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Carlo Barbieri, Manuel Molina, Pedro Ponce, Monika Tothova, Isabella Cattinelli, Jasmine Ion Titapiccolo, Flavio Mari, Claudia Amato, Frank Leipold, Wolfgang Wehmeyer, Stefano Stuard, Andrea Stopper, Bernard Canaud
Managing anemia in hemodialysis patients can be challenging because of competing therapeutic targets and individual variability. Because therapy recommendations provided by a decision support system can benefit both patients and doctors, we evaluated the impact of an artificial intelligence decision support system, the Anemia Control Model (ACM), on anemia outcomes. Based on patient profiles, the ACM was built to recommend suitable erythropoietic-stimulating agent doses. Our retrospective study consisted of a 12-month control phase (standard anemia care), followed by a 12-month observation phase (ACM-guided care) encompassing 752 patients undergoing hemodialysis therapy in 3 NephroCare clinics located in separate countries...
August 2016: Kidney International
M J E Dekker, D Marcelli, B Canaud, C J A M Konings, K M Leunissen, N W Levin, P Carioni, V Maheshwari, J G Raimann, F M van der Sande, L A Usvyat, P Kotanko, J P Kooman
BACKGROUND/OBJECTIVES: Hyponatremia is a risk factor for mortality in hemodialysis (HD) patients. It is not well known to which extent the comorbidities, malnutrition, fluid status imbalance and inflammation are related to hyponatremia and affect outcomes. SUBJECTS/METHODS: We studied 8883 patients from the European subset of the international MONitoring Dialysis Outcomes initiative. Nutritional and fluid statuses were assessed by bioimpedance spectroscopy. Fluid depletion was defined as overhydration⩽-1...
July 2016: European Journal of Clinical Nutrition
Carlo Barbieri, Elena Bolzoni, Flavio Mari, Isabella Cattinelli, Francesco Bellocchio, José D Martin, Claudia Amato, Andrea Stopper, Emanuele Gatti, Iain C Macdougall, Stefano Stuard, Bernard Canaud
Anemia management, based on erythropoiesis stimulating agents (ESA) and iron supplementation, has become an increasingly challenging problem in hemodialysis patients. Maintaining hemodialysis patients within narrow hemoglobin targets, preventing cycling outside target, and reducing ESA dosing to prevent adverse outcomes requires considerable attention from caregivers. Anticipation of the long-term response (i.e. at 3 months) to the ESA/iron therapy would be of fundamental importance for planning a successful treatment strategy...
2016: PloS One
J G Raimann, B Canaud, M Etter, J P Kooman, N W Levin, D Marcelli, C Marelli, A Power, N Duncan, F M van der Sande, P Carioni, S Thijssen, X Xu, L A Usvyat, Y Wang, P Kotanko
A recent study from the United Kingdom indicates an association between pre hemodialysis (HD) serum sodium (SNa(+)) and systolic and diastolic blood pressure (SBP and DBP) in chronic HD patients. We extend this analysis to an international cohort of incident HD patients. The Monitoring Dialysis Outcomes initiative encompasses patients from 41 countries. Over 2 years monthly pre-HD SNa(+) levels were used as predictors of pre-HD SBP and DBP in a linear mixed model (LMM) adjusted for age, gender, interdialytic weight gain, diabetes, serum albumin and calcium...
July 2016: Journal of Human Hypertension
Daniele Marcelli, Peter Wabel, Sebastian Wieskotten, Annalisa Ciotola, Aileen Grassmann, Attilio Di Benedetto, Bernard Canaud
This article aims to provide an overview of the different nutritional markers and the available methodologies for the physical assessment of nutrition status in hemodialysis patients, with special emphasis on early detection of protein energy wasting (PEW). Nutrition status assessment is made on the basis of anamnesis, physical examination, evaluation of nutrient intake, and on a selection of various screening/diagnostic methodologies. These methodologies can be subjective, e.g. the Subjective Global Assessment score (SGA), or objective in nature (e...
