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Hydration status

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https://www.readbyqxmd.com/read/28105770/does-peritoneal-protein-transport-increase-with-peritoneal-dialysis-therapy-duration-and-lead-to-extracellular-water-overload-in-peritoneal-dialysis-patients
#1
Cate Goodlad, Andrew Davenport
Faster peritoneal transport status has been associated with adverse outcomes for peritoneal dialysis (PD) patients. Peritoneal protein clearance, through large pores, may be a surrogate marker of local inflammation. We wished to determine whether peritoneal protein transport increased with PD duration or was associated with extracellular water (ECW) expansion. We studied the relationships between 4 h Dialysate (D)/Serum (S) protein and ECW excess, using multifrequency bioelectrical impedance assessments, in 103 PD patients with up to 4 years of prospectively collected peritoneal equilibrium test (PET) results...
January 19, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28103829/a-comparison-of-the-effects-of-oral-vs-intravenous-hydration-on-subclinical-acute-kidney-injury-in-living-kidney-donors-a-protocol-of-a-randomised-controlled-trial
#2
Shona Mackinnon, Emma Aitken, Ryan Ghita, Marc Clancy
BACKGROUND: Optimal treatment for established renal failure is living donor kidney transplantation. However this pathway exposes healthy individuals to significant reduction in nephron mass via major surgical procedure. Laparoscopic donor nephrectomy is now the most common method for live donor transplantation, reducing both donor post-operative pain and recovery time. However this procedure exposes kidneys to additional haemodynamic stresses. It has been suggested that donor hydration-particularly the use of preoperative intravenous fluids-may counteract these stresses, reducing subclinical acute kidney injury and ultimately improving long-term renal function...
January 19, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28102499/aortic-radial-pulse-wave-velocity-ratio-in-end-stage-renal-disease-patients-association-with-age-body-tissue-hydration-status-renal-failure-etiology-and-five-years-of-hemodialysis
#3
Daniel Bia, Rodolfo Valtuille, Cintia Galli, Sandra Wray, Ricardo Armentano, Yanina Zócalo, Edmundo Cabrera-Fischer
INTRODUCTION: The etiology of the end-stage renal disease (ESRD) and the hydration status may be involved in the arterial stiffening process observed in hemodialyzed patients. The ratio between carotid-femoral and carotid-radial pulse wave velocity (PWV ratio) was recently proposed to characterize the patient-specific stiffening process. AIMS: to analyze: (1) the PWV-ratio in healthy and hemodialyzed subjects, analyzing potential changes associated to etiologies of the ESRD, (2) the PWV-ratio and hydration status using multiple-frequency bioimpedance and, (3) the effects of hemodialysis on PWV-ratio in a 5-year follow-up...
January 19, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28089477/bioimpedance-and-fluid-status-in-children-and-adolescents-treated-with-dialysis
#4
Gregorio P Milani, Jaap W Groothoff, Federica A Vianello, Emilio F Fossali, Fabio Paglialonga, Alberto Edefonti, Carlo Agostoni, Dario Consonni, Dewi van Harskamp, Johannes B van Goudoever, Henk Schierbeek, Michiel J S Oosterveld
BACKGROUND: Assessment of hydration status in patients with chronic kidney failure treated by dialysis is crucial for clinical management decisions. Dilution techniques are considered the gold standard for measurement of body fluid volumes, but they are unfit for day-to-day care. Multifrequency bioimpedance has been shown to be of help in clinical practice in adults and its use in children and adolescents has been advocated. We investigated whether application of multifrequency bioimpedance is appropriate for total-body water (TBW) and extracellular water (ECW) measurement in children and adolescents on dialysis therapy...
January 12, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28060004/emerging-technology-for-enhanced-assessment-of-skin-status
#5
Caroline J Borzdynski, William McGuiness, Charne Miller
Pressure injury (PI) prevention has become a key nursing priority that requires clear identification of visual cues representative of PI risk. There is generalized agreement that erythema and skin wetness and/or maceration should be routinely examined by the clinician as part of PI risk assessment. Such an assessment is largely qualitative, deeply reliant on the perception and interpretation of the clinician. Consequently, skin parameters may be misinterpreted, underestimated, or even missed completely. Objective techniques are needed to augment accurate assessment of erythema and skin wetness and/or maceration...
