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"Bioimpedance"

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https://www.readbyqxmd.com/read/28716046/blood-volume-monitored-regulation-of-ultrafiltration-to-decrease-the-dry-weight-in-fluid-overloaded-hemodialysis-patients-a-randomized-controlled-trial
#1
Marlies Antlanger, Peter Josten, Michael Kammer, Isabella Exner, Katharina Lorenz-Turnheim, Manfred Eigner, Gernot Paul, Renate Klauser-Braun, Gere Sunder-Plassmann, Marcus D Säemann, Manfred Hecking
BACKGROUND: Because chronic fluid volume overload is associated with higher mortality, we tested whether blood-volume monitored regulation of ultrafiltration and dialysate conductivity (UCR) and/or regulation of ultrafiltration and temperature (UTR) would facilitate dry weight reduction, in comparison to conventional dialysis (CONV). METHODS: We carried out a multicenter, 4-week, randomized controlled trial in hemodialysis patients ≥15% above normal extracellular fluid volume (ECV), per bioimpedance spectroscopy, who were randomized 1:1:1...
July 17, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28715064/new-indexes-of-body-fat-distribution-vai-bai-whtr-and-metabolic-disturbances-in-obese
#2
Beata Jabłonowska-Lietz, Małgorzata Wrzosek, Marta Włodarczyk, Grażyna Nowicka
BACKGROUND AND AIM: The aim of this study was to examine the relationship between new obesity-related indexes, anthropometric and biochemical parameters and body composition in individuals with obesity. METHODS: The study group consisted of 72 women and 34 men aged 39.0 ± 5.9 years with a mean BMI of 32.6 ± 2.4 kg / m2, admitted for body weight reduction. In all participants body weight (BW), height, waist circumference (WC), hip circumference (HC), body mass index (BMI), waist-to-hip-ratio (WHR), visceral adiposity index (VAI), body adiposity index (BAI), waist-to-height ratio (WHtR) were assessed...
July 17, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28703894/comparison-of-resting-energy-equations-and-total-energy-expenditure-in-haemodialysis-patients-and-body-composition-measured-by-multi-frequency-bioimpedance
#3
Ben Oliveira, Sivakumar Sridharan, Ken Farrington, Andrew Davenport
BACKGROUND: Waste products of metabolism are retained in haemodialysis (HD) patients. Cellular metabolism generates energy, and patients with greater energy expenditure may therefore require more dialysis. To determine the amount of dialysis required, equations estimating resting and total energy expenditure (REE,TEE) are required. METHODS: We compared estimates of REE in HD patients using established equations with a novel equation recently validated in HD patients (HD equation)...
July 13, 2017: Nephrology
https://www.readbyqxmd.com/read/28685558/bioimpedance-analysis-metabolic-effects-and-safety-of-the-association-berberis-aristata-bilybum-marianum-a-52-week-double-blind-placebo-controlled-study-in-obese-patients-with-type-2-diabetes
#4
G Guarino, F Strollo, L Carbone, T Della Corte, M Letizia, G Marino, S Gentile
Berberine, a quaternary isoquinoline alkaloid present in Berberis aristata, is well known in terms of cholesterol-lowering, hypoglycemic, and insulin sensitizing effects. Because of its low oral bioavailability, to improve intestinal absorption it has been recently combined with silymarin (Silybum marianum). The aim of our placebo controlled study was to evaluate the effects of its association with silymarin on abdominal fat in overweight/obese patients with type 2 diabetes mellitus (T2DM). To do so, 136 obese subjects with T2DM and metabolic syndrome were analyzed for fasting blood glucose and insulin, Insulin Resistance index according to the Homeostatic Model Assessment (HOMA-R), total, HDL and LDL cholesterol, triglycerides, uric acid, BMI, waist circumference, waist to hip ratio and underwent bioelectrical impedance to assess % of abdominal fat...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28684917/effects-of-a-tailored-lifestyle-self-management-intervention-talent-study-on-weight-reduction-a-randomized-controlled-trial
#5
Dieter Melchart, Peter Löw, Erich Wühr, Victoria Kehl, Wolfgang Weidenhammer
OBJECTIVE: Overweight and obesity are globally increasing risk factors for diseases in the context of metabolic syndrome. A randomized controlled trial was conducted to investigate whether there are any existing differences between two lifestyle intervention strategies with respect to weight reduction after 1 year. SUBJECTS AND METHODS: A total of 166 subjects with a body mass index of 28-35 kg/m(2) were enrolled in this trial at seven study centers; 109 were randomly allocated to the intervention group (comprehensive lifestyle modification program: web-based Individual Health Management [IHM]) with 3-month reduction phase plus 9-month maintenance phase, and 57 were allocated to the control group (written information with advice for healthy food habits: usual care [UC])...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/28684015/bioimpedance-spectroscopy-measurements-of-phase-angle-and-height-for-age-are-predictive-of-outcome-in-children-following-surgery-for-congenital-heart-disease
#6
L V Marino, R Meyer, M Johnson, C Newell, C Johnstone, A Magee, K Sykes, S A Wootton, J V Pappachan
OBJECTIVE: Children with congenital heart disease (CHD) are often growth restricted (low weight- and/or height-for-age) which may increase risk of poor post operative resilience. Bioelectrical impedance spectroscopy (BIS) has been used to determine body composition in different clinical settings and has been shown to mark differences in nutritional state and clinical outcome. In disease conditions were fluid is not normally distributed it is proposed that raw impedance values and BIS derived phase-angle may serve as prognostic indicators of clinical outcome...
