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https://www.readbyqxmd.com/read/28227681/wearable-impedance-monitoring-system-for-dialysis-patients
#1
S Bonnet, A Bourgerette, S Gharbi, C Rubeck, W Arkouche, B Massot, E McAdams, A Montalibet, P Jallon, S Bonnet, A Bourgerette, S Gharbi, C Rubeck, W Arkouche, B Massot, E McAdams, A Montalibet, P Jallon, A Bourgerette, B Massot, P Jallon, C Rubeck, S Gharbi, A Montalibet, W Arkouche, S Bonnet, E McAdams
This paper describes the development and the validation of a prototype wearable miniaturized impedance monitoring system for remote monitoring in home-based dialysis patients. This device is intended to assess the hydration status of dialysis patients using calf impedance measurements. The system is based on the low-power AD8302 component. The impedance calibration procedure is described together with the Cole parameter estimation and the hydric volume estimation. Results are given on a test cell to validate the design and on preliminary calf measurements showing Cole parameter variations during hemodialysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227494/localised-impedance-monitoring-device-for-the-remote-clinical-assessment-of-home-based-dialysis-patients
#2
A Montalibet, W Arkouche, P Bogonez Franco, S Bonnet, A Clarion, G Delhomme, C Gehin, S Gharbi, R Guillemaud, P Jallon, B Massot, P Pham, E Ribbe-Cornet, E McAdams, A Montalibet, W Arkouche, P Bogonez Franco, S Bonnet, A Clarion, G Delhomme, C Gehin, S Gharbi, R Guillemaud, P Jallon, B Massot, P Pham, E Ribbe-Cornet, E McAdams, B Massot, P Pham, A Montalibet, P Jallon, E Ribbe-Cornet, P Bogonez Franco, G Delhomme, S Bonnet, R Guillemaud, W Arkouche, A Clarion, C Gehin, S Gharbi, E McAdams
BioImpedance Spectroscopy (BIS) has been clinically used to determine the hydrational status of patients undergoing haemodialysis (HD). In the present project we are developing a calf-localised, integrated impedimetric device to periodically and conveniently measure and transmit information on the hydrational status of home-based patients to a remote clinic. Surprisingly, we have found that simple postural changes before or during measurement lead to significant fluid shifts in the lower leg that are as important and as long lasting as the effects of haemodialysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226292/hplc-dad-qtof-ms-profiling-of-phenolics-from-leaf-extracts-of-two-tunisian-fig-cultivars-potential-as-a-functional-food
#3
Olfa Belguith-Hadriche, Sonda Ammar, María Del Mar Contreras, Hamadi Fetoui, Antonio Segura-Carretero, Abdelfattah El Feki, Mohamed Bouaziz
The phenolic constituents of the aqueous-ethanolic extract of two Tunisian Ficus carica leaves cultivars and their hypoglycaemic, hypolipidaemic and antioxidative activities in alloxan-induced diabetic rats were investigated. Our results demonstrated that the treatment with the leaves extracts of F. carica improved lipid profile and reduced blood glucose level as well as thiobarbituric acid-reactive substances content. The antioxidant enzymes activity in the liver and heart tissues of diabetic rats was increased after the treatment...
February 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28224062/correction-hydration-status-as-a-predictor-of-high-altitude-mountaineering-performance
#4
Eric Ladd, Katherine M Shea, Patrick Bagley, Sean Rundell, Paul S Auerbach, Elizabeth A Pirrotta, Ewen Wang, Grant S Lipman
[This corrects the article DOI: 10.7759/cureus.918.].
February 16, 2017: Curēus
https://www.readbyqxmd.com/read/28209636/a-randomized-crossover-trial-of-dietary-sodium-restriction-in-stage-3-4-ckd
#5
Rajiv Saran, Robin L Padilla, Brenda W Gillespie, Michael Heung, Scott L Hummel, Vimal Kumar Derebail, Bertram Pitt, Nathan W Levin, Fansan Zhu, Samer R Abbas, Li Liu, Peter Kotanko, Philip Klemmer
BACKGROUND AND OBJECTIVES: Patients with chronic kidney disease (CKD) are often volume expanded and hypertensive. Few controlled studies have assessed the effects of a sodium-restricted diet (SRD) in CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a randomized crossover trial to evaluate the effect of SRD (target <2 g sodium per day) versus usual diet on hydration status (by bioelectrical impedance spectroscopy) and blood pressure (BP) between May of 2009 and May of 2013...
