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Bioimpedance analysis

Renata Rubinsztajn, Tadeusz Przybyłowski, Marta Maskey-Warzęchowska, Krzysztof Karwat, Ryszarda Chazan
: Body composition disorders are observed in chronic obstructive pulmonary disease (COPD) patients and have a significant impact the general condition and outcome in this disease. AIM: The aim of the study was to assess body composition in relation to airway obstruction severity in patients with COPD. MATERIALS AND METHODS: The study group consisted of 143 patients (58F, 85M) in the middle age The group was divided to two groups: group A FEV1<50% predicted and group B FEV1 ≥50% predicted; both groups were compared...
October 19, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
Chang Amber Liu, Jinghu Sui, Charles J Coté, Thomas A Anderson
BACKGROUND AND OBJECTIVES: Caudal anesthesia is a common and effective regional anesthesia technique in pediatric patients. The addition of epinephrine to local anesthetics in caudal anesthesia is a frequent practice; however, changes in hemodynamic and cardiac parameters produced by epinephrine in caudal anesthesia are not well studied. Using data collected with the ICON noninvasive cardiac output monitor, we examined the hemodynamic changes associated with the administration of epinephrine containing local anesthetics during caudal anesthesia in children...
October 11, 2016: Regional Anesthesia and Pain Medicine
Ma Paz Redondo-Del-Río, Ma Alicia Camina-Martín, Laura Moya-Gago, Sandra de-la-Cruz-Marcos, Vincenzo Malafarina, Beatriz de-Mateo-Silleras
OBJECTIVE: To compare body composition as assessed by conventional and vector bioelectrical impedance analysis according to the nutritional cataloging using body mass index (BMI) in a group of institutionalized elderly. METHODS: Cross-sectional study in 38 institutionalized elderly. Body composition was estimated by bioimpedance analysis. Differences in body composition were analyzed using t-test and ANOVA, or their corresponding nonparametric tests. Statistical significance was set at p<0...
October 10, 2016: Experimental Gerontology
Dorota Sikorska, Krzysztof Pawlaczyk, Anna Olewicz-Gawlik, Natasza Czepulis, Bartlomiej Posnik, Ewa Baum, Maria Wanic-Kossowska, Bengt Lindholm, Andrzej Oko
BACKGROUND: Peritoneal dialysis (PD) patients with preserved residual diuresis have a lower risk of death and complications. Here we analyzed associations between residual diuresis and presence of fluid overload and biomarkers of cardiac strain and nutrition in PD patients. METHODS: Among 44 PD patients placed into three subgroups, depending on volume of residual diuresis (group A ≤ 500; group B 600-1900; and group C ≥ 2000 mL/day), we examined: overhydration (OH) assessed by bioimpedance analysis (BIA; yielding OH index OHBIA) and by clinical criteria (edema and hypertension); nutritional status (by subjective global assessment, SGA); metabolic status (electrolytes, serum lipid profile, CRP, and albumin); biomarkers of fluid overload and cardiac strain (N-terminal probrain natriuretic peptide, NT-proBNP, and troponin T, TnT); and, echocardiography and chest X-ray...
October 12, 2016: International Urology and Nephrology
Takahiro Masuda, Takuya Murakami, Yusuke Igarashi, Kyochika Okabe, Takahisa Kobayashi, Shin-Ichi Takeda, Takako Saito, Chuji Sekiguchi, Yasuharu Miyazawa, Tetsu Akimoto, Osamu Saito, Shigeaki Muto, Daisuke Nagata
Objective Tolvaptan, an oral selective V2-receptor antagonist, is a water diuretic that ameliorates fluid retention with a lower risk of a worsening renal function than conventional loop diuretics. Although loop diuretics predominantly decrease extracellular water (ECW) compared with intracellular water (ICW), the effect of tolvaptan on fluid distribution remains unclear. We therefore examined how tolvaptan changes ICW and ECW in accordance with the renal function. Methods Six advanced chronic kidney disease patients (stage 4 or 5) with fluid retention were enrolled in this study...
2016: Internal Medicine
H Sadhna, R Harris, J L Miles-Chan, S Yves, M Jean-Pierre, J Noorjehan, A G Dulloo
BACKGROUND & AIMS: Global estimates of overweight and obesity prevalence are based upon the World Health Organisation (WHO) body mass index (BMI) cut-off values of 25 and 30 kg/m(2), respectively. To validate these BMI cut-offs for adiposity in the island population of Mauritius, we assessed the relationship between BMI and measured body fat mass in this population according to gender and ethnicity. METHODS: In 175 young adult Mauritians (age 20-42 years) belonging to the two main ethnic groups-Indians (South Asian descent) and Creoles (African/Malagasy descent), body weight, height and waist circumference (WC) were measured, total body fat assessed by Deuterium oxide (D2O) dilution, and trunk (abdominal) fat by segmental bioimpedance analysis...
