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residual renal function

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https://www.readbyqxmd.com/read/28334722/even-a-moderate-fluid-removal-rate-during-individualised-haemodialysis-session-times-is-associated-with-decreased-patient-survival
#1
Charles Chazot, Cyril Vo-Van, Christie Lorriaux, Patrik Deleaval, Brice Mayor, Jean-Marc Hurot, Guillaume Jean
BACKGROUND: Several studies report that fluid removal rate (FRR) above 10-13 mL/h/kg is associated with increased mortality in haemodialysis (HD) patients. AIM: The aims of this study are to assess the influence of moderate FRR on survival in a cohort of prevalent dialysis patients with various dialysis session times and to challenge the FRR thresholds associated with increased mortality risk reported previously. METHODS: Interdialytic weight gain (IDWG) and FRR (calculated from ultrafiltration [UF], target weight, and session time prescriptions) were studied in 190 prevalent dialysis patients (female: 42%, mean age: 69...
March 24, 2017: Blood Purification
https://www.readbyqxmd.com/read/28322600/renal-mitochondrial-response-to-low-temperature-in-non-hibernating-and-hibernating-species
#2
George J Dugbartey, Maarten C Hardenberg, Wendelinde F Kok, Ate Boerema, Hannah V Carey, James Staples, Robert H Henning, Hjalmar Bouma
SIGNIFICANCE: Therapeutic hypothermia is commonly applied to limit ischemic injury in organ transplantation, during cardiac and brain surgery and after cardiopulmonary resuscitation. In these procedures, the kidneys are particularly at risk for ischemia/reperfusion injury (IRI), likely due to their high rate of metabolism. Although hypothermia mitigates ischemic kidney injury, it is not a panacea. Residual mitochondrial failure is thought to be a key event triggering loss of cellular homeostasis, and potentially cell death...
March 21, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28321250/percutaneous-nephrolithotomy-under-ultrasound-guidance-in-patients-with-renal-calculi-and-autosomal-dominant-polycystic-kidney-disease-a-report-of-11-cases
#3
Xiao Wang, Xuecheng Yang, Xiulong Zhong, Zhenlin Wang, Senyao Xue, Weifeng Yu, Zhen Dong
Nephrolithiasis accelerates the renal failure in the patients with ADPKD. In order to evaluate the role of percutaneous nephrolithotomy in management of calculus in these patients, 11 patients with autosomal dominant polycystic kidney disease and renal stones were included in the study. Two patients had bilateral renal stones. All patients were treated by percutaneous nephrolithotomy under ultrasound guidance. 13 percutaneous nephrolithotomy procedures were performed in 1 stage by the urology team under ultrasound guidance...
2017: Advances in Urology
https://www.readbyqxmd.com/read/28319023/isolated-bilateral-simplex-ureteric-ectopia-bladder-capacity-as-an-indicator-of-continence-outcome
#4
Vasilis Stavrinides, Paul Charlesworth, Dan Wood, Divyesh Desai, Abraham Cherian, Imran Mushtaq, Peter Cuckow, Naima Smeulders
INTRODUCTION: Isolated bilateral simplex ectopic ureters (BSEUs) are rare but pose a therapeutic challenge: ureteric reimplantation alone does not accomplish continence in all. Identifying the patients needing additional procedures for continence early could prevent multiple operations. OBJECTIVE: Potential preoperative indicators for postoperative continence are explored in eight BSEU girls without cloacal, anorectal, or spinal anomalies. STUDY DESIGN: With institutional approval, all patients with BSEU between 1985 and 2012 were retrospectively reviewed...
March 6, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28295607/incremental-hemodialysis-the-university-of-california-irvine-experience
#5
Mehrdad Ghahremani-Ghajar, Vanessa Rojas-Bautista, Wei-Ling Lau, Madeleine Pahl, Miguel Hernandez, Anna Jin, Uttam Reddy, Jason Chou, Yoshitsugu Obi, Kamyar Kalantar-Zadeh, Connie M Rhee
Incremental hemodialysis has been examined as a viable hemodialysis regimen for selected end-stage renal disease (ESRD) patients. Preservation of residual kidney function (RKF) has been the driving impetus for this approach given its benefits upon the survival and quality of life of dialysis patients. While clinical practice guidelines recommend an incremental start of dialysis in peritoneal dialysis patients with substantial RKF, there remains little guidance with respect to incremental hemodialysis as an initial renal replacement therapy regimen...
