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https://www.readbyqxmd.com/read/28984797/validation-of-radial-artery-based-uncalibrated-pulse-contour-method-pulsioflex-in-critically-ill-patients-a-observational-study
#1
Jörn Grensemann, Jerome M Defosse, Meike Willms, Uwe Schiller, Frank Wappler, Samir G Sakka
BACKGROUND: Because of their simplicity, uncalibrated pulse contour (UPC) methods have been introduced into clinical practice in critical care but are often validated with a femoral arterial waveform. OBJECTIVE: We aimed to test the accuracy of cardiac index (CI) measurements and trending ability from a radial artery with one UPC. DESIGN: An observational study. SETTING: Tertiary care mixed-surgical ICU. Data were obtained from April 2015 to July 2016...
November 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28977981/effects-of-liraglutide-on-hemodynamic-parameters-in-patients-with-heart-failure
#2
Jin Ying Zhang, Xin Yun Wang, Xiang Wang
Glucagon-like peptide-1 analogues improve left ventricular function in patients with acute myocardial infarction. This study aimed to evaluate the effects of liraglutide on hemodynamic parameters in patients with heart failure. A total of 78 patients with heart failure were enrolled in this study between August 2014 and November 2015. Of these, 52 patients were randomized 1:1 to receive either liraglutide or placebo for 7 days. Hemodynamic measurements were made using transpulmonary thermodilution and arterial pulse contour analysis...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28975529/pulse-contour-analysis-of-arterial-waveform-in-a-high-fidelity-human-patient-simulator
#3
Paolo Persona, Elisabetta Saraceni, Francesca Facchin, Enrico Petranzan, Matteo Parotto, Fabio Baratto, Carlo Ori, Sandra Rossi
The measurement of cardiac output (CO) may be useful to improve the assessment of hemodynamics during simulated scenarios. The purpose of this study was to evaluate the feasibility of introducing an uncalibrated pulse contour device (MostCare, Vytech, Vygon, Padova, Italy) into the simulation environment. MostCare device was plugged to a clinical monitor and connected to the METI human patient simulator (HPS) to obtain a continuous arterial waveform analysis and CO calculation. In six different simulated clinical scenarios (baseline, ventricular failure, vasoplegic shock, hypertensive crisis, hypovolemic shock and aortic stenosis), the HPS-CO and the MostCare-CO were simultaneously recorded...
October 3, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28969329/perioperative-goal-directed-therapy-with-uncalibrated-pulse-contour-methods-impact-on-fluid-management-and-postoperative-outcome
#4
A Perel
No abstract text is available yet for this article.
September 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28912128/aging-modifies-the-effect-of-cardiac-output-on-middle-cerebral-artery-blood-flow-velocity
#5
Anne-Sophie G T Bronzwaer, Jasper Verbree, Wim J Stok, Mat J A P Daemen, Mark A van Buchem, Matthias J P van Osch, Johannes J van Lieshout
An association between cerebral blood flow (CBF) and cardiac output (CO) has been established in young healthy subjects. As of yet it is unclear how this association evolves over the life span. To that purpose, we continuously recorded mean arterial pressure (MAP; finger plethysmography), CO (pulse contour; CO-trek), mean blood flow velocity in the middle cerebral artery (MCAV; transcranial Doppler ultrasonography), and end-tidal CO2 partial pressure (PetCO2) in healthy young (19-27 years), middle-aged (51-61 years), and elderly subjects (70-79 years)...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28872487/validation-of-radial-artery-based-uncalibrated-pulse-contour-method-pulsioflex-in-an-unselected-cohort-of-critically-ill-patients
#6
Jörn Grensemann, Jerome M Defosse, Meike Willms, Uwe Schiller, Frank Wappler, Samir G Sakka
BACKGROUND: Because of their simplicity, uncalibrated pulse contour (UPC) methods have been introduced into clinical practice in critical care but are often validated with a femoral arterial waveform. OBJECTIVE: We aimed to test the accuracy of cardiac index (CI) measurements and trending ability from a radial artery with one UPC. SETTING: Tertiary care mixed-surgical ICU. Data were obtained from April 2015 to July 2016. PATIENTS: We studied 20 critically ill mechanically ventilated patients monitored by UPC (PulsioFlex; Pulsion Medical Systems SE, Munich, Germany)...