October 4, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
A S Staelens, S Vonck, G Molenberghs, M Lng Malbrain, W Gyselaers
INTRODUCTION: Body fluid composition (BFC) changes during the course of pregnancy and evidence is growing that these changes are different in uncomplicated pregnancies compared to hypertensive pregnancies. METHODS: The aim of this study was to evaluate the changes in maternal BFC during the course of uncomplicated pregnancy (UP) using bioimpedance analysis, as a reference to measurements in hypertensive pregnancies. BFC was assessed using a multiple frequency bioelectrical impedance analyser...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
I Pisani, D Lo Presti, G M Tiralongo, G Gagliardi, D Farsetti, B Vasapollo, G P Novelli, A Andreoli, H Valensise
INTRODUCTION: During pregnancy, maternal body composition and haemodynamics undergo important changes that are of increasing interest for understanding the evolving maternal physiology. Targets: To assess and correlate changes in body composition and haemodynamic function of healthy normotensive pregnant women. To identify different populations based on TVR values, we enrolled 235 patients subjected to bioimpedance analysis and haemodynamic assessment using the USCOM system. RESULTS: We found an increase of BMI as result of an increase of all its components and a change in water distribution: ECW percentage increases while ICW decreases (see table)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
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(0x3c53aa8) 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
Brett S Nickerson, Michael R Esco, Phillip A Bishop, Randall Schumacker, Mark Richardson, Michael V Fedewa, Jonathan E Wingo, Bailey A Welborn
The purpose of this study was to compare body fat percentage (BF%) and fat-free mass (FFM) values from bioelectrical impedance analysis (BIA) equations to values determined from a four-compartment (4C) model. Eighty-two adults (42 men and 40 women) volunteered to participate (age = 23 ± 5 years). BF% and FFM were estimated from previously developed BIA equations by Chumlea et al. (BIACH), Deurenberg et al. (BIADE), Kyle et al. (BIAKYLE), and Sun et al. (BIASUN). 4C model body composition was derived from underwater weighing for body density, dual energy X-ray absorptiometry for bone mineral content, and bioimpedance spectroscopy for total body water...
September 20, 2016: Journal of Strength and Conditioning Research
Maria de Fátima Guerreiro Godoy, Edivandra Buzato Silva, Jose Maria Pereira de Godoy
BACKGROUND: One of the dreaded complications after the treatment of breast cancer is lymphedema. Therapies used in the treatment of breast cancer such as surgery, radiotherapy, hormone therapy and chemotherapy may be adversely affected by obesity. AIM: The objective of this study was to use bioimpedance to assess abdominal fat in women with breast cancer treatment-related lymphedema and suggest this as a screening method. METHODS: Forty-five female patients with clinical diagnosis of breast cancer treatment-related lymphedema were evaluated in this quantitative cross-sectional study...
July 28, 2016: Breast Disease
A P da Silva, A Matos, R Ribeiro, Â Gil, A Valente, M Bicho, J Gorjão-Clara
BACKGROUND/OBJECTIVES: To evaluate the prevalence of sarcopenia and osteoporosis in centenarians and its association with body composition and past physical activity (PPA). SUBJECTS/METHODS: We conducted an observational cross-sectional study in a representative nationwide population of 253 Portuguese centenarians. A clinically oriented questionnaire and anthropometric and body composition analysis by bioimpedance were executed. Sarcopenia was determined using a muscle mass (MM) index cutoff ⩽16...
September 21, 2016: European Journal of Clinical Nutrition
Alessandra Tramontano, Nicola Veronese, Giuseppe Sergi, Enzo Manzato, Diana Rodriguez-Hurtado, Stefania Maggi, Caterina Trevisan, Francesca De Zaiacomo, Valter Giantin
AIM: To assess the prevalence of sarcopenia and associated factors in a population of older people living in a rural area of the Peruvian Andes. MATERIALS AND METHODS: The study concerned 222 people aged ≥65 years. Sarcopenia was diagnosed on the basis of skeletal muscle mass, measured using bioimpedance analysis, and gait speed, measured with the 4-m walking test, as recommended by the International Working Group on sarcopenia. Self-reported physical activity, the Short Physical Performance Battery, and the Six-Minute Walking Test also contributed information on participants' physical performance status...
September 12, 2016: Archives of Gerontology and Geriatrics
Hye Eun Yoon, Young Joo Kwon, Ho Cheol Song, Jin Kuk Kim, Young Rim Song, Seok Joon Shin, Hyung Wook Kim, Chang Hwa Lee, Tae Won Lee, Young Ok Kim, Byung Soo Kim, Kyoung Hyoub Moon, Yoon Kyung Chang, Seong Suk Kim, Kitae Bang, Jong Tae Cho, Sung Ro Yun, Ki Ryang Na, Yang Wook Kim, Byoung Geun Han, Jong Hoon Chung, Kwang Young Lee, Jong Hyeok Jeong, Eun Ah Hwang, Yong-Soo Kim
UNLABELLED: Backgound: This study evaluated whether the hydration status affected health-related quality of life (HRQOL) during 12 months in peritoneal dialysis (PD) patients. METHODS: The hydration status and the HRQOL were examined at baseline and after 12 months using a bioimpedance spectroscopy and Kidney Disease Quality of Life-Short Form, respectively in PD patients. Four hundred eighty-one patients were included and divided according to the baseline overhydration (OH) value; normohydration group (NH group, -2L≤ OH ≤+2L, n=266) and overhydration group (OH group, OH >+2L, n=215)...