March 14, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28285332/the-role-of-l-arginine-l-homoarginine-nitric-oxide-pathway-for-aortic-distensibility-and-intima-media-thickness-in-stroke-patients
#6
Arash Haghikia, Georgi Radoslavov Yanchev, Arslan Arinc Kayacelebi, Erik Hanff, Nils Bledau, Christian Widera, Kristina Sonnenschein, Aiden Haghikia, Karin Weissenborn, Johann Bauersachs, Udo Bavendiek, Dimitrios Tsikas
Asymmetric dimethylarginine (ADMA) and L-homoarginine (hArg) are L-arginine (Arg) metabolites derived from different pathways. Protein arginine N-methyltransferase (PRMT) and subsequent proteolysis of proteins containing methylarginine residues release ADMA. Arginine:glycine amidinotransferase (AGAT) converts Arg to hArg and guanidinoacetate (GAA). While high concentrations of ADMA and low concentrations of hArg in the blood have been established as cardiovascular risk markers, the cardiovascular relevance of GAA is still unexplored...
March 11, 2017: Amino Acids
https://www.readbyqxmd.com/read/28265323/bladder-and-bowel-dysfunction-in-children-an-update-on-the-diagnosis-and-treatment-of-a-common-but-underdiagnosed-pediatric-problem
#7
REVIEW
Joana Dos Santos, Roberto I Lopes, Martin A Koyle
Bladder and bowel dysfunction (BBD) describes a spectrum of lower urinary symptoms (LUTS) accompanied by fecal elimination issues that manifest primarily by constipation and/or encopresis. This increasingly common entity is a potential cause of significant physical and psychosocial burden for children and families. BBD is commonly associated with vesicoureteral reflux (VUR) and recurrent urinary tract infections (UTIs), which at its extreme may lead to renal scarring and kidney failure. Additionally, BBD is frequently seen in children diagnosed with behavioural and neuropsychiatric disorders such as attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD)...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28228465/prognostic-value-of-residual-urine-volume-gfr-by-24-hour-urine-collection-and-egfr-in-patients-receiving-dialysis
#8
Mi Jung Lee, Jung Tak Park, Kyoung Sook Park, Young Eun Kwon, Hyung Jung Oh, Tae-Hyun Yoo, Yong-Lim Kim, Yon Su Kim, Chul Woo Yang, Nam-Ho Kim, Shin-Wook Kang, Seung Hyeok Han
BACKGROUND AND OBJECTIVES: Residual kidney function can be assessed by simply measuring urine volume, calculating GFR using 24-hour urine collection, or estimating GFR using the proposed equation (eGFR). We aimed to investigate the relative prognostic value of these residual kidney function parameters in patients on dialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Using the database from a nationwide prospective cohort study, we compared differential implications of the residual kidney function indices in 1946 patients on dialysis at 36 dialysis centers in Korea between August 1, 2008 and December 31, 2014...
March 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28219328/%C3%AE-trace-protein-is-highly-removed-during-haemodialysis-with-high-flux-and-super-high-flux-membranes
#9
Carlo Donadio, Danika Tognotti, Laura Caponi, Aldo Paolicchi
BACKGROUND: Serum β-trace protein (βTP, MW 23-29 kDa) is a marker of GFR impairment in renal patients. Recent papers propose to predict residual renal function (RRF) in maintenance haemodialysis (MHD) patients from serum concentrations of βTP and other small proteins, avoiding the collection of urine. Few data are available on the removal of βTP in patients treated with dialysis membranes with different flux characteristics. The aim of this study was to evaluate the effects of haemodialysis with low-flux, high-flux and super high-flux membranes on serum concentrations of ßTP in MHD patients with null RRF...