February 16, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28208688/the-impact-of-heat-exposure-and-sleep-restriction-on-firefighters-work-performance-and-physiology-during-simulated-wildfire-suppression
#6
Grace E Vincent, Brad Aisbett, Brianna Larsen, Nicola D Ridgers, Rod Snow, Sally A Ferguson
This study was designed to examine the effects of ambient heat on firefighters' physical task performance, and physiological and perceptual responses when sleep restricted during simulated wildfire conditions. Thirty firefighters were randomly allocated to the sleep restricted (n = 17, SR; 19 °C, 4-h sleep opportunity) or hot and sleep restricted (n = 13, HOT + SR; 33 °C, 4-h sleep opportunity) condition. Firefighters performed two days of simulated, intermittent, self-paced work circuits comprising six firefighting tasks...
February 12, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28204901/the-effect-of-hydration-status-on-the-measurement-of-lean-tissue-mass-by-dual-energy-x-ray-absorptiometry
#7
Clodagh M Toomey, William G McCormack, Phil Jakeman
PURPOSE: Athletes cycle between exercise and recovery. Exercise invokes changes in total body water from thermal sweating, muscle and hepatic glycogen depletion and metabolic water loss. Recovery from exercise results in rehydration, substrate repletion, and possible glycogen supercompensation. Such changes may corrupt the measurement of hydrated tissues, such as lean tissue mass (LTM), by dual-energy X-ray absorptiometry (DXA). The purpose of this study was to determine the effect of exercise and thermal dehydration and subsequent glycogen supercompensation on DXA-based measurement of body composition...
February 16, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28203205/intraocular-pressure-is-a-poor-predictor-of-hydration-status-following-intermittent-exercise-in-the-heat
#8
Ian B Stewart, Brittany Dias, David N Borg, Aaron J E Bach, Beatrix Feigl, Joseph T Costello
Current hydration assessments involve biological fluids that are either compromised in dehydrated individuals or require laboratory equipment, making timely results unfeasible. The eye has been proposed as a potential site to provide a field-based hydration measure. The present study evaluated the efficacy and sensitivity of intraocular pressure (IOP) to assess hydration status. Twelve healthy males undertook two 150 min walking trials in 40°C 20% relative humidity. One trial matched fluid intake to body mass loss (control, CON) and the other had fluid restricted (dehydrated, DEH)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28198193/association-between-dehydration-and-fever-during-the-first-week-of-life
#9
Ariane Boutin, Ana Carceller, Marie Pier Desjardins, Marisol Sanchez, Jocelyn Gravel
BACKGROUND: Trying to differentiate serious bacterial infection (SBI) from a self-limiting illness in febrile infants seen in the pediatric emergency department (PED) is a significant challenge. The aim of the study was to determine the prevalence of dehydration and its relationship to SBI in febrile full-term newborns under 1 week of age seen in a PED. METHODS: A retrospective observational study was carried out on all children younger than 8 days of age with fever who presented to a single, tertiary care, PED from January 2009 to April 2014...
February 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28191783/concise-review-the-potential-use-of-intestinal-stem-cells-to-treat-patients-with-intestinal-failure
#10
Sung Noh Hong, James C Y Dunn, Matthias Stelzner, Martín G Martín
Intestinal failure is a rare life-threatening condition that results in the inability to maintain normal growth and hydration status by enteral nutrition alone. Although parenteral nutrition and whole organ allogeneic transplantation have improved the survival of these patients, current therapies are associated with a high risk for morbidity and mortality. Development of methods to propagate adult human intestinal stem cells (ISCs) and pluripotent stem cells raises the possibility of using stem cell-based therapy for patients with monogenic and polygenic forms of intestinal failure...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28168808/bioelectrical-impedance-vector-reference-values-for-assessing-body-composition-in-a-spanish-child-and-adolescent-population
#11
M P Redondo-Del-Río, M A Camina-Martín, J M Marugán-de-Miguelsanz, B de-Mateo-Silleras
OBJECTIVES: Reference values of the bioelectrical impedance vector for the Spanish child and adolescent population are needed for assessing body composition and hydration status in this population. The aim of this study is to provide reference values of the bioelectrical impedance vector in Spanish children and adolescents aged 4-18 years from Castilla y León. METHODS: This was a cross-sectional descriptive study conducted in 4401 Spanish healthy children and adolescents aged 4-18 years (2265 boys and 2136 girls)...
February 6, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28168774/when-i-get-like-that-put-a-gun-to-my-head
#12
Nancy Lutwak, Curt Dill
Yesterday a 95 year old man with prostate carcinoma and widespread bone metastases was brought to the emergency department because of blood in his urine after he pulled on his foley. At triage he was febrile and hypotensive, moaning incoherently which was not a change in mental status. Despite IV fluid hydration and pressors his blood pressure remained low. This article is protected by copyright. All rights reserved.