October 2015: Journal of Nephrology
G Canaud
No abstract text is available yet for this article.
July 2015: La Revue de Médecine Interne
G Canaud, C Legendre, F Terzi
No abstract text is available yet for this article.
March 2015: Lupus
Krzysztof Kiryluk, Yifu Li, Francesco Scolari, Simone Sanna-Cherchi, Murim Choi, Miguel Verbitsky, David Fasel, Sneh Lata, Sindhuri Prakash, Samantha Shapiro, Clara Fischman, Holly J Snyder, Gerald Appel, Claudia Izzi, Battista Fabio Viola, Nadia Dallera, Lucia Del Vecchio, Cristina Barlassina, Erika Salvi, Francesca Eleonora Bertinetto, Antonio Amoroso, Silvana Savoldi, Marcella Rocchietti, Alessandro Amore, Licia Peruzzi, Rosanna Coppo, Maurizio Salvadori, Pietro Ravani, Riccardo Magistroni, Gian Marco Ghiggeri, Gianluca Caridi, Monica Bodria, Francesca Lugani, Landino Allegri, Marco Delsante, Mariarosa Maiorana, Andrea Magnano, Giovanni Frasca, Emanuela Boer, Giuliano Boscutti, Claudio Ponticelli, Renzo Mignani, Carmelita Marcantoni, Domenico Di Landro, Domenico Santoro, Antonello Pani, Rosaria Polci, Sandro Feriozzi, Silvana Chicca, Marco Galliani, Maddalena Gigante, Loreto Gesualdo, Pasquale Zamboli, Giovanni Giorgio Battaglia, Maurizio Garozzo, Dita Maixnerová, Vladimir Tesar, Frank Eitner, Thomas Rauen, Jürgen Floege, Tibor Kovacs, Judit Nagy, Krzysztof Mucha, Leszek Pączek, Marcin Zaniew, Małgorzata Mizerska-Wasiak, Maria Roszkowska-Blaim, Krzysztof Pawlaczyk, Daniel Gale, Jonathan Barratt, Lise Thibaudin, Francois Berthoux, Guillaume Canaud, Anne Boland, Marie Metzger, Ulf Panzer, Hitoshi Suzuki, Shin Goto, Ichiei Narita, Yasar Caliskan, Jingyuan Xie, Ping Hou, Nan Chen, Hong Zhang, Robert J Wyatt, Jan Novak, Bruce A Julian, John Feehally, Benedicte Stengel, Daniele Cusi, Richard P Lifton, Ali G Gharavi
We performed a genome-wide association study (GWAS) of IgA nephropathy (IgAN), the most common form of glomerulonephritis, with discovery and follow-up in 20,612 individuals of European and East Asian ancestry. We identified six new genome-wide significant associations, four in ITGAM-ITGAX, VAV3 and CARD9 and two new independent signals at HLA-DQB1 and DEFA. We replicated the nine previously reported signals, including known SNPs in the HLA-DQB1 and DEFA loci. The cumulative burden of risk alleles is strongly associated with age at disease onset...
November 2014: Nature Genetics
Daniele Marcelli, Caecilia Scholz, Pedro Ponce, Tânia Sousa, Pascal Kopperschmidt, Aileen Grassmann, Bruno Pinto, Bernard Canaud
Hemodiafiltration (HDF) with 20-22 L of substitution fluid is increasingly recognized as associated with significant benefits regarding patient outcome. However, some doubt exists as to whether these high volumes can be achieved in routine clinical practice. A total of 4176 sessions with 366 patients on postdilution HDF were analyzed in this 1-month observational cohort study with prospective data collection. All dialysis machines were equipped with AutoSub plus signal analysis software that automatically and continuously adapts the substitution fluid flow according to the blood flow, blood viscosity, and dialyzer characteristics...
