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Bioimpedance analysis

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https://www.readbyqxmd.com/read/28337238/body-composition-as-an-indicator-of-the-nutritional-status-in-children-with-newly-diagnosed-ulcerative-colitis-and-crohn-s-disease-a-prospective-study
#1
Paweł Więch, Monika Binkowska-Bury, Bartosz Korczowski
INTRODUCTION: The prevalence of nutritional status disorders in children with ulcerative colitis (UC) is much lower than in the case of Crohn's disease (CD). The largest variability in the components of body composition occurs at the time of a new diagnosis and in periods of disease exacerbation. AIM: Assessment of body composition in children with UC and CD. MATERIAL AND METHODS: The preliminary study included 59 children with inflammatory bowel disease (IBD) (34 children with UC vs...
2017: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/28329345/prevalence-and-clinical-correlates-of-sarcopenia-identified-according-to-the-ewgsop-definition-and-diagnostic-algorithm-in-hospitalized-older-people-the-glisten-study
#2
Lara Bianchi, Pasquale Abete, Giuseppe Bellelli, Mario Bo, Antonio Cherubini, Francesco Corica, Mauro Di Bari, Marcello Maggio, Giovanna Maria Manca, Maria Rosaria Rizzo, Andrea P Rossi, Francesco Landi, Stefano Volpato
Background: Prevalence of sarcopenia is substantial in most geriatrics settings, but estimates vary greatly across studies because of difference in population characteristics, diagnostic criteria, and methods used to assess muscle mass, muscle strength, and physical performance. We investigated the feasibility of the European Working Group on Sarcopenia in Older People (EWGSOP) algorithm assessment in hospitalized older adults and analyzed prevalence and clinical correlates of sarcopenia...
January 21, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28319679/evaluation-of-body-composition-with-bioimpedence-a-comparison-between-athletic-and-non-athletic-children
#3
Domenico Meleleo, Nicola Bartolomeo, Liliana Cassano, Alessandro Nitti, Giovanna Susca, Giuseppina Mastrototaro, Umberto Armenise, Annapaola Zito, Fiorella Devito, Pietro Scicchitano, Marco Matteo Ciccone
PURPOSE: Conventional Bioelectrical Impedance Analysis (BIA) or Bioelectrical Impedance Vector Analysis (BIVA) can provide direct evaluations of body composition. The purpose of this study was to evaluate lean and fat mass (FM), and hydration of children involved in daily competitive sports. METHODS: 190 non-athletic [8.2-10.5 years] and 29 competitive children [8.0-10.5 years] were enrolled. They were evaluated: at baseline (t0), 6 months (t1) and one year (t2)...
March 20, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28303474/respiratory-motion-reduction-with-a-dual-gating-approach-in-myocardial-perfusion-spect-effect-on-left-ventricular-functional-parameters
#4
Matti J Kortelainen, Tuomas M Koivumäki, Marko J Vauhkonen, Marja K Hedman, Satu T J Kärkkäinen, Juanita Niño Quintero, Mikko A Hakulinen
BACKGROUND: Respiratory motion (RM) complicates the analysis of myocardial perfusion (MP) single-photon emission computed tomography (SPECT) images. The effects of RM on left ventricular (LV) functional variables have not been thoroughly investigated. METHODS AND RESULTS: Thoracic electrical bioimpedance and electrocardiographic signals were recorded from eighteen patients undergoing the rest phase of a 1-day stress/rest cardiac-gated MP-SPECT examination. The signals and list-mode emission data were retrospectively processed to yield standard cardiac- and dual-gated (respiratory and cardiac gating) image sets applying a novel algorithm...
March 16, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28295857/single-frequency-and-multi-frequency-bioimpedance-analysis-what-is-the-difference
#5
Serkan Feyyaz Yalın, Sibel Gulcicek, Suna Avci, Banu Erkalma Senates, Mehmet Riza Altıparmak, Sinan Trabulus, Selma Alagoz, Hakan Yavuzer, Alper Doventas, Nurhan Seyahi
AIM: Bioelectrical impedance analysis is a promising method in determining the body compartments in hemodialysis patients. In this study, we aimed to investigate the agreement between two widely used methods: the single-frequency and multi-frequency bioelectrical impedance analyses. METHODS: Maintenance hemodialysis patients were enrolled in the study. Single-frequency and multi-frequency bioelectrical impedance analyses were performed consecutively before hemodialysis...
