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Bioimpedance tools monitoring

Marta Arias-Guillén, Eduardo Perez, Patricia Herrera, Bárbara Romano, Raquel Ojeda, Manel Vera, José Ríos, Néstor Fontseré, Francisco Maduell
OBJECTIVES: To evaluate whether body composition monitor (BCM) could be a practical instrument for nephrologists to assess nutritional status in patients on hemodialysis (HD) and whether it is more effective in identifying patients at highest risk of developing protein-energy wasting (PEW) alone or in combination with other tools currently used for that purpose. DESIGN: Observational cross-sectional study in 91 HD patients (60 ± 14 years, 70.3% male, 24 ± 4...
April 21, 2018: Journal of Renal Nutrition
Frederic Michard
Smartphones and electronic tablets (e-tablets) have become ubiquitous devices. Their ease of use, smartness, accessibility, mobility and connectivity create unique opportunities to improve quality of surgical care from prehabilitation to rehabilitation. Before surgery, digital applications (Apps), serious games and text messaging may help for a better control of risk factors (hypertension, overweight), for smoking cessation, and for optimizing adherence to preoperative recommendations (e.g., regarding anticoagulation or antihypertensive treatments)...
October 2017: Korean Journal of Anesthesiology
Maryam Parviz, Priyanka Toshniwal, Helena M Viola, Livia C Hool, P Mark W Fear, Fiona M Wood, Katharina Gaus, K Swaminathan Iyer, J 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 nonsurgical option but has limited results. To date, there is no potent noninvasive 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...
October 27, 2017: ACS Sensors
Levi M Teigen, Adam J Kuchnia, Marina Mourtzakis, Carrie P Earthman
Assessment of body composition, both at single time points and longitudinally, is particularly important in clinical nutrition practice. It provides a means for the clinician to characterize nutrition status at a single time point, aiding in the identification and diagnosis of malnutrition, and to monitor changes over time by providing real-time information on the adequacy of nutrition interventions. Objective body composition measurement tools are available clinically but are often underused in nutrition care, particularly in the United States...
November 9, 2016: Nutrition in Clinical Practice
Adam J Kuchnia, Levi M Teigen, Abigail J Cole, Urvashi Mulasi, M Cristina Gonzalez, Steven B Heymsfield, David M Vock, Carrie P Earthman
BACKGROUND: Raw bioimpedance parameters (eg, 50-kHz phase angle [PA] and 200-kHz/5-kHz impedance ratio [IR]) have been investigated as predictors of nutrition status and/or clinical outcomes. However, their validity as prognostic measures depends on the availability of appropriate reference data. Using a large and ethnically diverse data set, we aimed to determine if ethnicity influences these measures and provide expanded bioimpedance reference data for the U.S. POPULATION: HASH(0x3a74658) METHODS: The National Health and Nutrition Examination Survey (NHANES) is an ongoing compilation of studies conducted by the U...
September 26, 2016: JPEN. Journal of Parenteral and Enteral Nutrition
Paik Seong Lim, Chang Hsu Chen, Fansan Zhu, Peter Kotanko, Yachung Jeng, Chun Yu Hu, Li Shu Chiu, Hui-Chen Chang
OBJECTIVE: Obesity is becoming increasingly common in hemodialysis (HD) patients and is associated with inflammation and increased mortality. The primary aim of the present study was to evaluate the accuracy and variability of the bioimpedance device in measuring body fat in Taiwanese dialysis patients. DESIGN: Cross-sectional study. SUBJECTS: One hundred twenty-two adult patients receiving HD in a single hospital in Taiwan. SETTING: We compared the results of fat mass (FM) measured by dual-energy x-ray absorptiometry (DEXA) and bioelectrical impedance spectroscopy device (Body composition monitor, BCM)...
January 2017: Journal of Renal Nutrition
Muzamil Olamide Hassan, Raquel Duarte, Therese Dix-Peek, Ahmed Vachiat, Caroline Dickens, Sacha Grinter, Sagren Naidoo, Pravin Manga, Saraladevi Naicker
BACKGROUND: Fluid retention occurs early in chronic kidney disease (CKD) resulting in increased cardiovascular morbidity and mortality. This study aimed to assess volume and nutritional status among South African CKD participants and determine the relationship between malnutrition, inflammation, atherosclerosis, and volume overload using a body composition monitor (BCM). We also evaluated the usefulness of BCM measurement in assessing volume overload. METHODS: 160 participants comprising hemodialysis, peritoneal dialysis, stage 3 CKD patients, and healthy controls (40 in each group) were studied...