January 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28055205/interfacial-solvation-and-surface-ph-of-phenol-and-dihydroxybenzene-aqueous-nanoaerosols-unveiled-by-aerosol-vuv-photoelectron-spectroscopy
#6
Ping-Cheng Lin, Zhong-Hang Wu, Meng-Sin Chen, Yu-Lin Li, Wei-Ren Chen, Tzu-Ping Huang, Yin-Yu Lee, Chia C Wang
While the significance of aqueous interfaces has been recognized in numerous important fields, it can be even more prominent for nanoscaled aqueous aerosols due to their large surface-to-volume ratios and prevalent existence in nature. Also, considering that organic species are often mixed with aqueous aerosols in nature, a fundamental understanding on the electronic and structural properties of organic species in aqueous nanoaerosols is essential to learn the interplay between water and organic solutes under the nanoscaled size regime...
January 5, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28033185/use-of-the-body-composition-monitor-for-fluid-status-measurements-in-elderly-malnourished-subjects
#7
David F Keane, Kim Bowra, Kathryn Kearney, Elizabeth Lindley
Most haemodialysis (HD) patients are able to finish dialysis at or below the normally hydrated weight determined using the body composition monitor (BCM). However, a minority become symptomatic when they are still fluid overloaded based on BCM-measured overhydration (OH). Malnourished patients frequently fall into this group, suggesting that they may have OH that is inaccessible to ultrafiltration. To isolate any effect of malnutrition on BCM-measured OH from those relating to renal failure, OH measurements for twenty elderly subjects with normal renal function who were classified as malnourished were compared with an age-matched cohort with no known nutritional issues...
December 26, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28030646/tree-circumference-dynamics-in-four-forests-characterized-using-automated-dendrometer-bands
#8
Valentine Herrmann, Sean M McMahon, Matteo Detto, James A Lutz, Stuart J Davies, Chia-Hao Chang-Yang, Kristina J Anderson-Teixeira
Stem diameter is one of the most commonly measured attributes of trees, forming the foundation of forest censuses and monitoring. Changes in tree stem circumference include both irreversible woody stem growth and reversible circumference changes related to water status, yet these fine-scale dynamics are rarely leveraged to understand forest ecophysiology and typically ignored in plot- or stand-scale estimates of tree growth and forest productivity. Here, we deployed automated dendrometer bands on 12-40 trees at four different forested sites-two temperate broadleaf deciduous, one temperate conifer, and one tropical broadleaf semi-deciduous-to understand how tree circumference varies on time scales of hours to months, how these dynamics relate to environmental conditions, and whether the structure of these variations might introduce substantive error into estimates of woody growth...
2016: PloS One
https://www.readbyqxmd.com/read/28028612/qtls-for-cell-wall-bound-phenolics-in-relation-to-the-photosynthetic-apparatus-activity-and-leaf-water-status-under-drought-stress-at-different-growth-stages-of-triticale
#9
Tomasz Hura, Mirosław Tyrka, Katarzyna Hura, Agnieszka Ostrowska, Kinga Dziurka
The present study aimed at identifying the regions of triticale genome responsible for cell wall saturation with phenolic compounds under drought stress during vegetative and generative growth. Moreover, the loci determining the activity of the photosynthetic apparatus, leaf water content (LWC) and osmotic potential (Ψ o) were identified, as leaf hydration and functioning of the photosynthetic apparatus under drought are associated with the content of cell wall-bound phenolics (CWPh). Compared with LWC and Ψ o, CWPh fluctuations were more strongly associated with changes in chlorophyll fluorescence...
December 27, 2016: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28009907/status-and-prospects-in-higher-alcohols-synthesis-from-syngas
#10
REVIEW
Ho Ting Luk, Cecilia Mondelli, Daniel Curulla Ferré, Joseph A Stewart, Javier Pérez-Ramírez
Higher alcohols are important compounds with widespread applications in the chemical, pharmaceutical and energy sectors. Currently, they are mainly produced by sugar fermentation (ethanol and isobutanol) or hydration of petroleum-derived alkenes (heavier alcohols), but their direct synthesis from syngas (CO + H2) would comprise a more environmentally-friendly, versatile and economical alternative. Research efforts in this reaction, initiated in the 1930s, have fluctuated along with the oil price and have considerably increased in the last decade due to the interest to exploit shale gas and renewable resources to obtain the gaseous feedstock...
