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In the October In Our Unit article by Cooper et al, “Against All Odds: Preventing Pressure Ulcers in High-Risk Cardiac Surgery Patients” (Crit Care Nurse. 2015;35[5]:76–82), there was an error in the reference citation on page 82. At the top of that page, reference 18 cited on the second line should be reference 23, which also should be added to the References list: 23. AHRQ website. Prevention and treatment program integrates actionable reports into practice, significantly reducing pressure ulcers in nursing home residents...
February 2016: Critical Care Nurse
Aurelio A de los Reyes V, Doris H Fuertinger, Franz Kappel, Anna Meyring-Wösten, Stephan Thijssen, Peter Kotanko
An assessment of fluid status can be obtained by monitoring relative blood volume (RBV) during hemodialysis (HD) treatment. The dynamics of RBV is determined by fluid removal from the intravascular compartment by ultrafiltration (UF) and vascular refill from the interstitium. To characterize this dynamics, a two-compartment model describing the short-term dynamics of vascular refilling and UF is developed. Fluid movement between the compartments is governed by lymphatic and microvascular fluid shifts. Further, protein flux is described by convection, diffusion and the lymphatic protein flux...
February 7, 2016: Journal of Theoretical Biology
Paul Balter, Linda H Ficociello, Patrice B Taylor, Len Usvyat, Dixie-Ann Sawin, Claudy Mullon, Jose Diaz-Buxo, Paul Zabetakis
BACKGROUND: Inadequate removal of extracellular volume markedly increases blood pressure and contributes to high morbidity and mortality in hemodialysis patients. Advances in fluid management are needed to improve clinical outcomes. The aim of this quality improvement project was to examine the advantages of using a hematocrit-based, blood volume monitor (Crit-Line * ) for 12 months, as part of a clinic-wide, fluid management program in one dialysis facility. METHODS: Forty-five individuals were receiving hemodialysis at one facility at project initiation and are included in this analysis...
2015: Current Medical Research and Opinion
Rouba Garro, Scott Sutherland, Liz Bayes, Steven Alexander, Cynthia Wong
BACKGROUND: The national average for achieving the KDOQI-recommended hemoglobin (Hgb) target level of 11-12 g/dL is low with the current anemia management protocol of measuring Hgb levels every 2-4 weeks to guide intervention. The objective of this study was to correlate initial Hgb readings from the CRIT-LINE monitor with actual serum Hgb levels in pediatric patients on hemodialysis (HD). METHODS: Data were collected from pediatric HD patients who had Hgb tests ordered for routine and/or clinical reasons...
June 2015: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Paul Balter, Mikhail Artemyev, Paul Zabetakis
The Crit-Line™ monitor measures relative changes in intravascular blood volume during hemodialysis. The device is also used to monitor hematocrit and oxygen saturation. Using this device to decrease fluid volume has yielded inconsistent results on outcome measures such as hospitalization rates, erythropoietin utilization, and blood pressure reduction. Through a year-long deployment of the Crit-Line™ monitor, the Renal Research Institute (RRI) has shown that outcomes can be improved even in a busy dialysis clinic with attention to the details of how the device is utilized...
2015: Blood Purification
M A Butlitsky, B B Zelener, B V Zelener
A two-component plasma model, which we called a "shelf Coulomb" model has been developed in this work. A Monte Carlo study has been undertaken to calculate equations of state, pair distribution functions, internal energies, and other thermodynamics properties. A canonical NVT ensemble with periodic boundary conditions was used. The motivation behind the model is also discussed in this work. The "shelf Coulomb" model can be compared to classical two-component (electron-proton) model where charges with zero size interact via a classical Coulomb law...
July 14, 2014: Journal of Chemical Physics
Scott P Sibbel, Linda H Ficociello, Michael Black, Mayuri Thakuria, Claudy Mullon, Jose Diaz-Buxo, Thomas J Alfieri
BACKGROUND: The Crit-Line® monitor (CLM) is a device for monitoring hematocrit, oxygen saturation and change in intravascular blood volume during hemodialysis. Prior studies have evaluated CLM use in dialysis patients, but not specifically in those new to dialysis. METHODS: In this retrospective analysis, 199 patients initiating dialysis at 8 facilities routinely using CLM were compared with 796 propensity score-matched non-CLM patients initiating dialysis at facilities not using CLM...