September 1, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28857907/predicting-fluid-responsiveness-in-critically-ill-patients-by-using-combined-end-expiratory-and-end-inspiratory-occlusions-with-echocardiography
#7
Mathieu Jozwiak, François Depret, Jean-Louis Teboul, Jean-Emmanuel Alphonsine, Christopher Lai, Christian Richard, Xavier Monnet
OBJECTIVES: First, we aimed at assessing whether fluid responsiveness is predicted by the effects of an end-expiratory occlusion on the velocity-time integral of the left ventricular outflow tract. Second, we investigated whether adding the effects of an end-inspiratory occlusion and of an end-expiratory occlusion on velocity-time integral can predict fluid responsiveness with similar reliability than end-expiratory occlusion alone but with a higher threshold, which might be more compatible with the precision of echocardiography...
November 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28857356/different-predictivity-of-fluid-responsiveness-by-pulse-pressure-variation-in-children-after-surgical-repair-of-ventricular-septal-defect-or-tetralogy-of-fallot
#8
Ding Han, Shoudong Pan, Xiaonan Wang, Qingyan Jia, Yi Luo, Jia Li, Chuan Ou-Yang
BACKGROUND: Pulse pressure variation derived from the varied pulse contour method is based on heart-lung interaction during mechanical ventilation. It has been shown that pulse pressure variation is predictive of fluid responsiveness in children undergoing surgical repair of ventricular septal defect. Right ventricle compliance and pulmonary vascular capacitance in children with tetralogy of Fallot are underdeveloped as compared to those in ventricular septal defect. We hypothesized that the difference in the right ventricle-pulmonary circulation in the two groups of children would affect the heart-lung interaction and therefore pulse pressure variation predictivity of fluid responsiveness following cardiac surgery...
August 31, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28822023/pulse-contour-derived-cardiac-output-measurements-in-morbid-obesity-influence-of-actual-ideal-and-adjusted-bodyweight
#9
Chantal A Boly, Pieter Schraverus, Floris van Raalten, Jan-Willem Coumou, Christa Boer, Simone van Kralingen
The non-invasive Nexfin cardiac output (CO) monitor shows a low level of agreement with the gold standard thermodilution method in morbidly obese patients. Here we investigate whether this disagreement is related to excessive bodyweight, and can be improved when bodyweight derivatives are used instead. We performed offline analyses of cardiac output recordings of patient data previously used and partly published in an earlier study by our group. In 30 morbidly obese patients (BMI > 35 kg/m(2)) undergoing laparoscopic gastric bypass, cardiac output was simultaneously determined with PiCCO thermodilution and Nexfin pulse-contour method...
August 18, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28798205/cardiac-output-by-pulse-contour-analysis-does-not-match-the-increase-measured-by-rebreathing-during-human-spaceflight
#10
Richard L Hughson, Sean D Peterson, Nicholas J Yee, Danielle K Greaves
Pulse contour analysis of the non-invasive finger arterial pressure waveform provides a convenient means to estimate cardiac output (Q ̇). The method has been compared to standard methods under a range of conditions but never before during spaceflight. We compared pulse contour analysis with the Modelflow algorithm to estimates of Q ̇ obtained by rebreathing during pre-flight baseline testing and during the final month of long-duration spaceflight in nine healthy male astronauts. By Modelflow analysis, stroke volume was greater in supine baseline than seated baseline or inflight...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28742783/end-expiratory-occlusion-test-predicts-fluid-responsiveness-in-patients-with-protective-ventilation-in-the-operating-room
#11
Matthieu Biais, Mathilde Larghi, Jeremy Henriot, Hugues de Courson, Musa Sesay, Karine Nouette-Gaulain
BACKGROUND: End-expiratory occlusion test (EEOT) has been proposed to predict fluid responsiveness in mechanically ventilated intensive care unit patients. The utility of this test during low-tidal-volume ventilation remains uncertain. This study aimed to determine whether hemodynamic variations induced by EEOT could predict the effect of volume expansion in patients with protective ventilation in the operating room. METHODS: Forty-one patients undergoing neurosurgery were included...