February 20, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28216932/role-of-calculated-glomerular-filtration-rate-using-percutaneous-nephrostomy-creatinine-clearance-in-the-era-of-radionuclide-scintigraphy
#10
Sunil Raghunath Patil, Prakash Wamanrao Pawar, Abhishek Jaysukhbhai Savalia, Shankar Tanaji Mundhe, Sayalee Suryabhan Narwade, Ashwin Sunil Tamhankar
CONTEXT: Gates method tends to over-estimate glomerular filtration rate (GFR) in borderline functioning kidneys. We study the role of calculated GFR in these cases in decision-making regarding performing kidney-sparing surgery or nephrectomy. AIMS: The aim of this study is to find the correlation between GFR calculated by percutaneous nephrostomy (PCN) urine creatinine clearance in obstructed kidneys and GFR by radionuclide scintigraphy. It also studies the role of this calculated GFR in borderline functioning kidneys...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28212787/application-of-a-pattern-of-incremental-haemodialysis-based-on-residual-renal-function-when-starting-renal-replacement-therapy
#11
José L Merino, Patricia Domínguez, Blanca Bueno, Yésika Amézquita, Beatriz Espejo, Vicente Paraíso
INTRODUCTION: The interest in the preservation of residual kidney function on starting renal replacement therapy (RRT) is very common in techniques such as peritoneal dialysis but less so in haemodialysis (HD). In our centre the pattern of incremental dialysis (2 HD/week) has been an option for a group of patients. Here we share our experience with this regimen from March 2008. MATERIAL AND METHODS: We included incident patients with residual diuresis >1,000ml/24h, clinical stability, absence of oedema, absence of hyperkalaemia >6...
January 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28202171/residual-renal-function-a-paradigm-shift
#12
Jerome Lowenstein, Jared J Grantham
Residual renal function (RRF) in patients undergoing dialysis treatments is currently viewed as glomerular filtrate that has escaped tubular reabsorption. RRF has been quantified as a clearance of urea or creatinine, or urea + creatinine. A major paradigm shift has followed the recognition that a substantial number of organic anion retention solutes (possible "uremic toxins") are protein-bound and therefore are not readily filtered. These protein-bound aryl compounds are secreted by renal tubular organic anion transporters (OATs)...
March 2017: Kidney International
https://www.readbyqxmd.com/read/28185299/incremental-hemodialysis-a-european-perspective
#13
Kamonwan Tangvoraphonkchai, Andrew Davenport
Most patients initiating hemodialysis have residual renal function (RRF). Whereas RRF is monitored prior to commencing hemodialysis, once dialysis is started most centres simply rely on dialyzer urea clearance to determine adequate uremic toxin clearance and disregard the effect of RRF. However sustaining RRF is important for the dialysis patient, as RRF reduces inter-dialytic weight gains, increases middle molecule and protein bound toxin clearances and is associated with better quality of life assessments...
February 9, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28178126/free-and-total-p-cresol-sulfate-levels-and-infectious-hospitalizations-in-hemodialysis-patients-in-choice-and-hemo
#14
RANDOMIZED CONTROLLED TRIAL
Tanushree Banerjee, Timothy W Meyer, Tariq Shafi, Thomas H Hostetter, Michal Melamed, Yunnuo Zhu, Neil R Powe
The uremic syndrome is attributed to progressive retention of compounds that, under normal conditions, are excreted by the healthy kidneys. p-cresol sulfate (PCS), a prototype protein-bound uremic retention solute, has been shown to exert toxic effects in vitro. Recent studies have identified relations between increased levels of PCS and indoxyl sulfate (IS) and adverse clinical outcomes in hemodialysis patients. We explored the relationship between free and total PCS and IS with infection-related hospitalizations (IH) and septicemia in 2 cohorts, Choices for Healthy Outcomes in Caring for end-stage renal disease (ESRD) Study (CHOICE) and Hemodialysis Study (HEMO)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28177099/-the-power-of-phosphaturia-in-the-infrequent-hemodialysis
#15
Piergiorgio Bolasco, Stefano Murtas, Stefania Caria, Andrea Galfrè, Maria Paola Esposito, Rita Contu, Maria Luisa Deiana, Antonella Serra, Katia Cannas, Simonetta Caria, Irene Sitzia, Patrizia Scotto, Pierluigi Spiga, Gabriella Concas
INTRODUCTION: Residual renal function (RRF) and phosphaturia had not stimulated particular interest in studies regarding patients on hemodialysis. In the current year the Authors have selected a series of patients with RRF undergoing infrequent hemodialysis treatments. PURPOSE: The Authors have carried out a study of the phosphate balance in patients on infrequent hemodialysis with the hypothesis that the phosphaturia was always neglected in hemodialysis patients, but it could represent a positive impact element on the cardiovascular events and mortality in hemodialysis...