December 23, 2016: Chemical Society Reviews
https://www.readbyqxmd.com/read/27987483/the-diagnostic-utility-of-sonographic-carotid-flow-time-in-determining-volume-responsiveness
#11
Hamid Shokoohi, Grant W Berry, Murteza Shahkolahi, Jackson King, Jordan King, Mohammad Salimian, Ameneh Poshtmashad, Ali Pourmand
OBJECTIVE: We aimed to predict volume responsiveness and to assess the diagnostic accuracy of carotid flow time (FTc) with the change in hydration status before and after a passive leg raise (PLR) maneuver. METHODS: Participants who presented at a community health fair in a dehydrated state following a prolonged fast while observing the month of Ramadan were recruited. Sonographic FTc measurements were obtained in the semi-Fowler position and after a PLR maneuver while participants were in a fasting state and repeated approximately 3 hours after breaking their fast...
November 9, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27987064/usefulness-of-combining-admission-brain-natriuretic-peptide-bnp-plus-hospital-discharge-bioelectrical-impedance-vector-analysis-biva-in-predicting-90%C3%A2-days-cardiovascular-mortality-in-patients-with-acute-heart-failure
#12
Simona Santarelli, Veronica Russo, Irene Lalle, Benedetta De Berardinis, Silvia Navarin, Laura Magrini, Antonio Piccoli, Marta Codognotto, Luigi Maria Castello, Gian Carlo Avanzi, Humberto Villacorta, Bernardo Luiz Campanário Precht, Pilar Barreto de Araújo Porto, Aline Sterque Villacorta, Salvatore Di Somma
Heart failure is a disease characterized by high prevalence and mortality, and frequent rehospitalizations. The aim of this study is to investigate the prognostic power of combining brain natriuretic peptide (BNP) and congestion status detected by bioelectrical impedance vector analysis (BIVA) in acute heart failure patients. This is an observational, prospective, and a multicentre study. BNP assessment was measured upon hospital arrival, while BIVA analysis was obtained at the time of discharge. Cardiovascular deaths were evaluated at 90 days by a follow up phone call...
December 16, 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/27965919/results-of-protocol-based-perioperative-management-in-off-pump-coronary-artery-bypass-grafting-for-patients-with-non-dialysis-dependent-chronic-kidney-disease
#13
Jeong-Won Kim, Hyung Tae Sim, Jae Suk Yoo, Dong Jin Kim, Kwang Ree Cho
BACKGROUND: Recent studies have demonstrated the benefits of off-pump coronary bypass grafting over the on-pump technique in patients with chronic kidney disease (CKD). To further reduce the risk of acute kidney injury and the need for renal replacement therapy, even in patients undergoing off-pump coronary artery bypass grafting, we adopted protocol-based perioperative management for patients with CKD. METHODS: From December 2012 to March 2015, 265 patients underwent isolated off-pump coronary artery bypass grafting...
December 2016: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27943170/comparison-of-multiple-fluid-status-assessment-methods-in-patients-on-chronic-hemodialysis
#14
Giannis Alexiadis, Stelios Panagoutsos, Stefanos Roumeliotis, Ilias Stibiris, Angelos Markos, Konstantia Kantartzi, Ploumis Passadakis
PURPOSE: Control of hydration status is an important constituent of adequate and efficient hemodialysis (HD) treatment. Nevertheless, there are no precise clinical indices for early recognition of small changes in fluid status of patients undergoing chronic hemodialysis therapy. This study aimed to evaluate and compare the widely used and reliable method of indexed inferior vena cava diameter (IVCDi) with established and more recently available techniques (bioelectrical impedance analysis [BIA], continuous blood volume monitoring [Crit-line], and the B-line score [BLS] with lung ultrasonography) for estimating the hydration status of patients on HD...
December 10, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27935519/the-role-of-obesity-in-the-relation-between-total-water-intake-and-urine-osmolality-in-us-adults-2009-2012
#15
Asher Y Rosinger, Hannah G Lawman, Lara J Akinbami, Cynthia L Ogden
BACKGROUND: Adequate water intake is critical to physiologic and cognitive functioning. Although water requirements increase with body size, it remains unclear whether weight status modifies the relation between water intake and hydration status. OBJECTIVE: We examined how the association between water intake and urine osmolality, which is a hydration biomarker, varied by weight status. DESIGN: NHANES cross-sectional data (2009-2012) were analyzed in 9601 nonpregnant adults aged ≥20 y who did not have kidney failure...