2014: Blood Purification
Hiroshi Yamada, Minako Saeki, Junko Ito, Kazuhiro Kawada, Aya Higurashi, Hiromi Funakoshi, Kohji Takeda
The pulse CO-Oximeter (Radical-7; Masimo Corp., Irvine, CA) is a multi-wavelength spectrophotometric method for noninvasive continuous monitoring of hemoglobin (SpHb). Because evaluating the relative change in blood volume (ΔBV) is crucial to avoid hypovolemia and hypotension during hemodialysis, it would be of great clinical benefit if ΔBV could be estimated by measurement of SpHb during hemodialysis. The capability of the pulse CO-Oximeter to monitor ΔBV depends on the relative trending accuracy of SpHb...
February 2015: Journal of Clinical Monitoring and Computing
Gia Oh, Cynthia Wong, Brandy Begin, Kari Salsbery, Scott Sutherland, Abanti Chaudhuri
BACKGROUND: We hypothesized that the percent change in resistance (%RΔ) from bioimpedance analysis (BIA) measurements during hemodialysis (HD) can provide information on pediatric HD patients' hydration status. METHODS: Whole-body single-frequency BIA measurements were obtained before HD, each hour on HD, and after HD during two HD sessions. Pre-and post-HD weights, blood pressures, Crit-Line® measurements, and intradialytic symptoms were collected on the day of the BIA measurements...
August 2014: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Naoki Sugano, Keitaro Yokoyama, Naohiko Kato, Yoichiro Hara, Satoshi Endo, Jun Mitome, Taisei Kin, Goro Tokudome, Satoru Kuriyama, Tatsuo Hosoya, Takashi Yokoo
BACKGROUND: Bioelectrical impedance analysis (BIA) is a non-invasive method to estimate total body water (TBW) and extracellular water (ECW) volume. Crit-Line(®) (CL), on the other hand, assesses intravascular water (IVW) volume. We evaluate continuous changes in body water composition during hemodialysis (HD) with concurrent use of BIA and CL. METHODS: BIA at the start and the end of the HD session was measured using a BIA device. To investigate the shifting pattern of body water composition, patients were subjected to simultaneous monitoring of BIA with CL...
December 2014: Clinical and Experimental Nephrology
Sonika Puri, Jun-Ki Park, Frank Modersitzki, David S Goldfarb
Accurate assessment of blood volume (BV) may be helpful for prescribing hemodialysis (HD) and for reducing complications related to hypovolemia and volume overload. Monitoring changes in relative BV (RBV) using hematocrit, e.g., Crit-Line Monitor (CLM-III), an indirect method, cannot be used to determine absolute BV. We report the first study of BV measurement for assessing volume status in HD patients using the indicator dilutional method. Ten adult HD patients were enrolled in this prospective observational study...
April 2014: Hemodialysis International
Amanda Stavinoha, Vinai Modem, Raymond Quigley
Maintaining a dialysis patient's hemoglobin (Hgb) within a very narrow range can be challenging. Relying on Hgb measurements only once or twice a month can cause large fluctuations in their measurements. Utilizing the Hgb measurement from noninvasive modalities has been studied in adult populations. Our study focused on a pediatric hemodialysis population where blood volumes are much smaller to see if these measurements would adequately work for adjusting erythropoietin dosages. We reviewed our patients' data over a 6-month time period and collected simultaneous measurements of Hgb performed in the laboratory, as well as the initial Crit-Line measurement...
October 2013: Hemodialysis International
Hala Moukhachen, Prabalini Rajendram, Sanjay Chawla, Nina Raoof, Kaye Hale, Louis Voigt, Stephen Pastores, Neil Halpern
SESSION TYPE: Cardiovascular Case Report PostersPRESENTED ON: Tuesday, October 23, 2012 at 01:30 PM - 02:30 PMINTRODUCTION: Pulmonary veno-occlusive disease (PVOD) is an uncommon variant of primary pulmonary artery hypertension (PAH) and is a rare but fatal complication of hematopoeitic stem cell transplant (HSCT). It often goes unrecognized antemortem.CASE PRESENTATION: 63-year-old man with history of Burkitt's lymphoma s/p chemotherapy in 2003 followed by autologous HSCT in 2005. In January 2011, he was diagnosed with MDS and received chemotherapy followed by an allogeneic HSCT...
October 1, 2012: Chest
Yundong Zhang, Xuenan Zhang, Ying Wang, Ruidong Zhu, Yulong Gai, Xiaoqi Liu, Ping Yuan
We theoretically propose and experimentally perform a novel dispersion tuning scheme to realize a tunable Fano resonance in a coupled-resonator-induced transparency (CRIT) structure coupled Mach-Zehnder interferometer. We reveal that the profile of the Fano resonance in the resonator coupled Mach-Zehnder interferometers (RCMZI) is determined not only by the phase shift difference between the two arms of the RCMZI but also by the dispersion (group delay) of the CRIT structure. Furthermore, it is theoretically predicted and experimentally demonstrated that the slope and the asymmetry parameter (q) describing the Fano resonance spectral line shape of the RCMZI experience a sign reversal when the dispersion of the CRIT structure is tuned from abnormal dispersion (fast light) to normal dispersion (slow light)...
