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Bioimpedence

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https://www.readbyqxmd.com/read/28918423/non-discriminant-relationships-between-leg-muscle-strength-mass-and-gait-performance-in-healthy-young-and-old-adults
#1
Thomas Muehlbauer, Urs Granacher, Ron Borde, Tibor Hortobágyi
BACKGROUND: Gait speed declines with increasing age, but it is unclear if gait speed preferentially correlates with leg muscle strength or mass. OBJECTIVE: We determined the relationship between gait speed and (1) leg muscle strength measured at 3 lower extremity joints and (2) leg lean tissue mass (LTM) in healthy young (age: 25 years, n = 20) and old (age: 70 years, n = 20) adults. METHODS: Subjects were tested for maximal isokinetic hip, knee, and ankle extension torque, leg LTM by bioimpedance, and gait performance (i...
September 16, 2017: Gerontology
https://www.readbyqxmd.com/read/28918171/the-association-between-delirium-and-sarcopenia-in-older-adult-patients-admitted-to-acute-geriatrics-units-results-from-the-glisten-multicenter-observational-study
#2
Giuseppe Bellelli, Antonella Zambon, Stefano Volpato, Pasquale Abete, Lara Bianchi, Mario Bo, Antonio Cherubini, Francesco Corica, Mauro Di Bari, Marcello Maggio, Giovanna Maria Manca, Maria Rosaria Rizzo, Andrea Rossi, Francesco Landi
BACKGROUND & AIMS: To date, studies assessing the relationship between sarcopenia and delirium, two of the most common geriatric syndromes, are lacking. We sought to explore this association by investigating the co-occurrence of these two conditions and the independent association between them in a population of hospitalized older adults. METHODS: Cross-sectional multicenter analysis of older adults consecutively admitted to 12 acute geriatric units (AGUs). Sarcopenia was assessed upon admission by evaluating the presence of low skeletal mass index (kg/m(2)), and either low handgrip strength or low walking speed (European Working Group on Sarcopenia in Older People, EWGSOP criteria)...
September 5, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28904881/numerical-expression-of-volume-status-using-the-bioimpedance-ratio-in-continuous-ambulatory-peritoneal-dialysis-patients-a-pilot-study
#3
Mun Jang, Won Hak Kim, Jung Hee Lee, Mi Soon Kim, Eun Kyoung Lee, So Mi Kim, Jai Won Chang
BACKGROUND: Volume overload results in higher mortality rates in patients on continuous ambulatory peritoneal dialysis (CAPD). The ratio of bioimpedance (RBI) might be a helpful parameter in adjusting dry body weight in CAPD patients. This study examined whether it is possible to distinguish between non-hypervolemic status and hypervolemic status in CAPD patients by using only RBI. METHODS: RBI was calculated as follows: RBI = impedance at 50 kHz/impedance at 500 kHz...
September 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28902883/association-between-e-e%C3%A2-ratio-and-fluid-overload-in-patients-with-predialysis-chronic-kidney-disease
#4
Jae-Seok Kim, Jae-Won Yang, Jin Sae Yoo, Seung Ok Choi, Byoung-Geun Han
BACKGROUND: Chronic fluid overload is common in patients with chronic kidney disease (CKD) and can with time lead to diastolic dysfunction and heart failure. We investigated whether markers of fluid status, such as NT-proBNP and bioimpedance spectroscopy (BIS), can predict echocardiographic findings of diastolic dysfunction in non-dialysis CKD5 patients. METHODS: BIS, echocardiography, and measurement of serum NT-proBNP were performed in patients with non-dialysis CKD stage 5 at a single study visit...
2017: PloS One
https://www.readbyqxmd.com/read/28901331/raw-bia-variables-are-predictors-of-muscle-strength-in-patients-with-chronic-obstructive-pulmonary-disease
#5
F de Blasio, M G Santaniello, F de Blasio, G Mazzarella, A Bianco, L Lionetti, F M E Franssen, L Scalfi
BACKGROUND/OBJECTIVES: Although loss of fat-free mass (FFM) and reduced muscle strength are highly prevalent in chronic obstructive pulmonary disease (COPD), only few data are available on the relationships of handgrip strength (HGS) and respiratory muscle strength with body composition in such disease. In particular, we aimed to assess whether raw bioelectrical impedance (BIA) variables were independent predictors of muscle strength in COPD patients, possibly more significant than anthropometric variables and BIA-based estimates of FFM...