June 28, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28670535/effect-of-antithyroid-therapies-on-bone-and-body-composition-a-prospective-randomized-clinical-study-comparing-antithyroid-drugs-with-radioiodine-therapy
#7
Shekhar Kansara, Narendra Kotwal, K V S Hari Kumar, Yashpal Singh, Vimal Upreti, Amit Nachankar
BACKGROUND: Thyrotoxicosis is associated with loss of body weight and bone mineral content (BMC). Antithyroid drugs (ATD) and radioiodine therapy (RIT) are the common options for the management of thyrotoxicosis. We evaluated the effect of ATD and RIT on BMC and body composition. MATERIALS AND METHODS: In this prospective study, we randomized 60 patients of thyrotoxicosis (20-50 years, treatment naïve, males) to receive either ATD (Group 1) using carbimazole or RIT (Group 2)...
July 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28658165/changes-in-skeletal-muscle-mass-after-endoscopic-treatment-in-patients-with-esophageal-varices
#8
RANDOMIZED CONTROLLED TRIAL
Yoshiyuki Sakai, Hiroki Nishikawa, Hirayuki Enomoto, Kazunori Yoh, Akio Ishii, Yoshinori Iwata, Yuho Miyamoto, Noriko Ishii, Yukihisa Yuri, Kunihiro Hasegawa, Chikage Nakano, Takashi Nishimura, Nobuhiro Aizawa, Naoto Ikeda, Tomoyuki Takashima, Ryo Takata, Hiroko Iijima, Shuhei Nishiguchi
To the best of our knowledge, no available data with regard to changes in skeletal muscle mass for liver cirrhosis (LC) patients with esophageal varices (EVs) undergoing endoscopic therapy as a primary prophylaxis could exist. As endoscopic therapies, such as endoscopic injection sclerotherapy or endoscopic band ligation for EVs, accompany invasive procedure and patients with EVs receiving endoscopic therapies mostly rest in bed during hospitalization, clarifying these issues are clinically of importance. The purposes of this study were therefore to examine changes in skeletal muscle mass for LC patients with EVs undergoing endoscopic therapy as a primary prophylaxis and to identify pretreatment predictors which are associated with the amelioration in skeletal muscle mass...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28657491/novel-noninvasive-method-of-cerebrovascular-blood-volume-assessment-using-brain-bioimpedance
#9
Mohamad Hakam Tiba, Brendan M McCracken, Sardar Ansari, Ashwin Belle, Brandon C Cummings, Venkatakrishna Rajajee, Parag G Patil, Hasan B Alam, Kevin R Ward
Cerebro-vascular autoregulation (CAR) is the ability of vessels to modulate their tone in response to changes in pressure. CAR, as an auto-protective mechanism is critical in preventing secondary brain injury post trauma. Monitoring of changes in cerebral blood volume might be valuable in evaluating CAR and response to various therapies. In this study, we utilized an ocular-brain bioimpedance interface to assess real time changes in cerebral blood volume in response to a number of physiologic challenges. We hypothesize that changes in brain bioimpedance (dz) would track changes in cerebral blood volume...
