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Bioimpedance

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https://www.readbyqxmd.com/read/29677039/time-to-reconsider-the-role-of-relative-blood-volume-monitoring-for-fluid-management-in-hemodialysis
#1
David F Keane, Paul Baxter, Elizabeth Lindley, Laura Rhodes, Sue Pavitt
Relative blood volume (RBV) monitoring during hemodialysis has been used to help guide fluid management for decades, although with little supporting evidence. The technique relies on the assumption that variation in RBV during fluid removal reflects the capacity for vascular refilling and that efficient refilling is related to fluid overload. This study investigated the relationship between RBV variation and bioimpedance-based fluid overload in 47 patients on stable hemodialysis. Mean treatment ultrafiltration volume (UFV) was 1...
April 18, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29650264/diagnostic-accuracy-of-bioimpedance-spectroscopy-in-patients-with-lymphedema-a-retrospective-cohort-analysis
#2
Evelyn S Qin, Mindy J Bowen, Wei F Chen
BACKGROUND: Bioimpedance spectroscopy (BIS) is used by healthcare specialists to diagnose lymphedema. BIS measures limb fluid content by assessing tissue resistance to the flow of electric current. However, there is debate regarding the validity of BIS in diagnosing early lymphedema. Indocyanine green (ICG) lymphography has been established as the most accurate diagnostic modality to date for lymphedema diagnosis. In this retrospective study, we test the sensitivity, specificity, and diagnostic accuracy of BIS in diagnosing lymphedema by referencing its results with ICG lymphography...
April 9, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29649794/effects-of-volume-overload-and-current-techniques-for-the-assessment-of-fluid-status-in-patients-with-renal-disease
#3
Can Ekinci, Merve Karabork, Dimitrie Siriopol, Neris Dincer, Adrian Covic, Mehmet Kanbay
Volume overload is an important, may be the foremost, independent prognostic factor determining the outcome of hemodialysis patients. Therefore, it is crucial to measure fluid status of these patients and avoid volume overload. This review aims to evaluate volume overload, its effects on patients with renal diseases and current methodologies measuring volume status in the body. These techniques will be first classified as clinical evaluation and non-clinical and/or instrumental techniques, which includes biomarkers, ultrasonography, relative blood volume monitoring, bioimpedance, echocardiography, pulmonary artery catheterization, esophageal and/or suprasternal Doppler, and blood viscosity...
April 12, 2018: Blood Purification
https://www.readbyqxmd.com/read/29642725/comparison-of-methods-to-estimate-haemodialysis-urea-clearance
#4
Ahmed Mohamed, Andrew Davenport
INTRODUCTION: Dialysis adequacy is traditionally measured by monthly blood urea sampling and calculating sessional Kt/Vurea. Modern dialysis machines can estimate clearances each session, so we wished to compare online measurements with standard Kt/Vurea. METHODS: Urea clearance was estimated by intermittent changes in effective ionic dialysance and by continuous ultraviolet light absorption spent during the mid-week dialysis session. Total body water was calculated by the Watson equation and measured by multifrequency bioimpedance...
April 1, 2018: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29621026/fluid-status-assessment-in-hemodialysis-patients-and-the-association-with-outcome-review-of-recent-literature
#5
Marijke J E Dekker, Jeroen P Kooman
PURPOSE OF REVIEW: In this review, we will discuss the most recent literature regarding fluids status assessment in hemodialysis patients, and the associations with outcome. RECENT FINDINGS: Research toward technique-assisted assessment of fluid status in hemodialysis patients has been going on for many years. However, there is no absolute agreement between techniques, such as bioimpedance, lung ultrasound, biochemical markers or vena caval diameter, likely because they reflect different fluid compartments with potentially altered distribution in hemodialysis patients...
May 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29620449/low-lean-tissue-mass-can-be-a-predictor-of-one-year-survival-in-hemodialysis-patients
#6
Aleksandra Rymarz, Julia Gibińska, Maria Zajbt, Wiesław Piechota, Stanisław Niemczyk
PURPOSE: Nutritional status has a significant impact on the outcomes in the dialysis population. The aim of this study was to evaluate the association between body composition and a one-year survival of hemodialysis patients. METHODS: Forty-eight patients with chronic kidney disease stage V treated with hemodialysis for more than three months were included. Body composition was assessed by bioimpedance spectroscopy (Body Composition Monitor, Fresenius Medical Care)...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29615750/impact-of-systemic-volume-status-on-cardiac-magnetic-resonance-t1-mapping
#7
Marlies Antlanger, Stefan Aschauer, Andreas A Kammerlander, Franz Duca, Marcus D Säemann, Diana Bonderman, Julia Mascherbauer
Diffuse myocardial fibrosis is a key pathophysiologic feature in heart failure and can be quantified by cardiac magnetic resonance (CMR) T1 mapping. However, increases in myocardial free water also prolong native T1 times and may impact fibrosis quantification. Thus far, the impact of systemic patient volume status remains unclear. In this study, native T1 time by CMR was investigated in hemodialysis (HD) patients (n = 37) and compared with healthy controls (n = 35). Volume status was quantified by bioimpedance spectroscopy and correlated with CMR T1 time...