March 10, 2017: Nephrology
https://www.readbyqxmd.com/read/28275826/lower-jump-power-rather-than-muscle-mass-itself-is-associated-with-vertebral-fracture-in-community-dwelling-elderly-korean-women
#6
Eun Young Lee, Su Jin Lee, Kyoung Min Kim, Da Hea Seo, Seung Won Lee, Han Sol Choi, Hyeon Chang Kim, Yoosik Youm, Chang Oh Kim, Yumie Rhee
Sarcopenia is considered to be a risk factor for osteoporotic fracture, which is a major health problem in elderly women. In this study, we aimed to investigate the association of sarcopenia, with regard to muscle mass and function, with prevalent vertebral fracture in community-dwelling elderly women. We recruited 1281 women aged 64 to 87 years from the Korean Urban Rural Elderly cohort study. Muscle mass and function were measured using bioimpedance analysis and jumping mechanography. Skeletal muscle index (SMI) and jump power were used as an indicator of muscle mass and function, respectively...
March 9, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28271257/outcomes-of-diuretic-use-in-pre-dialysis-ckd-patients-with-moderate-renal-deterioration-attending-tertiary-care-referral-center
#7
Yusra Habib Khan, Azmi Sarriff, Azreen Syazril Adnan, Amer Hayat Khan, Tauqeer Hussain Mallhi
INTRODUCTION: Diuretic therapy has been the mainstay of treatment in chronic kidney disease (CKD) patients, primarily for hypertension and fluid overload. Apart from their beneficial effects, diuretic use is associated with adverse renal outcomes. The current study is aimed to determine the outcomes of diuretic therapy. METHODOLOGY: A prospective observational study was conducted by inviting pre-dialysis CKD patients. Fluid overload was assessed by Bioimpedance analysis (BIA)...
March 7, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28269447/using-bioimpedance-spectroscopy-parameters-as-real-time-feedback-during-tdcs
#8
Isar Nejadgholi, Herschel Caytak, Miodrag Bolic
An exploratory analysis is carried out to investigate the feasibility of using BioImpedance Spectroscopy (BIS) parameters, measured on scalp, as real-time feedback during Transcranial Direct Current Stimulation (tDCS). TDCS is shown to be a potential treatment for neurological disorders. However, this technique is not considered as a reliable clinical treatment, due to the lack of a measurable indicator of treatment efficacy. Although the voltage that is applied on the head is very simple to measure during a tDCS session, changes of voltage are difficult to interpret in terms of variables that affect clinical outcome...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268788/measurement-of-electrical-impedance-in-different-ex-vivo-tissues
#9
Davide Meroni, Dario Bovio, Pietro A Frisoli, Andrea Aliverti
Bioimpedance allows living tissues characterization and detection of pathological states. Although in previous years several methods have been proposed to assess bioimpedance, many instruments used in studies of living tissues characterization are commercial devices designed for the measurement of components or electronic circuits and therefore the measurement of biological tissues can be affected by electrical polarization. In order to test if electrical impedance spectroscopy may be helpful in providing further information about the structure and the properties of tissues, an impedance meter for living-tissues, able to avoid polarization, was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268701/dual-mode-cmos-analog-front-end-afe-for-electrical-impedance-spectroscopy-eis-systems
#10
Virgilio Valente, Dai Jiang, Andreas Demosthenous
This paper presents the operation of a dual-mode wideband CMOS analog front-end (AFE) for electrical impedance spectroscopy. The chip combines two current-readout (CR) channels and four voltage-readout (VR) channels suitable for both bipolar and tetrapolar EIS analysis. The chip addresses the need for flexible readout units for real-time simultaneous single-cell and large scale tissue/organ analysis. Postlayout simulations show that the VR channel is capable of wideband operation up to 12 MHz with noise floor as low as 16...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259478/comparison-of-equations-of-resting-and-total-energy-expenditure-in-peritoneal-dialysis-patients-using-body-composition-measurements-determined-by-multi-frequency-bioimpedance
#11
Sally El-Kateb, Sivakumar Sridharan, Ken Farrington, Stanley Fan, Andrew Davenport
BACKGROUND & AIMS: Waste products of metabolism accumulate in patients with kidney failure and it has been proposed that the amount of dialysis treatment patients require be adjusted for energy expenditure. This requires validation of methods to estimate energy expenditure in dialysis patients. METHODS: We compared values of resting energy expenditure (REE) estimated in peritoneal dialysis (PD) patients using a selection of available equations with estimates derived using a novel equation recently validated in chronic kidney disease patients (CKD equation)...
