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https://www.readbyqxmd.com/read/28219130/-the-value-of-brachial-artery-peak-velocity-variation-during-the-valsalva-maneuver-to-predict-fluid-responsiveness
#1
L F Sheng, M Yan, F J Zhang, Q S Ren, S H Yu, M Wu
Objective: To evaluate whether brachial artery peak velocity variation(ΔVp) during a Valsalva maneuver(VM) could predict fluid responsiveness in spontaneously breathing patients. Methods: Ninety-six patients required radial artery catheter for elective surgery of Ningbo Yinzhou People's Hospital from December 2014 to June 2016 were enrolled. The brachial artery Doppler signal was recorded to measure the ΔVp while the VM was performed.Then doing the volume expansion (VE) , the cardiac output variation (ΔCO) before and after VE were measured...
February 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28212239/the-frank-starling-curve-is-not-equivalent-to-the-fluid-responsiveness-curve
#2
Ubbo Frank Wiersema, Shailesh Bihari
No abstract text is available yet for this article.
March 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28212048/can-passive-leg-raising-be-considered-gold-standard-in-predicting-fluid-responsiveness
#3
Simon T Vistisen, Johannes Enevoldsen, Thomas W L Scheeren
No abstract text is available yet for this article.
February 17, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28210935/the-effect-of-fluid-resuscitation-on-the-effective-circulating-volume-in-patients-undergoing-liver-surgery-a-post-hoc-analysis-of-a-randomized-controlled-trial
#4
Jaap Jan Vos, A F Kalmar, H G D Hendriks, J Bakker, T W L Scheeren
To assess the significance of an analogue of the mean systemic filling pressure (Pmsa) and its derived variables, in providing a physiology based discrimination between responders and non-responders to fluid resuscitation during liver surgery. A post-hoc analysis of data from 30 patients undergoing major hepatic surgery was performed. Patients received 15 ml kg(-1) fluid in 30 min. Fluid responsiveness (FR) was defined as an increase of 20% or greater in cardiac index, measured by FloTrac-Vigileo(®). Dynamic preload variables (pulse pressure variation and stroke volume variation: PPV, SVV) were recorded additionally...
February 16, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28207430/evaluation-of-augmented-pulse-pressure-variation-using-the-valsalva-manoeuvre-as-a-predictor-of-fluid-responsiveness-under-open-chest-conditions-a-prospective-observational-study
#5
Jeong Jin Min, Tae Kyong Kim, Jong-Hwan Lee, Jiyeon Park, Hyun Sung Cho, Wook Sung Kim, Young Tak Lee
BACKGROUND: Pulse pressure variation (PPV) is a well known dynamic preload indicator of fluid responsiveness. However, its usefulness in open-chest conditions remains controversial. OBJECTIVE: We evaluated whether augmented PPV during a Valsalva manoeuvre can predict fluid responsiveness after sternotomy. DESIGN: A prospective, observational study. SETTING: Single-centre trial, study period from October 2014 to June 2015...
February 15, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28171804/hemodynamic-and-neuro-monitoring-for-neurocritically-ill-patients-an-international-survey-of-intensivists
#6
Sanjeev Sivakumar, Fabio S Taccone, Mohammed Rehman, Holly Hinson, Neeraj Naval, Christos Lazaridis
PURPOSE: To investigate multimodality systemic and neuro-monitoring practices in acute brain injury (ABI) and to analyze differences among "neurointensivists" (NI; clinical practice comprised >1/3 by neurocritical care), and other intensivists (OI). METHODS: Anonymous 22-question Web-based survey among physician members of SCCM and ESICM. RESULTS: Six hundred fifty-five responded (66% completion rate); 422 (65%) were OI, and 226 (35%) were NI...
January 21, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28159855/passive-leg-raising-may-serve-as-the-primary-method-to-quickly-assess-fluid-responsiveness-in-haemodynamically-unstable-patients
#7
Thomas Gv Cherpanath
No abstract text is available yet for this article.
February 3, 2017: Evidence-based Medicine
https://www.readbyqxmd.com/read/28149028/comparative-evaluation-of-central-venous-pressure-and-sonographic-inferior-vena-cava-variability-in-assessing-fluid-responsiveness-in-septic-shock
#8
Manjri Garg, Jyotsna Sen, Sandeep Goyal, Dhruva Chaudhry
OBJECTIVE: Fluid infusion, the most critical step in the resuscitation of patients with septic shock, needs preferably continuous invasive hemodynamic monitoring. The study was planned to evaluate the efficacy of ultrasonographically measured inferior vena cava collapsibility index (IVC CI) in comparison to central venous pressure (CVP) in predicting fluid responsiveness in septic shock. MATERIALS AND METHODS: Thirty-six patients of septic shock requiring ventilatory support (invasive/noninvasive) were included...