December 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27932196/a-mini-volume-loading-test-mvlt-using-2-5-mlkg-1-boluses-of-crystalloid-for-indication-of-perioperative-changes-in-hydration-status
#16
Audrius Andrijauskas, Christer H Svensen, Narūnas Porvaneckas, Jūratė Šipylaitė, Edgaras Stankevičius, Darius Činčikas, Valentinas Uvarovas, Saulė Švedienė, Igoris Šatkauskas, Saulius Vosylius, Giedrius Kvederas
BACKGROUND AND OBJECTIVE: A mini volume loading test (mVLT) evaluating hemodilution during step-wise crystalloid infusion has established that the arterio-capillary plasma dilution difference is inversely correlated to the body hydration level of subjects. This observational study aimed to test whether this can be replicated in a perioperative setting using a 2.5-mLkg(-1) boluses. MATERIALS AND METHODS: The mVLT was performed before induction of regional anesthesia and 24h later...
2016: Medicina
https://www.readbyqxmd.com/read/27928711/dry-weight-assessment-by-combined-ultrasound-and-bioimpedance-monitoring-in-low-cardiovascular-risk-hemodialysis-patients-a-randomized-controlled-trial
#17
Dimitrie Siriopol, Mihai Onofriescu, Luminita Voroneanu, Mugurel Apetrii, Ionut Nistor, Simona Hogas, Mehmet Kanbay, Radu Sascau, Dragos Scripcariu, Adrian Covic
PURPOSE: Fluid overload is associated with adverse outcomes in hemodialysis (HD) patients. The precise assessment of hydration status in HD patients remains a major challenge for nephrologists. Our study aimed to explore whether combining two bedside methods, lung ultrasonography (LUS) and bioimpedance, may provide complementary information to guide treatment in specific HD patients. METHODS: In total, 250 HD patients from two dialysis units were included in this randomized clinical trial...
January 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/27928212/relationship-between-autonomic-markers-of-heart-rate-and-subjective-indicators-of-recovery-status-in-male-elite-badminton-players
#18
Christo A Bisschoff, Ben Coetzee, Michael R Esco
The primary aim of the study was to determine if heart rate variability (HRV), and heart rate recovery (HRR) are related to several subjective indicators of recovery status (muscle soreness, hydration status, sleep quality and quantity as well as pre-competition mood states) for different match periods in male, elite, African, singles badminton players. HRV and HRR were measured in twenty-two badminton players before (pre-match), during (in-match), after (post-match) and during rest periods (in-match rest) of 46 national and international matches...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27901340/effects-of-a-trail-mountain-race-on-neuromuscular-performance-and-hydration-status-in-trained-runners
#19
Ernest Baiget, Javier Peña, Xantal Borràs, Toni Caparrós, José L López, Francesc Marin, Jordi Coma, Eduard Comerma
BACKGROUND: The aims of this study were (a) to examine the effects of a trail mountain race (TMR) on hydration status and neuromuscular performance of recreational trail runners and (b) to determine the relationship among these parameters, subject's characteristics and competitive performance. METHODS: 35 male recreational trail runners (age, 38.1 ± 9.5 years; height, 177.3 ± 5.8 cm; body mass, 73.8 ± 8.4 kg; mean ± SD) were assessed before and after a 21.1 km TMR...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27893870/associations-between-hydration-status-intravenous-fluid-administration-and-outcomes-of-patients-infected-with-shiga-toxin-producing-escherichia-coli-a-systematic-review-and-meta-analysis
#20
Silviu Grisaru, Jianling Xie, Susan Samuel, Lisa Hartling, Phillip I Tarr, David Schnadower, Stephen B Freedman
Importance: The associations between hydration status, intravenous fluid administration, and outcomes of patients infected with Shiga toxin-producing Escherichia coli (STEC) remain unclear. Objective: To determine the relationship between hydration status, the development and severity of hemolytic uremic syndrome (HUS), and adverse outcomes in STEC-infected individuals. Data Sources: MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials via the OvidSP platform, PubMed via the National Library of Medicine, CINAHL Plus with full text, Scopus, Web of Science, ClinicalTrials...
January 1, 2017: JAMA Pediatrics
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