April 8, 2013: Optics Express
Kazutaka Yanase, Neill A Herbert, John C Montgomery
The yellowtail kingfish, Seriola lalandi, shows a distribution of anaerobic and aerobic (red and pink) muscle fibres along the trunk that is characteristic of active pelagic fishes. The athletic capacity of S. lalandi is also shown by its relative high standard metabolic rate and optimal (i.e. least cost) swimming speed. To test the hypothesis that lateral line afferent information contributes to efficient locomotion in an active pelagic species, the swimming performance of S. lalandi was evaluated after unilateral disruption of trunk superficial neuromasts (SNs)...
November 15, 2012: Journal of Experimental Biology
Michael A Bucaro, Yolanda Vasquez, Benjamin D Hatton, Joanna Aizenberg
Nanobiomaterials are introducing new capabilities to coordinate cell selection, growth, morphology, and differentiation. Herein, we report that tuning the geometry of ordered arrays of nanopillars (NP) elicits specialized morphologies in adherent cells. Systematic analysis of the effects of the NP radius, height, and spacing reveals that stem cells assume either flattened, polarized, or stellate morphologies in direct response to interpillar spacing. Notably, on NPs of pitch near a critical spacing (d(crit) ≈ 2 μm for C3H10T1/2 cells), cells exhibit rounding of the cell body, pronounced polarization, and extension of narrow axon-like cell projections aligned with the square lattice of the NP array and extending hundreds of micrometers...
July 24, 2012: ACS Nano
Ramon Roca-Tey, Rosa Samon, Omar Ibrik, Amparo Roda, Juan C González-Oliva, Jordi Viladoms
INTRODUCTION: Periodic blood flow (QA) measurement is the preferred way for arteriovenous fistula (AVF) surveillance in chronic hemodialysis (HD) patients. Objectives. 1) Assess the efficacy of the temperature gradient method (TGM) on the QA determinations using the Twister™ device and to compare the functional results with the Delta-H method. 2) Evaluate the effect of blood pressure on the AVF function. Patients and method. We measured the QA non invasively in 30 AVF (24 radial and 6 brachial; mean duration 53...
2012: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
M Patziger, H Kainz, M Hunze, J Józsa
Secondary settling is the final step of the activated sludge-based biological waste water treatment. Secondary settling tanks (SSTs) are therefore an essential unit of producing a clear effluent. A further important function of SSTs is the sufficient thickening to achieve highly concentrated return sludge and biomass within the biological reactor. In addition, the storage of activated sludge is also needed in case of peak flow events (Ekama et al., 1997). Due to the importance of a high SST performance the problem has long been investigated (Larsen, 1977; Krebs, 1991; Takács et al...
May 1, 2012: Water Research
Ramón Roca-Tey, Rosa Samon, Omar Ibrik, Empar Roda, Juan Carlos González-Oliva, Román Martínez-Cercós, Jordi Viladoms
PURPOSE: To report experience over five years of vascular access (VA) stenosis surveillance. METHODS: We prospectively monitored the blood flow rate (QA) of 145 VA in 131 ESRD (age 62.6 ±13.5 y) patients (pts). QA measurement: within the first hour of the hemodialysis (HD) session by the Delta-H method using the Crit Line III Monitor. All VA with baseline QA < 700 mL/min or decreased > 20% from baseline over time met the positive evaluation (PE) criteria and were referred for angiography (AG) plus elective intervention if stenosis = 50%...
July 2012: Journal of Vascular Access
Matthew W Foster, Zhonghui Yang, Erin N Potts, W Michael Foster, Loretta G Que
S-nitrosoglutathione (GSNO) is an endogenous bronchodilator present in micromolar concentrations in airway lining fluid. Airway GSNO levels decrease in severe respiratory failure and asthma, which is attributable to increased metabolism by GSNO reductase (GSNOR). Indeed, we have found that GSNOR expression and activity correlate inversely with lung S-nitrosothiol (SNO) content and airway hyperresponsiveness (AHR) to methacholine (MCh) challenge in humans with asthmatic phenotypes (Que LG, Yang Z, Stamler JS, Lugogo NL, Kraft M...
November 2011: American Journal of Physiology. Lung Cellular and Molecular Physiology
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