January 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28160962/increased-serum-renalase-in-peritoneal-dialysis-patients-is-it-related-to-cardiovascular-disease-risk
#16
Ebru Gok Oguz, Hadim Akoglu, Gulay Ulusal Okyay, Guner Karaveli Gursoy, Tolga Yildirim, Ozgur Merhametsiz, Tolga Cimen, Basol Canbakan, Ekrem Yeter, M Deniz Ayli
BACKGROUND: Renalase, with possible monoamine oxidase activity, is implicated in degradation of catecholamines; which suggests novel mechanisms of cardiovascular complications in patients with chronic kidney diseases. Epicardial adipose tissue (EAT) has been found to correlate with cardiovascular diseases (CVD) in dialysis patients. The present study aimed to evaluate the association of serum renalase levels with EAT thickness and other CVD risk factors in peritoneal dialysis (PD) patients...
February 1, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28153193/low-gdp-solution-and-glucose-sparing-strategies-for-peritoneal-dialysis
#17
REVIEW
Cheuk Chun Szeto, David W Johnson
Long-term exposure to a high glucose concentration in conventional peritoneal dialysis (PD) solution has a number of direct and indirect (via glucose degradation products [GDP]) detrimental effects on the peritoneal membrane, as well as systemic metabolism. Glucose- or GDP-sparing strategies often are hypothesized to confer clinical benefits to PD patients. Icodextrin (glucose polymer) solution improves peritoneal ultrafiltration and reduces the risk of fluid overload, but these beneficial effects are probably the result of better fluid removal rather than being glucose sparing...
January 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28151912/cystatin-c-is-associated-with-partial-recovery-of-kidney-function-and-progression-to-chronic-kidney-disease-in-living-kidney-donors-observational-study
#18
Ji-Yeon Bang, Seon-Ok Kim, Sae-Gyul Kim, Jun-Gol Song, Gyu Sam Hwang
Donor nephrectomy in living-donor kidney transplantation may result in hyperfiltration injury in remnant kidney; however, its clinical implication in partial recovery of kidney function (PRKF) in remnant kidney and chronic kidney disease (CKD) progression remains unclear. Thus, we investigated the effect of PRKF on CKD development in the residual kidney and the utility of cystatin-C (Cys-C) in evaluating renal function in living-donor kidney transplantation donors.The electronic medical records and laboratory results of 1648 kidney transplant (KT) donors and 13,834 healthy nondonors between January 2006 and November 2014 were reviewed...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28148536/impact-of-rapid-ultrafiltration-rate-on-changes-in-the-echocardiographic-left-atrial-volume-index-in-patients-undergoing-haemodialysis-a-longitudinal-observational-study
#19
Jwa-Kyung Kim, Young Rim Song, GunHa Park, Hyung Jik Kim, Sung Gyun Kim
OBJECTIVE: Optimal fluid management is essential when caring for a patient on haemodialysis (HD). However, if the fluid removal is too rapid, the resultant higher ultrafiltration rate (UFR) disadvantageously promotes haemodynamic instability and cardiac injury. We evaluated the effects of a rapid UFR on changes in the echocardiographic left atrial volume index (LAVI) over a period of time. DESIGN: Longitudinal observational study. SETTING AND PARTICIPANTS: A total of 124 new patients on HD...
February 1, 2017: BMJ Open
https://www.readbyqxmd.com/read/28144977/changing-landscape-for-peritoneal-dialysis-optimizing-utilization
#20
Martin J Schreiber
The future growth of peritoneal dialysis (PD) will be directly linked to the shift in US healthcare to a value-based payment model due to PD's lower yearly cost, early survival advantage over in-center hemodialysis, and improved quality of life for patients treating their kidney disease in the home. Under this model, nephrology practices will need an increased focus on managing the transition from chronic kidney disease to end-stage renal disease (ESRD), providing patient education with the aim of accomplishing modality selection and access placement ahead of dialysis initiation...
February 1, 2017: Seminars in Dialysis
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