December 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28132006/ultrasound-and-nicom-in-the-assessment-of-fluid-responsiveness-in-patients-with-mild-sepsis-in-the-emergency-department-a-pilot-study
#9
Martha Oord, Tycho J Olgers, Mirjam Doff-Holman, Mark P M Harms, Jack J M Ligtenberg, Jan C Ter Maaten
OBJECTIVE: We investigated whether combining the caval index, assessment of the global contractility of the heart and measurement of stroke volume with Noninvasive Cardiac Output Monitoring (NICOM) can aid in fluid management in the emergency department (ED) in patients with sepsis. SETTING: A prospective observational single-centre pilot study in a tertiary care centre. PRIMARY AND SECONDARY OUTCOMES: Ultrasound was used to assess the caval index, heart contractility and presence of B-lines in the lungs...
January 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28119215/novel-methodology-for-accurate-resolution-of-fluid-signatures-from-multi-dimensional-nmr-well-logging-measurements
#10
Vivek Anand
A novel methodology for accurate fluid characterization from multi-dimensional nuclear magnetic resonance (NMR) well-logging measurements is introduced. This methodology overcomes a fundamental challenge of poor resolution of features in multi-dimensional NMR distributions due to low signal-to-noise ratio (SNR) of well-logging measurements. Based on an unsupervised machine-learning concept of blind source separation, the methodology resolves fluid responses from simultaneous analysis of large quantities of well-logging data...
January 12, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28094478/fluid-management-in-cardiac-surgery-patients-pitfalls-challenges-and-solutions
#11
Elena Bignami, Marcello Guarnieri, Marco Gemma
Fluid administration is a powerful tool for hemodynamic stabilization as it increases preload and improves cardiac function in fluid-responsive patients. However, there are various types of fluid to choose from. The use of colloids and crystalloids in non-cardiac Intensive Care Units (ICU) has been reported, showing controversial results. Many trials on sepsis in a non-cardiac ICU setting show that colloids, in particular hydroxyethyl starches and gelatins, might have a detrimental effect on kidney function, and on major outcomes such as mortality...
January 17, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28059848/hemodynamic-monitoring-in-thoracic-surgical-patients
#12
Jacob Raphael, Lindsay A Regali, Robert H Thiele
PURPOSE OF REVIEW: This article reviews the technology and clinical data describing hemodynamic monitoring devices available to anesthesiologists and intensivists caring for patients undergoing thoracic surgical procedures, so that they may better utilize available technology to improve outcomes in this high-risk surgical population. RECENT FINDINGS: Noninvasive stroke volume monitors are based on several different technology platforms, all of which have distinct performance characteristics...
January 3, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28050895/passive-leg-raise-testing-effectively-reduces-fluid-administration-in-septic-shock-after-correction-of-non-compliance-to-test-results
#13
Arjanne Rameau, Eldert de With, Evert Christiaan Boerma
BACKGROUND: Fluid resuscitation is considered a cornerstone of shock treatment, but recent data have underlined the potential hazards of fluid overload. The passive leg raise (PLR) test has been introduced as one of many strategies to predict 'fluid responsiveness.' The use of PLR testing is applicable to a wide range of clinical situations and has the potential to reduce fluid administration, since PLR testing is based upon (reversible) autotransfusion. Despite these theoretical advantages, data on the net effect on fluid balance as a result of PLR testing remain scarce...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28039243/electrical-impedance-tomography-for-non-invasive-assessment-of-stroke-volume-variation-in-health-and-experimental-lung-injury
#14
C J C Trepte, C Phillips, J Solà, A Adler, B Saugel, S Haas, S H Bohm, D A Reuter
BACKGROUND: Functional imaging by thoracic electrical impedance tomography (EIT) is a non-invasive approach to continuously assess central stroke volume variation (SVV) for guiding fluid therapy. The early available data were from healthy lungs without injury-related changes in thoracic impedance as a potentially influencing factor. The aim of this study was to evaluate SVV measured by EIT (SVVEIT) against SVV from pulse contour analysis (SVVPC) in an experimental animal model of acute lung injury at different lung volumes...