September 13, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28894359/analysis-of-the-dynamics-of-venous-blood-flow-in-the-context-of-lower-limb-temperature-distribution-and-tissue-composition-in-the-elderly
#6
Aleksandra Skomudek, Iwona Gilowska, Ryszard Jasiński, Krystyna Rożek-Piechura
OBJECTIVE: The elderly are particularly vulnerable to degenerative diseases, such as circulatory and respiratory system and vascular system diseases. The objective of this study was therefore to evaluate the distribution of temperature and the dynamics of venous blood flow in the lower limbs (LLs) and to assess the interdependence of these parameters in terms of the somatic components in males and females participating in activities at the University of the Third Age. MATERIALS AND METHODS: The study included 60 females (mean age 67...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28883854/predictive-abilities-of-baseline-measurements-of-fluid-overload-assessed-by-bioimpedance-spectroscopy-and-serum-n-terminal-pro-b-type-natriuretic-peptide-for-mortality-in-hemodialysis-patients
#7
Ianis Siriopol, Dimitrie Siriopol, Luminita Voroneanu, Adrian Covic
INTRODUCTION: Fluid overload is one of the most important, yet modifiable, risk factors associated with worse outcomes in hemodialysis (HD) patients. However, its precise assessment in clinical practice is still under investigation. MATERIAL AND METHODS: This is an observational prospective study which included 285 stable patients with end-stage renal disease on standard thrice-weekly HD therapy. Overhydration was assessed by the combination of relative fluid overload (RFO), using bioimpedance spectroscopy, and N-terminal pro-B-type natriuretic peptide (NT-proBNP)...
August 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28880731/reference-ranges-using-bioimpedance-for-detection-of-lymphedema-in-chinese-women
#8
Hewei Wang, Ding Li, Jiang Liuya, Elizabeth S Dylke, Leigh C Ward, Jie Jia, Sharon L Kilbreath
BACKGROUND: Bioimpedance is a commonly used technique for detection of early lymphedema. The thresholds used for detection are based on impedance measurements obtained in Western populations. It is unknown whether these thresholds are applicable to a Chinese population. METHODS AND RESULTS: Impedance measurements were obtained for both arms in 391 women, ranging in age from 20 to 84 years, using a standardized protocol. Frequency distributions of interlimb impedance arm ratios for both dominant:non-dominant and non-dominant:dominant were used to determine thresholds at two and three standard deviations (SDs) above the mean...
September 7, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28872392/the-relation-of-physical-activity-sedentary-behaviors-and-academic-achievement-are-mediated-by-fitness-and-bedtime
#9
Heidi J Syväoja, Anna Kankaanpää, Jouni Kallio, Harto Hakonen, Janne Santeri Kulmala, Charles H Hillman, Anu-Katriina Pesonen, Tuija Tammelin
BACKGROUND: This study investigated the associations of subjectively and objectively measured physical activity (PA) and sedentary behavior with academic achievement. We further examined whether aerobic fitness, obesity, and bedtime mediate these associations. METHODS: This study included 970 children aged 9-15 (52.3% girls) from nine schools throughout Finland. Register-based academic achievement (grade point average [GPA]) as well as self-reported and accelerometer-measured PA/sedentary behavior were assessed during spring 2013...
September 5, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28871791/real-time-bioimpedance-sensing-of-antifibrotic-drug-action-in-primary-human-cells
#10
Maryam Parviz, Priyanka Toshniwal, Helena Viola, Livia C Hool, P Mark W Fear, Fiona Wood, Katharina Gaus, K Swaminathan Iyer, John Justin Gooding
Fibrotic diseases are among the most serious health issues with severe burdens due to their chronic nature and a large number of patients suffering from the debilitating effects and long-term sequelae. Collagenase treatment is a non-surgical option but has limited results. To date, there is no potent non-invasive solution for fibrosis. Part of the reason for this is the lack of appropriate in vitro live cell screening tools to assess the efficacy of new therapeutical agents. Here, we demonstrate the utility of a cell-based electrochemical impedance biosensor platform to screen the efficacy of potential antifibrotic compounds...