July 2016: Clinical Nephrology
Amara Callistus Nwosu, Lauren Morris, Catriona Mayland, Stephen Mason, Andrew Pettitt, John Ellershaw
Polyneuropathy, organomegaly, endocrinopathy, M-protein and skin changes (POEMS) syndrome is a rare paraneoplastic disorder associated with an underlying plasma cell dyscrasia and multiorgan failure. POEMS syndrome is potentially fatal and adversely affects quality of life. Oedema is common with many patients affected by pleural effusions, ascites and lower limb oedema. Bioelectrical impedance vector analysis (BIVA) is a non-invasive assessment tool, which enables rapid bedside assessments of nutrition and hydration...
September 2016: BMJ Supportive & Palliative Care
Mohamad H Tiba, Barry Belmont, Michael Heung, Nik Theyyunni, Robert D Huang, Christopher M Fung, Amanda J Pennington, Brandon C Cummings, Gerard T Draucker, Albert J Shih, Kevin R Ward
Assessment of volume status in critically ill patients poses a challenge to clinicians. Measuring changes in the inferior vena cava (IVC) diameter using ultrasound is becoming a standard tool to assess volume status. Ultrasound requires physicians with significant training and specialized expensive equipment. It would be of significant value to be able to obtain this measurement continuously without physician presence. We hypothesize that dynamic changes in limb's bioimpedance in response to respiration could be used to predict changes in IVC...
July 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Seyed Reza Atefi, Fernando Seoane, Shervin Kamalian, Eric S Rosenthal, Michael H Lev, Giorgio Bonmassar
PURPOSE: Current diagnostic neuroimaging for detection of intracranial hemorrhage (ICH) is limited to fixed scanners requiring patient transport and extensive infrastructure support. ICH diagnosis would therefore benefit from a portable diagnostic technology, such as electrical bioimpedance (EBI). Through simulations and patient observation, the authors assessed the influence of unilateral ICH hematomas on quasisymmetric scalp potential distributions in order to establish the feasibility of EBI technology as a potential tool for early diagnosis...
February 2016: Medical Physics
Michael A Garfinkle, James Barton
BACKGROUND: The diagnostic strength of the jugular venous pressure (JVP) and pedal edema as physical examination tools for the assessment of volume status has been minimally studied. METHODS: We conducted a prospective observational study in an outpatient peritoneal dialysis clinic in Saskatoon, Canada. Patients were adult (age 18 or older) peritoneal dialysis outpatients without any history of cardiac dysfunction, a central line, and current arteriovenous fistula...
2016: Canadian Journal of Kidney Health and Disease
Naho Kurasawa, Takefumi Mori, Eri Naganuma, Emiko Sato, Kenji Koizumi, Shinichi Sato, Ikuko Oba, Mihoko Tsuchikawa, Sadayoshi Ito
Home blood pressure (HBP) is an independent predictor of cardiovascular and renal function. However, no particular guidelines have been established for optimal HBP in peritoneal dialysis (PD) patients. Bioelectrical impedance analysis (BIA) is a beneficial tool for determining body composition. In the present study, we used BIA to determine body composition parameters that might play a role in the regulation of HBP in PD patients, and we compared HBP with office blood pressure (BP). Our study enrolled 15 patients (11 men, 4 women) receiving PD at Tohoku University Hospital, who, for 1 year, agreed to monitor HBP and to undergo body composition analysis...
2015: Advances in Peritoneal Dialysis
Catarina N Matias, Cristina P Monteiro, Diana A Santos, Fátima Martins, Analiza M Silva, Maria J Laires, Luís B Sardinha
Adequate magnesium (Mg) levels play a vital role in membrane excitability, cell contractility and metabolism, being a key nutrient for sustaining appropriate muscular contraction and performance levels in athletes. Phase angle (PhA), assessed by bioimpedance analysis (BIA), has been reported to be positively associated with most nutritional markers and is an indicator of membrane integrity and water distribution between intra- and extracellular spaces. The aim of the present study was to verify the association between Mg status and PhA as a predictor of cellular health, in a sample of judo athletes from a period of weight stability to prior to competition...