April 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29614968/biological-clocks-and-physical-functioning-in-monozygotic-female-twins
#8
Elina Sillanpää, Eija K Laakkonen, Elina Vaara, Taina Rantanen, Vuokko Kovanen, Sarianna Sipilä, Jaakko Kaprio, Miina Ollikainen
BACKGROUND: Biomarkers of biological aging - DNA methylation age (DNAm age) and leukocyte telomere length (LTL)- correlate strongly with chronological age across the life course. It is, however, unclear how these measures of cellular wear and tear are associated with muscle strength and functional capacity, which are known to decline with older age and are associated with mortality. We investigated if DNAm age and LTL were associated with body composition and physical functioning by examining 48 monozygotic twin sisters...
April 4, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29611250/differences-in-the-prevalence-of-sarcopenia-in-haemodialysis-patients-the-effects-of-gender-and-ethnicity
#9
S Yoowannakul, K Tangvoraphonkchai, S Vongsanim, A Mohamed, A Davenport
BACKGROUND: There is no universal consensus definition of sarcopenia, although there is agreement that sarcopenia is a risk factor for mortality in haemodialysis (HD) patients. We aimed to determine the effect of using different operational definitions in a multiracial group of HD patients. METHODS: We measured hand grip strength (HGS) and appendicular lean mass (ALM) by segmental bioimpedance using the Foundation for the National Institutes of Health Sarcopenia Project (FNIH), European Working Group on Sarcopenia (EWGS) and Asian Working Group on Sarcopenia definitions for HGS weakness and loss of appendicular lean mass...
April 2, 2018: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/29606996/structural-changes-of-subcutaneous-tissue-valued-by-ultrasonography-in-patients-with-cellulitis-following-treatment-with-the-pnkcelulitis-%C3%A2-program
#10
Esther Roe, Esther Serra, German Guzman, Ignacio Sajoux
Background: Poor eating habits, a sedentary lifestyle, and limited physical activity are predisposing factors for the development of cellulite. The PnKCelulitis® Programme (Pronokal Group, Barcelona, Spain) is a new approach to the treatment of cellulite that combines dietary guidelines, physical exercise, and the application of an anti-cellulite cream. Objective: We sought to objectively and via cutaneous ultrasound assess the benefit of the new multidisciplinary anti-cellulite treatment program and to evaluate any visual changes in the appearance of the skin...
March 2018: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29605765/resting-energy-expenditure-and-body-composition-in-patients-with-head-and-neck-cancer-an-observational-study-leading-to-a-new-predictive-equation
#11
Micheline Tereza Pires Souza, Pierre Singer, Gislaine Aparecida Ozorio, Vitor Modesto Rosa, Maria Manuela Ferreira Alves, Rossana Verónica Mendoza López, Dan L Waitzberg
OBJECTIVES: Patients with head and neck cancer have changes in body composition and resting energy expenditure (REE) related to significant inflammatory processes. We investigated REE and body composition in a population of patients with head and neck cancer, comparing the measured REE with predicted energy expenditure and deriving an equation of anthropometric values and body composition. METHODS: This retrospective, observational, descriptive study of a single center included patients with head and neck cancer...
February 5, 2018: Nutrition
https://www.readbyqxmd.com/read/29596717/influence-of-body-composition-and-nutrition-parameters-in-handgrip-strength-are-there-differences-by-sex-in-hemodialysis-patients
#12
Cristina Garagarza, Ana Laura Flores, Ana Valente
BACKGROUND: Hemodialysis (HD) patients are vulnerable to multiple metabolic and nutrition derangements, leading to changes in body composition. Handgrip strength (HGS) has been used as a nutrition marker. We aimed to evaluate the relationship between HGS and lean tissue mass (LTM) with several parameters in HD patients and develop HGS predictive equations. METHODS: Cross-sectional study with 155 patients in HD treatment for ≥3 months. Body composition was assessed through bioimpedance spectroscopy...
December 18, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/29596313/relationship-between-nutritional-status-and-gastrointestinal-symptoms-in-geriatric-patients-with-end-stage-renal-disease-on-dialysis
#13
Dinorah Carrera-Jiménez, Paola Miranda-Alatriste, Ximena Atilano-Carsi, Ricardo Correa-Rotter, Ángeles Espinosa-Cuevas
Gastrointestinal symptoms (GIS) are common in patients with end-stage renal disease (ESRD) and are associated with nutritional risks resulting from low food intake. Little is known about the relationship between GIS and malnutrition in geriatric patients with ESRD. The main objective of this study was to determine the relationship between nutritional status and severity of GIS in geriatric patients on dialysis therapy. Clinically-stable geriatric patients (older than 60 years old) who were dialysis outpatients were included in this cross-sectional study...