June 28, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28657427/expression-of-metabolic-syndrome-in-women-with-severe-obesity
#10
James L Hopkins, Paul N Hopkins, Eliot A Brinton, Ted D Adams, Lance E Davidson, M Nazeem Nanjee, Steven C Hunt
BACKGROUND: The prevalence of metabolic syndrome (MetS) generally rises with increasing adiposity, but tends to plateau at the highest levels of body mass index (BMI) with some individuals, even with severe obesity, expressing few or no components of MetS. We examined factors associated with the expression of MetS in severely obese women participating in a large observational study. METHODS: Anthropometrics, including Heath equation-adjusted bioimpedance-determined fat-free mass (FFM) and fat mass (FM), lipids and related laboratory measurements, resting energy expenditure (REE), and respiratory quotient (RQ), were studied in 949 women with severe obesity...
June 28, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28655389/role-of-dry-lean-body-mass-for-estimation-of-glomerular-filtration-rate-in-kidney-transplant-recipients
#11
Špela Borštnar, Jelka Lindič, Andrej Škoberne, Luka Ležaič, Aljaž Sočan, Aljoša Kandus, Damjan Kovač
BACKGROUND: The use of equations that predict glomerular filtration rate (GFR) in patients with a kidney graft is still a matter of debate. The purpose of this study was to determine the level of accuracy of GFR equations and the relevance of dry lean body mass in the assessment of GFR. METHODS: In a prospective clinical study, 100 patients with a kidney graft were included. Estimated GFR with Modification of Diet in Renal Disease equation (MDRD), Chronic Kidney Disease Epidemiology Collaboration equation (CKD EPI) with serum creatinine concentration (CKD EPI Cr), serum cystatin C concentration (CKD EPI CysC) or both (CKD EPI Cr-CysC), and creatinine clearance calculated with Cockcroft-Gault equation (CG) was compared with GFR measured by 51Cr-EDTA clearance (mGFR 51Cr-EDTA)...
June 28, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28651645/lead-field-theory-provides-a-powerful-tool-for-designing-microelectrode-array-impedance-measurements-for-biological-cell-detection-and-observation
#12
Marcel Böttrich, Jarno M A Tanskanen, Jari A K Hyttinen
BACKGROUND: Our aim is to introduce a method to enhance the design process of microelectrode array (MEA) based electric bioimpedance measurement systems for improved detection and viability assessment of living cells and tissues. We propose the application of electromagnetic lead field theory and reciprocity for MEA design and measurement result interpretation. Further, we simulated impedance spectroscopy (IS) with two- and four-electrode setups and a biological cell to illustrate the tool in the assessment of the capabilities of given MEA electrode constellations for detecting cells on or in the vicinity of the microelectrodes...
June 26, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28636566/detection-of-muscle-gap-by-l-bia-in-muscle-injuries-clinical-prognosis
#13
L Nescolarde, J Yanguas, J Terricabras, H Lukaski, X Alomar, J Rosell-Ferrer, G Rodas
Sport-related muscle injury classifications are based basically on imaging criteria such as ultrasound (US) and magnetic resonance imaging (MRI) without consensus because of a lack of clinical prognostics for return-to-play (RTP), which is conditioned upon the severity of the injury, and this in turn with the muscle gap (muscular fibers retraction). Recently, Futbol Club Barcelona's medical department proposed a new muscle injury classification in which muscle gap plays an important role, with the drawback that it is not always possible to identify by MRI...
June 21, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28628739/predictive-validity-of-body-fat-percentage-by-bioimpedance-compared-with-deuterium-oxide-dilution-in-costa-rican-schoolchildren
#14
Juan Diego Zamora Salas, Adriana Laclé-Murray
OBJECTIVE: The purpose of this study was to verify the validity of body fat percentage (BF%) by bioelectrical impedance analysis (BIA) in a sample of Costa Rican schoolchildren. METHODS: The sample consisted of 52 male (mean age 8.1 ± 0.9 years) and 49 female (mean age 7.5 ± 1.0 years) schoolchildren. Deuterium oxide dilution was the reference method used as the "gold standard" to determine the fat mass (FM) expressed as BF%. Linear regression analyses and paired sample t-tests were used to test the association and mean differences between BIA and deuterium oxide dilution BF%...