September 5, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28870484/higher-protein-intake-is-associated-with-improved-muscle-strength-in-elite-senior-athletes
#11
Filippo Giorgio Di Girolamo, Roberta Situlin, Nicola Fiotti, Marcello Tence, Paolo De Colle, Filippo Mearelli, Marco Alessandro Minetto, Ezio Ghigo, Massimo Pagani, Daniela Lucini, Fabio Pigozzi, Piero Portincasa, Gabriele Toigo, Gianni Biolo
OBJECTIVE: The optimal protein intake for elderly individuals who exercise regularly has not yet been clearly defined. The aim of this study was to test the hypothesis that protein intake level is associated with muscle strength in elderly elite athletes. METHODS: We evaluated 50 elite senior athletes (38 men and 12 women) participating in the European Master Games 2011 in an observational cross-sectional study. Participants were divided into two groups-lower (LPI) or higher (HPI) protein intake-according to the median value of their ratio of urinary urea nitrogen to urinary creatinine (i...
October 2017: Nutrition
https://www.readbyqxmd.com/read/28869934/typical-hemodialysis-in-india-a-case-report
#12
Georgi Abraham, Madhusudan Vijayan, Milly Mathew
We report here a typical case of a patient on hemodialysis (HD) for end-stage renal disease (ESRD) in India that highlights some of the management issues encountered in a country with an enormous burden of ESRD and major challenges of underdialysis and management of comorbidities. The patient, a 42-year-old multiparous woman with chronic kidney disease (CKD) stage V, type 2 diabetes mellitus, and hypertension is a homemaker from a middle-class family, living in a large city, with no family history of CKD. From May 2013 to December 2016, she has been receiving twice-weekly maintenance HD for 4 h (intermittent HD); access was via an internal jugular line initially and then via a left brachiocephalic arteriovenous fistula (AVF) from late June 2013...
2017: Blood Purification
https://www.readbyqxmd.com/read/28859364/impact-of-supplemental-home-enteral-feeding-postesophagectomy-on-nutrition-body-composition-quality-of-life-and-patient-satisfaction
#13
C L Donohoe, L A Healy, M Fanning, S L Doyle, A Mc Hugh, J Moore, N Ravi, J V Reynolds
The aim of this prospective cohort study is to analyze the impact of supplemental home enteral nutrition (HEN) post-esophageal cancer surgery on nutritional parameters, quality of life (QL), and patient satisfaction. A systematic review reported that over 60% of patients lose >10% of both body weight and BMI by 6 months after esophagectomy. Enteral feeding (EF) is increasingly a modern standard postoperatively; however, the impact of extended HEN postdischarge has not been systematically studied. One hundred forty-nine consecutive patients [mean age 62 ± 9, 80% male,76% adenocarcinoma, 66% on multimodal protocols, and 69% with BMI ≥ 25 kg/m2] were studied...
September 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28854446/the-hemodynamics-of-labor-in-women-undergoing-vaginal-and-cesarean-deliveries-as-determined-by-whole-body-bioimpedance
#14
Eran Ashwal, Shiri Shinar, Sharon Orbach-Zinger, Shaul Lev, Roi Gat, Liron Kedar, Yehuda Pauzner, Amir Aviram, Yariv Yogev, Liran Hiersch
No abstract text is available yet for this article.
August 30, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28852206/do-gender-and-ethnic-differences-in-fasting-leptin-in-indians-and-creoles-of-mauritius-persist-beyond-differences-in-adiposity
#15
S Hunma, H Ramuth, J L Miles-Chan, Y Schutz, J-P Montani, N Joonas, A G Dulloo
Recent body composition studies on the island of Mauritius in young adults belonging to the two main ethnicities-Indians (South Asian descent) and Creoles (African/Malagasy descent)-have shown gender-specific ethnic differences in their body mass index (BMI)-Fat% relationships. We investigated here whether potential gender and ethnic differences in blood leptin would persist beyond that explained by differences in body composition. In healthy young adult Mauritian Indians and Creoles (79 men and 80 women; BMI range:15-41 kg/m(2)), we investigated the relationships between fasted serum leptin with BMI, waist circumference (WC), total fat% assessed by deuterium oxide dilution technique and central adiposity (trunk fat%) assessed by abdominal bioimpedance analysis...