March 29, 2018: Nutrients
https://www.readbyqxmd.com/read/29590459/systemic-haemodynamics-in-haemodialysis-intradialytic-changes-and-prognostic-significance
#14
Stefanie Haag, Björn Friedrich, Andreas Peter, Hans-Ulrich Häring, Nils Heyne, Ferruh Artunc
Background: Although haemodialysis (HD) leads to alterations of systemic haemodynamics that can be monitored using dilution methods, there is a lack of data on the diagnostic and prognostic significance of haemodynamic monitoring during routine HD. Methods: In this multicentre study, we measured cardiac index (CI), access flow (AF) and central blood volume index (CBVI) during a single HD session in stable HD patients (n = 215) using the Transonic HD03 monitor (Transonic, Ithaca, NY, USA)...
March 26, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29584510/bioimpedance-vector-analysis-of-%C3%A3-lite-sub-%C3%A3-lite-and-low-level-male-volleyball-players
#15
Francesco Campa, Stefania Toselli
PURPOSE: The aim of this study was to establish a specific players profile on body composition (BC) parametres and to provide a data set of bioelectric impedances (BI) values for male volleyball players. METHODS: The study included 201 athletes (age: 26.1±5.4 yr, height: 191.9±9.7 cm, weight: 86.8±10.8 kg) registered in the Italian volleyball divisions. The athletes were divided into 3 groups: the élite group constituted of 75 players participating in the first (Super Lega) division...
March 27, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29576364/anthropometric-and-demographic-predictors-of-handgrip-strength-and-lean-mass-quality-in-hospitalized-individuals
#16
Luana T Rossato, Cinthia D Barbosa, Paula C Nahas, Fábio L Orsatti, Erick P de Oliveira
BACKGROUND AND AIM: Low strength and/or lean mass quality are associated with higher hospitalization and mortality. The aim of this study was to evaluate the main demographic and anthropometric predictors of strength and lean mass quality in hospitalized patients. METHODS: We evaluated 136 patients (18-86 years) of both sexes, admitted in a public hospital. Waist circumference (WC) was measured using an inelastic tape, lean mass (LM) was assessed by bioimpedance, and handgrip strength (HGS) was performed using a dynamometer...
April 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29576357/longitudinal-changes-in-phase-angle-by-bioimpedance-in-intensive-care-patients-differ-between-survivors-and-non-survivors
#17
L H Ellegård, P Petersen, L Öhrn, I Bosaeus
BACKGROUND & AIMS: Intensive care (ICU) patients suffer from metabolic stress, creating a catabolic state which might disturb nutritional status and body composition. Alterations in body fluid compartments by disease or massive volume resuscitation could invalidate bioimpedance hydrometry. Still bioimpedance might give other information. METHODS: 52 ICU patients (35 male, 17 female, mean age 66 years), BMI 29,2 were assessed by bioimpedance spectroscopy. Phase angle (PhA) at 50 kHz was assessed...
April 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29565159/correlation-between-skinfold-thickness-and-bioelectrical-impedance-analysis-for-the-evaluation-of-body-composition-in-patients-on-dialysis
#18
Ana Laura Flores-García, Carmen Alicia Sánchez-Ramírez, Óscar Alberto Newton-Sánchez, Fabián Rojas-Larios
INTRODUCTION: Patients on dialysis have important changes in body composition. OBJECTIVES: To determine the correlation between skinfold thickness (SKF) and bioimpedance analysis (BIA) for estimating fat mass (FM) and lean body mass (LBM) in patients undergoing hemodialysis (HD) and peritoneal dialysis (PD). METHODS: Cross-sectional study. We included 50 patients under dialysis treatment. To measure SKF, we used the Lange® skinfold caliper (Beta Technology, California, USA) and we carried out the impedance analysis with the Bodystat Quadscan 4000® (Quadscan, Isle of Man, UK)...
January 10, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29564997/effect-of-the-physical-activity-program-on-the-treatment-of-resistant-hypertension-in-primary-care
#19
Piotr J Kruk, Michał Nowicki
BACKGROUND: Regular physical activity is widely recommended for patients with arterial hypertension as an essential component of lifestyle modification. Much less is known about the impact of physical exercise on the management of treatment of resistant hypertension (RH). The aim was to assess the effect of physical activity program intensified by mobile phone text reminders on blood pressure control in subjects with RH managed in the primary care. METHODS: In total, 53 patients with primary hypertension were qualified, including 27 who met the criteria for RH and 26 with well-controlled hypertension (WCH)...
March 22, 2018: Primary Health Care Research & Development
https://www.readbyqxmd.com/read/29561971/bioimpedance-new-approach-to-non-invasive-detection-of-liver-fibrosis-a-pilot-study
#20
Daniel Ianni Filho, Ilka de Fatima Santana Ferreira Boin, Ademar Yamanaka
BACKGROUND: Fibrosis are common structural hepatic change in patients with chronic hepatitis. Liver biopsy is the gold standard for determining the extent of liver fibrosis. Considering the technical difficulties and cost, improvements in non-invasive screening tools are greatly needed. Bioimpedance have been shown to be safe to evaluate tissue fibrosis. OBJECTIVE: To assess the utility of using monofrequential bipolar bioimpedance for the detection of severity of liver fibrosis consistent with chronic viral hepatitis C infections...
January 2018: Arquivos de Gastroenterologia
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