July 21, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28724041/effect-of-rhubarb-on-extravascular-lung-water-in-patients-with-acute-respiratory-distress-syndrome
#12
RANDOMIZED CONTROLLED TRIAL
Jianxin He, Xiaoshui Si, Mingxia Ji, Jing Huang, Wenjuan Zheng, Jiao Wang, Junfeng Wang, Lijun Zhu
Objective: The aim of this study was to evaluate the effect of rhubarb on extravascular lung water (EVLW) in patients with acute respiratory distress syndrome (ARDS). Method: A total of 80 patients with ARDS were randomly divided into a treatment group (40 cases) and control group (40 cases). Patients in the treatment group received rhubarb (30.0 g/d) and patients in the control group received conventional therapy for seven consecutive days. Extravascular lung water index (EVLWI) and pulmonary vascular permeability index (PVPI) were determined using pulse contour cardiac output (PiCCO) technology, and the oxygenation index was measured by blood gas analysis at baseline and on days 3, 5 and 7 after treatment...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28645107/effects-of-liraglutide-on-hemodynamic-parameters-in-patients-with-heart-failure
#13
Jin Ying Zhang, Xin Yun Wang, Xiang Wang
Glucagon-like peptide-1 analogues improve left ventricular function in patients with acute myocardial infarction. This study aimed to evaluate the effects of liraglutide on hemodynamic parameters in patients with heart failure. A total of 78 patients with heart failure were enrolled in this study between August 2014 and November 2015. Of these, 52 patients were randomized 1:1 to receive either liraglutide or placebo for 7 days. Hemodynamic measurements were made using transpulmonary thermodilution and arterial pulse contour analysis...
June 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28640019/mini-fluid-challenge-of-100%C3%A2-ml-of-crystalloid-predicts-fluid-responsiveness-in-the-operating-room
#14
Matthieu Biais, Hugues de Courson, Romain Lanchon, Bruno Pereira, Guillaume Bardonneau, Marion Griton, Musa Sesay, Karine Nouette-Gaulain
BACKGROUND: Mini-fluid challenge of 100 ml colloids is thought to predict the effects of larger amounts of fluid (500 ml) in intensive care units. This study sought to determine whether a low quantity of crystalloid (50 and 100 ml) could predict the effects of 250 ml crystalloid in mechanically ventilated patients in the operating room. METHODS: A total of 44 mechanically ventilated patients undergoing neurosurgery were included. Volume expansion (250 ml saline 0...
September 2017: Anesthesiology
https://www.readbyqxmd.com/read/28625165/transpulmonary-thermodilution-advantages-and-limits
#15
REVIEW
Xavier Monnet, Jean-Louis Teboul
BACKGROUND: For complex patients in the intensive care unit or in the operating room, many questions regarding their haemodynamic management cannot be answered with simple clinical examination. In particular, arterial pressure allows only a rough estimation of cardiac output. Transpulmonary thermodilution is a technique that provides a full haemodynamic assessment through cardiac output and other indices. MAIN BODY: Through the analysis of the thermodilution curve recorded at the tip of an arterial catheter after the injection of a cold bolus in the venous circulation, transpulmonary thermodilution intermittently measures cardiac output...