February 17, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28252570/potassium-channel-candidate-genes-predict-the-development-of-secondary-lymphedema-following-breast-cancer-surgery
#12
Betty Smoot, Kord M Kober, Steven M Paul, Jon D Levine, Gary Abrams, Judy Mastick, Kimberly Topp, Yvette P Conley, Christine A Miaskowski
BACKGROUND: Potassium (K) channels play an important role in lymph pump activity, lymph formation, lymph transport, and the functions of lymph nodes. No studies have examined the relationship between K channel candidate genes and the development of secondary lymphedema (LE). OBJECTIVE: The study purpose was to evaluate for differences in genotypic characteristics in women who did (n = 155) or did not (n = 387) develop upper extremity LE following breast cancer treatment based on an analysis of single-nucleotide polymorphisms (SNPs) and haplotypes in 10 K channel genes...
March 2017: Nursing Research
https://www.readbyqxmd.com/read/28244576/appendicular-lean-mass-and-mortality-among-prefrail-and-frail-older-adults
#13
J C Brown, M O Harhay, M N Harhay
OBJECTIVE: Prefrail and frail older adults are a heterogeneous population. The measurement of appendicular lean mass (ALM) may distinguish those at higher versus lower risk of poor outcomes. We examined the relationship between ALM and mortality among prefrail and frail older adults. DESIGN: This was a population-based cohort study. SETTING: The Third National Health and Nutrition Survey (NHANES III; 1988-1994). PARTICIPANTS: Older adults (age ≥65 years) with pre-frailty or frailty defined using the Fried criteria...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28242436/cardio-metabolic-profile-of-subjects-with-early-stages-of-glucose-intolerance-and-cardiovascular-autonomic-dysfunction
#14
Rumyana Dimova, Tsvetalina Tankova, Nevena Chakarova, Greta Grozeva, Lilia Dakovska
AIMS: The present study evaluates the cardio-metabolic profile of subjects with early stages of glucose intolerance and presence of cardiovascular autonomic dysfunction (CAD). MATERIALS AND METHODS: 478 subjects, of mean age 49.3±13.7years and mean BMI 31.0±6.2kg/m(2), divided according to glucose tolerance: 130 with normal glucose tolerance, 227 with prediabetes, and 121 with newly-diagnosed type 2 diabetes, were enrolled. Glucose tolerance was studied during OGTT applying 2006 WHO criteria...
