunzio
BACKGROUND: Broad-spectrum antibiotics are often used as initial empiric therapy in patients at risk for infections by multidrug-resistant organisms. Emerging literature and anecdotal reports within Tripler Army Medical Center indicate an increased incidence of vancomycin-associated acute kidney injury when used in combination with piperacillin-tazobactam. This is a retrospective, single-center study comparing the incidence of acute kidney injury in noncritically ill patients receiving either vancomycin or vancomycin in combination with piperacillin-tazobactam in a 206-bed tertiary care military training facility...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28876404/contrast-induced-acute-kidney-injury-the-importance-of-diagnostic-criteria-for-establishing-prevalence-and-prognosis-in-the-intensive-care-unit
#14
Edmilson Leal Bastos de Moura, Fábio Ferreira Amorim, William Huang, Marcelo de Oliveira Maia
Objective: To establish whether there is superiority between contrast-induced acute kidney injury and contrast-induced nephropathy criteria as predictors of unfavorable clinical outcomes. Methods: Retrospective study carried out in a tertiary hospital with 157 patients undergoing radiocontrast infusion for propaedeutic purposes. Results: One hundred forty patients fulfilled the inclusion criteria: patients who met the criteria for contrast-induced acute kidney injury (59) also met the criteria for contrast-induced nephropathy (76), 44...
September 4, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28874655/serum-neutrophil-gelatinase-associated-lipocalin-and-urinary-kidney-injury-molecule-1-as-potential-biomarkers-of-subclinical-nephrotoxicity-after-gadolinium-based-and-iodinated-based-contrast-media-exposure-in-pediatric-patients-with-normal-kidney-function
#15
Brankica Spasojević-Dimitrijeva, Jelena Kotur-Stevuljević, Milan Đukić, Dušan Paripović, Gordana Miloševski-Lomić, Vesna Spasojević-Kalimanovska, Polina Pavićević, Jadranka Mitrović, Mirjana Kostić
BACKGROUND New renal biomarkers such as neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1 (KIM-1) show promise in early diagnosis of contrast media induced acute kidney injury (CI-AKI). The purpose of our study was to compare the subclinical nephrotoxicity (a condition without changes in standard renal biomarkers) of gadolinium-based contrast media (Gd-DTPA, gadopentetate dimeglumine) and iodinated-based contrast media (iopromide) in pediatric patients with normal kidney function...
September 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28870002/use-of-the-renalguard-system-to-prevent-contrast-induced-aki-a-meta-analysis
#16
Stephanie Mattathil, Saad Ghumman, Jonathan Weinerman, Anand Prasad
BACKGROUND: Contrast-induced kidney injury (CI-AKI) following cardiovascular interventions results in increased morbidity and mortality. RenalGuard (RG) is a novel, closed loop system which balances volume administration with forced diuresis to maintain a high urine output. We performed a meta-analysis of the existing data comparing use of RG to conventional volume expansion. METHODS: Ten studies were found eligible, of which four were randomized controlled trials...
September 4, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28869717/seasonal-pattern-of-incidence-and-outcome-of-acute-kidney-injury-a-national-study-of-welsh-aki-electronic-alerts
#17
Dafydd Phillips, Oliver Young, Jennifer Holmes, Lowri A Allen, Gethin Roberts, John Geen, John D Williams, Aled O Phillips
OBJECTIVES: To identify any seasonal variation in the occurrence of, and outcome following Acute Kidney Injury. METHODS: The study utilised the biochemistry based AKI electronic (e)-alert system established across the Welsh National Health Service to collect data on all AKI episodes to identify changes in incidence and outcome over one calendar year (1st October 2015 and the 30th September 2016). RESULTS: There were total of 48 457 incident AKI alerts...
September 4, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28860786/risk-factors-and-early-outcomes-of-acute-renal-injury-after-thoracic-aortic-endograft-repair-for-type-b-aortic-dissection
#18
Songyuan Luo, Huanyu Ding, Jianfang Luo, Wei Li, Bing Ning, Yuan Liu, Wenhui Huang, Ling Xue, Ruixin Fan, Jiyan Chen
BACKGROUND: Thoracic endovascular aortic repair (TEVAR) has become an emerging treatment modality for acute type B aortic dissection (TBAD) patients in recent years. The risk factors and impacts of acute kidney injury (AKI) after percutaneous TEVAR, however, have not been widely established. METHODS: We retrospectively studied the clinical records of 305 consecutive patients who admitted to our institution and had TEVAR for TBAD between December 2009 and June 2013...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28856420/iodine-based-contrast-media-multiple-myeloma-and-monoclonal-gammopathies-literature-review-and-esur-contrast-media-safety-committee-guidelines
#19
Fulvio Stacul, Michele Bertolotto, Henrik S Thomsen, Gabriele Pozzato, Donatella Ugolini, Marie-France Bellin, Georg Bongartz, Olivier Clement, Gertraud Heinz-Peer, Aart van der Molen, Peter Reimer, Judith A W Webb
OBJECTIVES: Many radiologists and clinicians still consider multiple myeloma (MM) and monoclonal gammopathies (MG) a contraindication for using iodine-based contrast media. The ESUR Contrast Media Safety Committee performed a systematic review of the incidence of post-contrast acute kidney injury (PC-AKI) in these patients. METHODS: A systematic search in Medline and Scopus databases was performed for renal function deterioration studies in patients with MM or MG following administration of iodine-based contrast media...
August 30, 2017: European Radiology
https://www.readbyqxmd.com/read/28854431/involvement-of-s100a8-a9-tlr4-nlrp3-inflammasome-pathway-in-contrast-induced-acute-kidney-injury
#20
Xuexian Tan, Xiaohe Zheng, Zena Huang, Jiaqiong Lin, Chuli Xie, Yan Lin
BACKGROUND: Contrast-induced acute kidney injury (CIAKI) is a common cause of hospital-acquired acute kidney injury (AKI). S100A8/A9-TLR4-NLRP3 inflammasome pathway triggers inflammation, apoptosis and tissue injury in several AKI models. Nevertheless, the underlying mechanism of S100A8/A9-TLR4-NLRP3 inflammasome pathway in CIKAI is not clear. We aimed to investigate the possible role of S100A8/A9-TLR4-NLRP3 inflammasome in the pathophysiology of CIAKI. METHODS: We treated male rats and NRK-52E cells by iopromide to establish in vivo and in vitro models of CIAKI...
August 30, 2017: Cellular Physiology and Biochemistry
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