February 2015: Artificial Organs
Guillaume Canaud, Frank Bienaimé, Fanny Tabarin, Guillaume Bataillon, Danielle Seilhean, Laure-Hélène Noël, Marie-Agnès Dragon-Durey, Renaud Snanoudj, Gérard Friedlander, Lise Halbwachs-Mecarelli, Christophe Legendre, Fabiola Terzi
BACKGROUND: Although thrombosis is considered the cardinal feature of the antiphospholipid syndrome, chronic vascular lesions are common, particularly in patients with life-threatening complications. In patients who require transplantation, vascular lesions often recur. The molecular pathways involved in the vasculopathy of the antiphospholipid syndrome are unknown, and adequate therapies are lacking. METHODS: We used double immunostaining to evaluate pathway activation in the mammalian target of rapamycin complex (mTORC) and the nature of cell proliferation in the vessels of patients with primary or secondary antiphospholipid syndrome nephropathy...
July 24, 2014: New England Journal of Medicine
J Brunkwall, P Kasprzak, E Verhoeven, R Heijmen, P Taylor, P Alric, L Canaud, M Janotta, D Raithel, W Malina, Ti Resch, H-H Eckstein, S Ockert, T Larzon, F Carlsson, H Schumacher, S Classen, P Schaub, J Lammer, L Lönn, R E Clough, V Rampoldi, S Trimarchi, J-N Fabiani, D Böckler, D Kotelis, D Böckler, D Kotelis, H von Tenng-Kobligk, N Mangialardi, S Ronchey, G Dialetto, V Matoussevitch
OBJECTIVES: Uncomplicated acute type B aortic dissection (AD) treated conservatively has a 10% 30-day mortality and up to 25% need intervention within 4 years. In complicated AD, stent grafts have been encouraging. The aim of the present prospective randomised trial was to compare best medical treatment (BMT) with BMT and Gore TAG stent graft in patients with uncomplicated AD. The primary endpoint was a combination of incomplete/no false lumen thrombosis, aortic dilatation, or aortic rupture at 1 year...
September 2014: European Journal of Vascular and Endovascular Surgery
G Canaud, N Kamar, D Anglicheau, L Esposito, M Rabant, L-H Noël, C Guilbeau-Frugier, R Sberro-Soussan, A Del Bello, F Martinez, J Zuber, L Rostaing, C Legendre
Thrombotic microangiopathy (TMA) is one of the hallmark vascular lesions of antiphospholipid syndrome nephropathy (APSN). These lesions are at high risk of recurrence after kidney transplantation. The complement pathway is thought to be active in this process. We used eculizumab to treat three consecutive kidney transplant recipients with posttransplant TMA due to APSN recurrence that was resistant to plasmapheresis and explored the complement deposition and apoptotic and vascular cell markers on the sequential transplant biopsies...
August 2013: American Journal of Transplantation
Francesco Locatelli, Bernard Canaud
The need to improve haemodialysis (HD) therapies and to reduce cardiovascular and all-cause mortality frequently encountered by dialysis patients has been recognized and addressed for many years. A number of approaches, including increasing the frequency versus duration of treatment, have been proposed and debated in terms of their clinical efficacy and economic feasibility. Future prescription of dialysis to an expanding end-stage chronic kidney disease (CKD-5D) population needs a re-evaluation of existing practices while maintaining the emphasis on patient well-being both in the short and in the long term...
August 2012: Nephrology, Dialysis, Transplantation
Bernard Canaud
In the mid-1980s, limits and side effects of contemporary hemodialysis were basically due to short treatment time, use of low-flux membranes and employment of acetate-buffered dialysate. These were already associated with a relatively high morbidity and cardiovascular mortality as part of diaysis-related pathology. Based on these considerations, the concept of on-line hemodiafiltration (HDF) was proposed as an innovative solution. By combining diffusive and convective clearances, HDF offered the most efficient modality to clear small and middle-sized uremic toxins...
2011: Contributions to Nephrology
L Caillabet, B Canaud, G Salin, S Mazevet, P Loubeyre
Improving the description of the equation of state (EOS) of deuterium-tritium (DT) has recently been shown to change significantly the gain of an inertial confinement fusion target [S. X. Hu et al., Phys. Rev. Lett. 104, 235003 (2010)]. Here we use an advanced multiphase EOS, based on ab initio calculations, to perform a full optimization of the laser pulse shape with hydrodynamic simulations starting from 19 K in DT ice. The thermonuclear gain is shown to be a robust estimate over possible uncertainties of the EOS...