February 16, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28239482/aggressive-clinical-approach-to-obesity-improves-metabolic-and-clinical-outcomes-and-can-prevent-bariatric-surgery-a-single-center-experience
#15
Flavio A Cadegiani, Gustavo C Diniz, Gabriella Alves
BACKGROUND: The number of bariatric procedures has exponentially increased in the past decade, as a result of the lack of successful clinical weight-loss interventions. The main reasons for the failure of clinical obesity management are: (1) anti-obesity medications are administered as monotherapies (or pre-combined drugs); (2) lack of combination between pharmacotherapy and non-pharmacological modalities; (3) short duration of pharmacotherapy for obesity; (4) lack of weight-loss maintenance strategies; (5) misunderstanding of the complex pathophysiology of obesity; and (6) underprescription of anti-obesity medications...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28227693/using-bioimpedance-spectroscopy-parameters-as-real-time-feedback-during-tdcs
#16
Isar Nejadgholi, Herschel Caytak, Miodrag Bolic, Isar Nejadgholi, Herschel Caytak, Miodrag Bolic, Isar Nejadgholi, Miodrag Bolic, Herschel Caytak
An exploratory analysis is carried out to investigate the feasibility of using BioImpedance Spectroscopy (BIS) parameters, measured on scalp, as real-time feedback during Transcranial Direct Current Stimulation (tDCS). TDCS is shown to be a potential treatment for neurological disorders. However, this technique is not considered as a reliable clinical treatment, due to the lack of a measurable indicator of treatment efficacy. Although the voltage that is applied on the head is very simple to measure during a tDCS session, changes of voltage are difficult to interpret in terms of variables that affect clinical outcome...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226982/measurement-of-electrical-impedance-in-different-ex-vivo-tissues
#17
Davide Meroni, Dario Bovio, Pietro A Frisoli, Andrea Aliverti, Davide Meroni, Dario Bovio, Pietro A Frisoli, Andrea Aliverti, Dario Bovio, Andrea Aliverti, Davide Meroni, Pietro A Frisoli
Bioimpedance allows living tissues characterization and detection of pathological states. Although in previous years several methods have been proposed to assess bioimpedance, many instruments used in studies of living tissues characterization are commercial devices designed for the measurement of components or electronic circuits and therefore the measurement of biological tissues can be affected by electrical polarization. In order to test if electrical impedance spectroscopy may be helpful in providing further information about the structure and the properties of tissues, an impedance meter for living-tissues, able to avoid polarization, was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226889/dual-mode-cmos-analog-front-end-afe-for-electrical-impedance-spectroscopy-eis-systems
#18
Virgilio Valente, Dai Jiang, Andreas Demosthenous, Virgilio Valente, Dai Jiang, Andreas Demosthenous, Dai Jiang, Andreas Demosthenous, Virgilio Valente
This paper presents the operation of a dual-mode wideband CMOS analog front-end (AFE) for electrical impedance spectroscopy. The chip combines two current-readout (CR) channels and four voltage-readout (VR) channels suitable for both bipolar and tetrapolar EIS analysis. The chip addresses the need for flexible readout units for real-time simultaneous single-cell and large scale tissue/organ analysis. Postlayout simulations show that the VR channel is capable of wideband operation up to 12 MHz with noise floor as low as 16...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224647/electrical-impedance-myography-eim-in-individuals-with-col6-and-lama2-congenital-muscular-dystrophy-a-cross-sectional-and-two-year-analysis
#19
Carmel Nichols, Minal S Jain, Katherine G Meilleur, Tianxia Wu, James Collins, Melissa R Waite, Jahannaz Dastgir, Anam Salman, Sandra Donkervoort, Tina Duong, Katherine Keller, Meganne E Leach, Donovan J Lott, Michelle N McGuire, Leslie Nelson, Anne Rutkowski, Carole Vuillerot, Carsten G Bönnemann, Tanya J Lehky
INTRODUCTION: Electrical impedance myography (EIM) is a non-invasive electrophysiological technique that characterizes muscle properties through bioimpedance. We compared EIM measurements to function, strength, and disease severity in a population with congenital muscular dystrophy (CMD). METHODS: Forty-one patients with CMD, either collagen 6 related disorders (COL6-RD) (n = 21) or laminin alpha 2-related disorders (LAMA2-RD) (n = 20) and 21 healthy pediatric controls underwent 2 yearly EIM exams...
February 22, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28209604/birth-size-risk-factors-across-life-and-cognition-in-late-life-protocol-of-prospective-longitudinal-follow-up-of-the-mynah-mysore-studies-of-natal-effects-on-ageing-and-health-cohort
#20
Murali Krishna, G Mohan Kumar, S R Veena, G V Krishnaveni, Kalyanaraman Kumaran, Samuel Christaprasad Karat, Patsy Coakley, Clive Osmond, John R M Copeland, Giriraj Chandak, Dattatray Bhat, Mathew Varghese, Martin Prince, Caroline Fall
INTRODUCTION: For late-life neurocognitive disorders, as for other late-life chronic diseases, much recent interest has focused on the possible relevance of Developmental Origins of Health and Disease (DOHaD). Programming by undernutrition in utero, followed by overnutrition in adult life may lead to an increased risk, possibly mediated through cardiovascular and metabolic pathways. This study will specifically examine, if lower birth weight is associated with poorer cognitive functioning in late life in a south Indian population...
February 16, 2017: BMJ Open
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