February 7, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28165555/nutritional-status-and-intrarenal-arterial-stiffness-in-cardiorenal-syndrome-a-pilot-study
#13
A Gigante, F Di Mario, B Barbano, E Rosato, G Di Lazzaro Giraldi, R Pofi, M L Gasperini, D Amoroso, R Cianci, A Laviano
OBJECTIVE: Cardio-Renal Syndrome (CRS) is a condition, which is more frequently observed in clinical practice. The aim of this study is to explore nutritional status and intrarenal arterial stiffness in patients affected by CRS. PATIENTS AND METHODS: 14 consecutive CRS patients, screened for anthropometry, biochemistry, nutritional and metabolic status underwent renal Doppler ultrasound and whole-body bioimpedance spectroscopy (BIS). RESULTS: We found a positive correlation between phase angle (PA) and CKD-EPI and MDRD (p=0...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28153967/endotoxemia-in-peritoneal-dialysis-patients-a-pilot-study-to-examine-the-role-of-intestinal-perfusion-and-congestion
#14
Claire Grant, Laura Harrison, Caroline Hoad, Luca Marciani, Eleanor Cox, Charlotte Buchanan, Carolyn Costigan, Susan Francis, Ka-Bik Lai, Cheuk-Chun Szeto, Penny Gowland, Christopher McIntyre
Endotoxemia is common in advanced chronic kidney disease and is particularly severe in those receiving dialysis. In hemodialysis patients, translocation from the bowel occurs as a consequence of recurrent circulatory stress leading to a reduction in circulating splanchnic volume and increased intestinal permeability. Peritoneal dialysis (PD) patients are often volume expanded and have continuous direct immersion of bowel in fluid; these may also be important factors in endotoxin translocation and would suggest different therapeutic strategies to improve it...
January 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28145415/changes-in-serum-osmotic-pressure-following-haemodialysis-treatments-lead-to-changes-in-bioimpedance-spectroscopy-estimates-of-lean-and-adipose-tissue
#15
M Antonelou, S El-Kateb, N Davies, A Davenport
Haemodialysis (HD) patients are at risk of sarcopenia. Newer bioimpedance devices (BIS) using a three-compartmental body composition model, separate extracellular water overhydration from normo-hydrated lean tissue mass (LTM) and adipose tissue mass (ATM). During HD hydration status changes, along with changes in electrolytes and solutes, and may alter body composition measurements. As such, we measured BIS and serum osmotic pressure (sOP) pre- and post dialysis in 43 patients. There were no significant changes in LTM (39...
February 1, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28129234/inflammation-relates-to-resistance-training-induced-hypertrophy-in-elderly-patients
#16
Kristoffer Larsen Norheim, Christopher Kjaer Cullum, Jesper Loevind Andersen, Michael Kjaer, Anders Karlsen
PURPOSE: Aging is associated with a gradual loss of muscle mass, which some have suggested to be accelerated by short periods of muscle disuse due to medical illness. We investigated the effect of hospitalization on skeletal muscle mass in acutely ill geriatric patients with focus on the relationship between systemic inflammatory marker C-reactive protein (CRP) and changes in muscle mass, as well as the influence of resistance training upon muscle mass. METHOD: Unilateral leg press resistance exercise was conducted daily during the hospital period...
January 26, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28118756/contribution-of-volume-overload-to-the-arterial-stiffness-of-hemodialysis-patients
#17
Łukasz Czyżewski, Janusz Wyzgał, Emilia Czyżewska, Janusz Sierdziński, Łukasz Szarpak
Arterial stiffness is evaluated with the measurement of pulse wave velocity (PWV), while overhydration (OH) and nutritional status are evaluated with bioimpedance spectroscopy (BIS). In this study, we investigated the effect of a single dialysis session on arterial stiffness, hydration status, and laboratory parameters. The observational, cross-sectional, cohort study included 71 HD patients with mean age 64 ± 16 yrs. A Complior device was used to perform PWV measurements. The patients were examined immediately before and 15 min after a mid-week hemodialysis session...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28112767/nutritional-status-and-habitual-dietary-intake-are-associated-with-frail-skin-conditions-in-community-dwelling-older-people
#18
S Iizaka, S Nagata, H Sanada
OBJECTIVE: Prevention of frail skin is important in older people because frail skin is associated with a risk of injury in this population. In this study, we investigated the association of nutritional status and habitual dietary intake with skin conditions in community-dwelling older people. DESIGN: Cross-sectional study. SETTING: Three community settings in Japan from autumn to winter. PARTICIPANTS: Older people aged ≥65 years without care-need certification (n=118)...
2017: Journal of Nutrition, Health & Aging
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
#19
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...
February 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
#20
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
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