August 30, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28851933/intravenous-fluid-challenge-decreases-intracellular-volume-a-bioimpedance-spectroscopy-based-crossover-study-in-healthy-volunteers
#16
Matthäus Ernstbrunner, Barbara Kabon, Oliver Zotti, Markus Zeitlinger, Carolin Berner, Georg Hinterholzer, Marcus Säemann, Florian Frommlet, Edith Fleischmann, Manfred Hecking
The effects of intravenous fluid therapy on fluid compartments and hemodynamics of the human body remain enigmatic. We therefore tested the efficacy of bioimpedance spectroscopy in a crossover study, where 15 males received 0.5 ml/kg/min ELO-MEL-isoton (osmolarity = 302 mosmol/l) during 60 minutes, or nothing at all. In group "Fluid", fluid load increased from -0.2 ± 1.0 l extracellular volume at baseline to its maximum of 1.0 ± 0.9 l in minute 70, and remained continuously elevated throughout minute 300...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28834362/is-high-volume-online-hemodiafiltration-associated-with-malnutrition
#17
Nicolás Macías, Almudena Vega, Soraya Abad, Alba Santos, Santiago Cedeño, Tania Linares, Ana María García-Prieto, Inés Aragoncillo, Claudia Yuste, Juan Manuel López-Gómez
Chronic malnutrition is a common problem in patients with end-stage renal disease on hemodialysis. Some studies have reported albumin loss into dialysis fluid during postdilution online hemodiafiltration (OL-HDF). The aim of the study was to assess the nutritional status of patients on high-volume OL-HDF and to demonstrate that higher convective clearances are not associated with malnutrition due to possible loss of nutrients with ultrafiltration. Demographic and clinical data, corporal composition with bioimpedance spectroscopy, dialysis features, albumin loss into dialysis fluid and laboratory parameters were collected in twenty-eight patients with ESRD undergoing postdilution OL-HDF with stable convective volumes over 28 L/session...
August 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28833859/supraventricular-tachycardia-pregnancy-and-water-a-new-insight-in-lifesaving-treatment-of-rhythm-disorders
#18
Francesco Massari, Pietro Scicchitano, Angela Potenza, Marco Sassara, Mariella Sanasi, Mariarosa Liccese, Marco Matteo Ciccone, Pasquale Caldarola
Pregnancy may predispose to paroxysmal supraventricular tachycardia (SVT), in subjects with or without identifiable heart disease. Many physiological conditions such as autonomic nervous system changes, altered systemic hemodynamics, etc. can contribute to the onset of arrhythmias during pregnancy. Some cases reported the occurrence of arrhythmias in relation to systemic fluid variations. We report the case of a pregnant woman who experienced SVT due to fluid depletion, detected by bioimpedance vector analysis (BIVA), which was successfully treated by water repletion under tight BIVA monitoring...
August 19, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28833720/near-field-impedance-accurately-distinguishes-among-pericardial-intracavitary-and-anterior-mediastinal-position
#19
David A Burkland, Anand V Ganapathy, Mathews John, Brian D Greet, Mohammad Saeed, Abdi Rasekh, Mehdi Razavi
INTRODUCTION: Epicardial catheter ablation is increasingly used to treat arrhythmias with an epicardial component. Nevertheless, percutaneous epicardial access remains associated with a significant risk of major complications. Developing a technology capable of confirming proper placement within the pericardial space could decrease complication rates. The purpose of this study was to examine differences in bioimpedance among the pericardial space, anterior mediastinum, and right ventricle...
August 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28831752/longitudinal-assessment-of-the-effect-of-atrasentan-on-thoracic-bioimpedance-in-diabetic-nephropathy-a-randomized-double-blind-placebo-controlled-trial
#20
David J Webb, Blai Coll, Hiddo J L Heerspink, Dennis Andress, Yili Pritchett, John J Brennan, Mark Houser, Ricardo Correa-Rotter, Donald Kohan, Hirofumi Makino, Vlado Perkovic, Giuseppe Remuzzi, Sheldon W Tobe, Robert Toto, Robert Busch, Pablo Pergola, Hans-Henrik Parving, Dick de Zeeuw
BACKGROUND: Fluid retention is a common adverse event in patients who receive endothelin (ET) receptor antagonist therapy, including the highly selective ETA receptor antagonist, atrasentan. OBJECTIVE: We performed longitudinal assessments of thoracic bioimpedance in patients with type 2 diabetes mellitus and nephropathy to determine whether a decrease in bioimpedance accurately reflected fluid retention during treatment with atrasentan. STUDY DESIGN: We conducted a randomized, double-blind, placebo-controlled study in 48 patients with type 2 diabetes mellitus and nephropathy who were receiving stable doses of renin angiotensin system inhibitors and diuretics...
August 22, 2017: Drugs in R&D
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