September 9, 2011: Physical Review Letters
J F E Mann, A de Francisco, G Nassar, B Canaud
BACKGROUND: Frequent dosing and requirements for dose adjustments of erythropoiesis-stimulating agents (ESAs) create significant burdens for healthcare providers and have been associated with hemoglobin (Hb) cycling, hampering maintenance of target Hb levels. We compared the frequency of dose changes in dialysis patients who received methoxy polyethylene glycolepoetin beta; (a continuous erythropoietin receptor activator (C.E.R.A.)) or a shorter-acting ESA. METHODS: Data were analyzed from three Phase III maintenance trials, using almost identical protocols, in dialysis patients treated with C...
July 2011: Clinical Nephrology
Ch Legendre, H Kreis, F Martinez, R Snanoudj, M F Mamzer, R Sberro, L Bererhi, D Anglicheau, J Zuber, A Loupy, E Thervet, N Pallet, A Sartorius, D Bertrand, G Canaud, L H Noël, M Rabant, M O Timsit, A Méjean
The results of our last 5 years activity in kidney transplantation clearly show that it is possible to perform high-risk transplantations with very acceptable results: ECD kidneys, dual transplantation, recipients with DSAs. In depth statistical analysis of these data should allow a clearer definition of the best strategies to use in these situations.
2010: Clinical Transplants
Marion Morena, Laure Patrier, Isabelle Jaussent, Anne-Sophie Bargnoux, Anne-Marie Dupuy, Stéphanie Badiou, Hélène Leray-Moragues, Kada Klouche, Bernard Canaud, Jean-Paul Cristol
Enhanced oxidative stress partly resulting from an over-production of superoxide anion (O(2)(•-)) represents a novel and particular risk factor in chronic kidney disease (CKD) patients. This study was therefore designed to evaluate O(2)(•-) determinants in this population. O(2)(•-) production was evaluated using chemiluminescence method in 136 CKD patients (79M/57F, median age: 69.5 [27.4-94.6]). Renal function (evaluated by the glomerular filtration rate using modification of diet in renal disease (MDRD)), inflammation, lipids, nutritional and bone mineral as well as clinical parameters were evaluated...
June 2011: Free Radical Research
Ronald L Pisoni, Jennifer L Bragg-Gresham, Douglas S Fuller, Hal Morgenstern, Bernard Canaud, Francesco Locatelli, Yun Li, Brenda Gillespie, Robert A Wolfe, Friedrich K Port, Bruce M Robinson
BACKGROUND: Hemodialysis patients with larger hemoglobin level fluctuations have higher mortality rates. We describe facility-level interpatient hemoglobin variability, its relation to patient mortality, and factors associated with facility-level hemoglobin variability or achieving hemoglobin levels of 10.5-12.0 g/dL. Facility-level hemoglobin variability may reflect within-patient hemoglobin variability and facility-level anemia-control practices. STUDY DESIGN: Prospective cohort study...
February 2011: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Philip Kam-Tao Li, Wai Lun Cheung, Sing Leung Lui, Christopher Blagg, Alan Cass, Lai Seong Hooi, Ho Yung Lee, Francesco Locatelli, Tao Wang, Chih-Wei Yang, Bernard Canaud, Yuk Lun Cheng, Hui Lin Choong, Angel L de Francisco, Victor Gura, Kazo Kaizu, Peter G Kerr, Un I Kuok, Chi Bon Leung, Wai-Kei Lo, Madhukar Misra, Cheuk Chun Szeto, Kwok Lung Tong, Kriang Tungsanga, Robert Walker, Andrew Kui-Man Wong, Alex Wai-Yin Yu
No abstract text is available yet for this article.
January 2011: Hemodialysis International
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