June 19, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28605442/perioperative-goal-directed-therapy-with-uncalibrated-pulse-contour-methods-impact-on-fluid-management-and-postoperative-outcome
#16
F Michard, M T Giglio, N Brienza
Previous meta-analyses suggest that perioperative goal-directed therapy (GDT) is useful to decrease postoperative morbidity. Most GDT studies analysed were done with pulmonary artery catheters, oesophageal Doppler and calibrated pulse contour methods. Uncalibrated pulse contour (uPC) techniques are an appealing alternative but their accuracy has been questioned. The effects of GDT on fluid management (volumes and volume variability) remain unclear. We performed a meta-analysis of randomized controlled trials investigating the effects of GDT with uPC methods on postoperative outcome...
July 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28540614/a-comparison-of-volume-clamp-method-based-continuous-noninvasive-cardiac-output-cnco-measurement-versus-intermittent-pulmonary-artery-thermodilution-in-postoperative-cardiothoracic-surgery-patients
#17
Julia Y Wagner, Annmarie Körner, Leonie Schulte-Uentrop, Mathias Kubik, Hermann Reichenspurner, Stefan Kluge, Daniel A Reuter, Bernd Saugel
The CNAP technology (CNSystems Medizintechnik AG, Graz, Austria) allows continuous noninvasive arterial pressure waveform recording based on the volume clamp method and estimation of cardiac output (CO) by pulse contour analysis. We compared CNAP-derived CO measurements (CNCO) with intermittent invasive CO measurements (pulmonary artery catheter; PAC-CO) in postoperative cardiothoracic surgery patients. In 51 intensive care unit patients after cardiothoracic surgery, we measured PAC-CO (criterion standard) and CNCO at three different time points...
May 24, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28482384/-effects-and-mechanisms-of-high-volume-hemofiltration-on-endotoxin-induced-acute-lung-injury-of-piglets
#18
W M Chen, G F Yan, Z J Lu, G P Lu
Objective: To compare the effects of high-volume hemofiltration (HVHF) and continuous veno-venous hemofiltration (CVVH) on cardiopulmonary functions, lung fluid balance, lung damage and cytokine expression in endotoxin-induced acute lung injury piglet model, and to further evaluate the value of high-volume hemofiltration in acute lung injury. Method: Eighteen piglets were randomly divided into the control group (6 piglets), the CVVH group (6 piglets) and the HVHF group (6 piglets). By general anesthesia, the intravenous infusion of 0...
May 4, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28460504/-the-predictive-value-of-dynamic-arterial-elastance-in-arterial-pressure-response-after-norepinephrine-dosage-reduction-in-patients-with-septic-shock
#19
F M Liang, T Yang, L Dong, J J Hui, J Yan
Objective: To assess whether dynamic arterial elastance(Ea(dyn))can be used to predict the reduction of arterial pressure after decreasing norepinephrine (NE) dosage in patients with septic shock. Methods: A prospective observational cohort study was conducted. Thirty-two patients with septic shock and mechanical ventilationwere enrolledfrom January 2014 to December 2015 in ICU of Wuxi People's Hospital of Nanjing Medical University. Hemodynamic parameters were recorded by pulse contour cardiac output(PiCCO)monitoring technology before and after decreasing norepinephrine dosage...
May 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28440110/in-parallel-connected-intermittent-hemodialysis-through-ecmo-does-not-affect-hemodynamic-parameters-derived-from-transpulmonary-thermodilution
#20
Tobias Lahmer, Ulrich Mayr, Sebastian Rasch, Gonzalo Batres Baires, Roland M Schmid, Wolfgang Huber
INTRODUCTION: We report a case of renal replacement therapy (RRT) during extracorporeal membrane oxygenation (ECMO) via a single venous access and analyze the feasibility of transpulmonary thermodilution (TPTD) for hemodynamic monitoring. CASE REPORT: ECMO and RRT connected into the ECMO-extracorporeal circuit were performed via a single venous access because of multiple venous thromboses. An indicator for TPTD and pulse contour analysis (PCA) was applied into the central venous catheter (CVC) placed in the right vena jugularis...
April 1, 2017: Perfusion
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