January 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28039242/non-invasive-assessment-of-fluid-responsiveness-using-cnap%C3%A2-technology-is-interchangeable-with-invasive-arterial-measurements-during-major-open-abdominal-surgery
#15
J Renner, M Gruenewald, M Hill, L Mangelsdorff, H Aselmann, C Ilies, M Steinfath, O Broch
BACKGROUND: Dynamic variables of fluid responsiveness (FR), such as pulse pressure variation (PPV), have been shown to predict the response to a fluid challenge accurately. A recently introduced non-invasive technology based on the volume-clamp method (CNAP™) offers the ability to measure PPV continuously (PPVCNAP). However, the accuracy regarding the prediction of FR in the operating room has to be proved. METHODS: We compared PPVCNAP with an invasive approach measuring PPV using the PiCCO technology (PPVPiCCO)...
January 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28030449/hemodynamic-monitoring-in-thoracic-surgical-patients
#16
Jacob Raphael, Lindsay A Regali, Robert H Thiele
PURPOSE OF REVIEW: This article reviews the technology and clinical data describing hemodynamic monitoring devices available to anesthesiologists and intensivists caring for patients undergoing thoracic surgical procedures, so that they may better utilize available technology to improve outcomes in this high-risk surgical population. RECENT FINDINGS: Noninvasive stroke volume monitors are based on several different technology platforms, all of which have distinct performance characteristics...
February 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28017906/distensibility-index-of-the-inferior-vena-cava-in-experimental-acute-respiratory-distress-syndrome
#17
R Mendes, M V Oliveira, G A Padilha, R S Santos, N N Rocha, R R Luiz, M G Abreu, P Pelosi, P R M Rocco, P L Silva
We determined the accuracy of distensibility index of inferior vena cava (dIVC) for evaluation of fluid responsiveness in rats with acute respiratory distress syndrome (ARDS) and validated this index for use in rat models. In protocol 1, E. coli lipopolysaccharide was administered in Wistar rats (n=7). After 24h, animals were mechanically ventilated, and stroke volume (SV) and dIVC quantified after blood drainage and subsequent volume expansion (albumin 20%). A receiver operating characteristic (ROC) curve was plotted to determine the optimal dIVC cutoff...
March 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/27984249/predicting-fluid-responsiveness-in-acute-liver-failure-a-prospective-study
#18
Vinod Kumar Audimoolam, Mark J W McPhail, Chris Willars, William Bernal, Julia A Wendon, Maurizio Cecconi, Georg Auzinger
BACKGROUND: The profound hemodynamic changes seen in acute liver failure (ALF) resemble the hyperdynamic state found in the later stages of septic shock. Vasopressor support frequently is required after initial volume therapy. Markers of preload dependency have not been studied in this patient group. Dynamic maneuvers such as passive leg raising or end-expiratory hold, which have shown good predictive accuracy in a general intensive care unit population, cannot be considered safe in this cohort because of the concerns of intracranial hypertension...
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27981285/utility-of-transthoracic-echocardiography-tte-in-assessing-fluid-responsiveness-in-critically-ill-patients-a-challenge-for-the-bedside-sonographer
#19
Wojciech Mielnicki, Agnieszka Dyla, Tomasz Zawada
Transthoracic echocardiography (TTE) has become one of the most important diagnostic tools in the treatment of critically ill patients. It allows clinicians to recognise potentially reversible life-threatening situations and is also very effective in the monitoring of the fluid status of patients, slowly substituting invasive methods in the intensive care unit. Hemodynamic assessment is based on a few static and dynamic parameters. Dynamic parameters change during the respiratory cycle in mechanical ventilation and the level of this change directly corresponds to fluid responsiveness...
December 5, 2016: Medical Ultrasonography
https://www.readbyqxmd.com/read/27940452/perioperative-goal-directed-haemodynamic-therapy-based-on-flow-parameters-a-concept-in-evolution
#20
L Meng, P M Heerdt
Haemodynamic management incorporating direct or surrogate stroke volume monitoring has experienced a rapid evolution, because of emergence of the "goal-directed therapy" concept and technological developments aimed at providing a parameter leading to the goal. Nonetheless, consensus on both definitions of the ideal "goal" and strategies for achieving it remain elusive. For this review, we first consider basic physiological and patient monitoring factors relevant to the concept of "fluid responsiveness", and then focus upon randomized controlled trials and meta-analyses involving goal-directed haemodynamic therapy based on various flow parameters...
December 2016: British Journal of Anaesthesia
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