2016: International Journal of Medical Sciences
Bram Rochwerg, Jason H Cheung, Christine M Ribic, Faraz Lalji, France J Clarke, Susheel Gantareddy, Nischal Ranganath, Aziz Walele, Ellen McDonald, Maureen O Meade, Deborah J Cook, Trevor T Wilkieson, Catherine M Clase, Peter J Margetts, Azim S Gangji
Background. Bioimpedance analysis (BIA) is a novel method of assessing a patient's volume status. Objective. We sought to determine the feasibility of using vector length (VL), derived from bioimpedance analysis (BIA), in the assessment of postresuscitation volume status in intensive care unit (ICU) patients with sepsis. Method. This was a prospective observational single-center study. Our primary outcome was feasibility. Secondary clinical outcomes included ventilator status and acute kidney injury. Proof of concept was sought by correlating baseline VL measurements with other known measures of volume status...
2016: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
Carolina Gálvez-Montón, Ramon Bragós, Carolina Soler-Boti Ja, Idoia Díaz-Güemes, Cristina Prat-Vidal, Verónica Crisóstomo, Francisco M Sánchez-Margallo, Aida Llucià-Valldeperas, Paco Bogónez-Franco, Isaac Perea-Gil, Santiago Roura, Antoni Bayes-Genis
: : Cardiac tissue engineering, which combines cells and biomaterials, is promising for limiting the sequelae of myocardial infarction (MI). We assessed myocardial function and scar evolution after implanting an engineered bioactive impedance graft (EBIG) in a swine MI model. The EBIG comprises a scaffold of decellularized human pericardium, green fluorescent protein-labeled porcine adipose tissue-derived progenitor cells (pATPCs), and a customized-design electrical impedance spectroscopy (EIS) monitoring system...
September 2, 2016: Stem Cells Translational Medicine
A P Morais, A V Pino, M N Souza
This in vitro study evaluated the diagnostic performance of an alternative electric bioimpedance spectroscopy technique (BIS-STEP) detect questionable occlusal carious lesions. Six specialists carried out the visual (V), radiography (R), and combined (VR) exams of 57 sound or non-cavitated occlusal carious lesion teeth classifying the occlusal surfaces in sound surface (H), enamel caries (EC), and dentinal caries (DC). Measurements were based on the current response to a step voltage excitation (BIS-STEP). A fractional electrical model was used to predict the current response in the time domain and to estimate the model parameters: Rs and Rp (resistive parameters), and C and α (fractional parameters)...
August 2016: Review of Scientific Instruments
Fansan Zhu, Laura Rosales, Peter Kotanko
PURPOSE OF REVIEW: The aim of this article is to present current information on techniques for fluid status assessment in patients with kidney disease. The methods can be broadly categorized into biomarkers, ultrasound, blood volume monitoring, and bioimpedance. RECENT FINDINGS: Biomarkers including atrial natriuretic peptide and B-type natriuretic peptide have been shown to provide information about relative changes in fluid status. Ultrasound is applied to measure inferior vena cava indices, pulmonary indicators, and vascular indicators of fluid overload...
November 2016: Current Opinion in Nephrology and Hypertension
Estefanía Arámbula-Garza, Lilia Castillo-Martínez, Dulce González-Islas, Arturo Orea-Tejeda, Brenda Santellano-Juárez, Candace Keirns-Davies, Viridiana Peláez-Hernández, Rocío Sánchez-Santillán, Juan Pineda-Juárez, Carlos Cintora-Martínez, Ruth Pablo-Santiago
BACKGROUND: Cachexia is a common complication in patients with advanced heart failure (HF) associated with inflammatory response activation. Atrial fibrillation (AF) is the most frequent arrhythmia (26%), probably both exacerbate the cardiac cachexia (CC). OBJECTIVES: Evaluate the association of cardiac cachexia and atrial fibrillation in heart failure patients. MATERIAL AND METHODS: In a case control study, CC was diagnosed by electrical bioimpedance with vectorial analysis (BIVA)...
November 15, 2016: International Journal of Cardiology
Paolo Marzullo, Chiara Mele, Stefania Mai, Gabriele Guzzaloni, Davide Soranna, Maria Antonella Tagliaferri, Maria Elisa Berselli, Flavia Prodam, Daniela Surico, Gianluca Aimaretti, Massimo Scacchi
BACKGROUND: Obesity is known to promote mild hyperthyrotropinaemia by unknown metabolic mechanisms. This investigation aimed to explore the association between thyroid function and metabolic phenotype in euthyroid obese individuals. Retrospective, cross-sectional study. Tertiary care center. METHODS: 952 euthyroid obese individuals referred to our Institution for obesity. Serum levels of TSH, FT4, glucose, insulin and HbA1c levels, lipid profile, liver function and proinflammatory indices were measured...
2016: Diabetology & Metabolic Syndrome
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