July 2015: Magnesium Research: Official Organ of the International Society for the Development of Research on Magnesium
Ximena Atilano-Carsi, José Luis Miguel, Jorge Martínez Ara, Rafael Sánchez Villanueva, Elena González García, Rafael Selgas Gutiérrez
BACKGROUND AND OBJECTIVE: Overhydration in hemodialysis patients is associated with cardiovascular mortality. Adequate removal of liquids and achievement of dry weight is one of the main goals of therapy. So far there are no clinical or laboratory parameters that are reliable, simple and affordable for its determination. The bioelectrical impedance vector analysis (BIVE) is a tool that allows identifying and monitoring hydration status, so the aim of this study was to use BIVE to adjust the intensity of ultrafiltration and achieve dry weight in hemodialysis patients...
May 1, 2015: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Adrian Paul Harrison, Vibeke Sødring Elbrønd, Kiwa Riis-Olesen, Else Marie Bartels
Multi-frequency BIA (mfBIA) equipment has been shown to be a non-invasive and reliable method to assess a muscle as a whole or at fibre level. In the equine world this may be the future method of assessment of training condition or of muscle injury. The aim of this study was to test if mfBIA reliably can be used to assess the condition of a horse's muscles in connection with health assessment, injury and both training and re-training. mfBIA measurements was carried out on 10 'hobby' horses and 5 selected cases with known anamnesis...
March 2015: Physiological Measurement
B Saugel, M Cecconi, J Y Wagner, D A Reuter
The determination of blood flow, i.e. cardiac output, is an integral part of haemodynamic monitoring. This is a review on noninvasive continuous cardiac output monitoring in perioperative and intensive care medicine. We present the underlying principles and validation data of the following technologies: thoracic electrical bioimpedance, thoracic bioreactance, vascular unloading technique, pulse wave transit time, and radial artery applanation tonometry. According to clinical studies, these technologies are capable of providing cardiac output readings noninvasively and continuously...
April 2015: British Journal of Anaesthesia
Samer R Abbas, Fansan Zhu, Nathan W Levin
Bioimpedance (BI) techniques for measuring normal hydration status (NHS) can be generally classified as (1) by frequency as single frequency at 50 kHz, BI analysis, and multifrequency BI spectroscopy and (2) by method as whole body (wrist to ankle) measurement and calf BI spectroscopy. The aim of this article was to review current BI methods for clinical practice in patients with end-stage of kidney disease. BI vector analysis using whole-body single-frequency BI at 50 kHz may be useful for population studies to indicate a range of degree of fluid loading and of nutritional status...
March 2015: Journal of Renal Nutrition
Joachim Kron, Daniel Schneditz, Til Leimbach, Sabine Aign, Susanne Kron
BACKGROUND: We developed a simple method to determine the absolute blood volume (V) during hemodialysis in everyday clinical practice and examined its relationship with volume overload, clinical relevance, and accuracy. METHODS: The increase in relative blood volume (RBVpost - RBVpre) measured before and after infusion of 240 ml of ultra-pure dialysate using the bolus function of a commercial online hemodiafiltration machine incorporating a relative blood volume monitor was applied to determine absolute blood volume...
2014: Blood Purification
Natascha J H Broers, Remy J H Martens, Tom Cornelis, Nanda M P Diederen, Peter Wabel, Frank M van der Sande, Karel M L Leunissen, Jeroen P Kooman
OBJECTIVES: The assessment of body composition (BC) in dialysis patients is of clinical importance given its role in the diagnosis of malnutrition and sarcopenia. Bioimpedance techniques routinely express BC as a 2-compartment (2-C) model distinguishing fat mass (FM) and fat-free mass (FFM), which may be influenced by the hydration of adipose tissue and fluid overload (OH). Recently, the BC monitor was introduced which applies a 3-compartment (3-C) model, distinguishing OH, adipose tissue mass, and lean tissue mass...
March 2015: Journal of Renal Nutrition
Constantine Tsigos, Charikleia Stefanaki, George I Lambrou, Dario Boschiero, George P Chrousos
BACKGROUND: This large cross-sectional, multi-centre study evaluated the association of body composition measurements by a novel dual frequency bioimpedance device (BIA-ACC) with chronic stress/inflammation biomarkers and the presence of medically unexplained symptoms (MUS). MATERIALS AND METHODS: Participants were adult Caucasians of both sexes and included 10,416 lean subjects with no MUS (Group A), 58,710 lean subjects with MUS (Group B) and 30,445 overweight/obese subjects with no MUS and excessive fat mass (FM) (Group C)...
February 2015: European Journal of Clinical Investigation
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