June 19, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28626257/multi-center-rater-blinded-study-of-early-intervention-with-the-hand-incubator-for-breast-cancer-related-lymphedema-the-beat-edema-trial-proposal-of-a-research-protocol
#15
Hisao Ishii, Katsuyuki Iwatsuki, Masahiro Tatebe, Hitoshi Hirata, Toyone Kikumori, Nobuyuki Tsunoda, Ikuo Hyodo, Tomoko Ogawa, Naoki Unno
Postoperative lymphedema is considered irreversible once it has developed, and significantly lowers the patient's quality of life. However, lymphatic function has recently been clarified, and it is possible that lymphedema can be cured if early treatment is started. This two-arm randomized clinical trial (UMIN000026124) will prospectively evaluate 24 patients with early-stage breast cancer-related lymphedema at the Nagoya University Hospital and Aichi Cancer Center Hospital. The eligibility criteria will be patients who are diagnosed with stage 0-1 breast cancer-related lymphedema, as defined by the International Society of Lymphology, within 12 weeks after breast cancer surgery...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28625428/bioimpedence-a-noninvasive-measure-of-stroke-volume-and-cardiac-output
#16
EDITORIAL
Andrew Maslow
No abstract text is available yet for this article.
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28624154/lymphedema-following-gynecological-cancer-results-from-a-prospective-longitudinal-cohort-study-on-prevalence-incidence-and-risk-factors
#17
Sandra C Hayes, Monika Janda, Leigh C Ward, Hildegard Reul-Hirche, Megan L Steele, Johnathan Carter, Michael Quinn, Bruce Cornish, Andreas Obermair
OBJECTIVE: Cancer-related lymphedema is a debilitating condition that adversely influences function, health and quality of life. The purpose of this study was to assess the prevalence, incidence, and risk factors of lower-limb lymphedema pre- through to 24months post-surgery for gynecological cancer. METHODS: A clinic-based sample of women (n=408) with gynecological cancer participated in a prospective, longitudinal study (2008-2011) using self-reported measures (swelling in one or both legs) and objectively measured lymphedema (bioimpedance spectroscopy) at baseline (pre-surgery), six weeks-three months, 6-12months, and 15-24months post-surgery...
June 14, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28622087/body-physique-and-proportionality-of-brazilian-female-artistic-gymnasts
#18
Sarita Bacciotti, Adam Baxter-Jones, Adroaldo Gaya, José Maia
This study aimed to identify physique characteristics (anthropometry, somatotype, body proportionality) of Brazilian female artistic gymnasts, and to compare them across competitive levels (sub-elite versus non-elite) within competitive age-categories. Two hundred forty-nine female gymnasts (68 sub-elite; 181 non-elite) from 26 Brazilian gymnastics clubs, aged 9-20 years and split into four age-categories, were sampled. Gymnasts were assessed for 16 anthropometric traits (height, weight, lengths, widths, girths, and skinfolds); somatotype was determined according to Heath-Carter method, body fat was estimated by bioimpedance, and proportionality was computed based on the z-phantom strategy...
June 16, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28619128/bioimpedance-based-rather-than-weight-based-ultrafiltration-prescription-for-children-on%C3%A2-maintenance-hemodialysis%C3%A2
#19
Gianluigi Ardissino, Mirco Belingheri, Michela Perrone, Francesca Tel, Dario Consonni, Sara Testa
The determination of dry weight (DW) in young children on hemodialysis (HD) remains challenging. Bioimpedance analysis (BIA) is a potentially helpful means of estimating the need for ultrafiltration and monitoring body fluids in patients on renal replacement therapy, but its role has not yet been clearly defined. The aim of this paper is to share our experience of prescribing ultrafiltration on the basis of BIA parameters alone. The body weight (BW), resistance (Rx), and reactance (Xc) of a 3-year-old girl on chronic HD were recorded pre- and post-HD over a period of 16 months...
June 16, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28604642/comparison-of-prognostic-impact-between-the-child-pugh-score-and-skeletal-muscle-mass-for-patients-with-liver-cirrhosis
#20
Hiroki Nishikawa, Hirayuki Enomoto, Akio Ishii, Yoshinori Iwata, Yuho Miyamoto, Noriko Ishii, Yukihisa Yuri, Kunihiro Hasegawa, Chikage Nakano, Takashi Nishimura, Kazunori Yoh, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Ryo Takata, Hiroko Iijima, Shuhei Nishiguchi
AIMS: To investigate the influence of skeletal muscle mass index (SMI) as determined by bioimpedance analysis (BIA) (appendicular skeletal muscle mass/(height)²) on survival by comparing the Child-Pugh score in patients with liver cirrhosis (LC, n = 383, average age = 65.2 years). PATIENTS AND METHODS: In terms of comparison of the effects of SMI and other markers on survival, we used time-dependent receiver operating characteristics (ROC) analysis. RESULTS: The average SMI for male was 7...
June 12, 2017: Nutrients
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