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Pulse contour cardiac output

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https://www.readbyqxmd.com/read/28912128/aging-modifies-the-effect-of-cardiac-output-on-middle-cerebral-artery-blood-flow-velocity
#1
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/28857356/different-predictivity-of-fluid-responsiveness-by-pulse-pressure-variation-in-children-after-surgical-repair-of-ventricular-septal-defect-or-tetralogy-of-fallot
#2
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
#3
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
#4
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/28724041/effect-of-rhubarb-on-extravascular-lung-water-in-patients-with-acute-respiratory-distress-syndrome
#5
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/28685554/correlation-of-picco-ct-on-cardiac-output-index-value-and-prognosis-in-patients-with-heart-disease
#6
W Chang, L L Sun, N Ma, Z W Cui, R Q Sun, S J Zhang
The aim of this paper is to study the correlation between the cardiac output index value and the prognosis of patients with heart disease with the help of Pulse-induced Contour Cardiac Output (PICCO) and computed tomography (CT). Three hundred eighteen patients with pathologically confirmed heart disease were selected as study subjects. The Sime ns Av anto 1.6T type superconducting magnetic resonance meter and GE Light Speed Pro 48 slice spiral CT were used for the phased array coil scanning and enhanced scanning, respectively and to analyze the relationship between the cardiac output index value and prognosis in patients with heart disease with the help of PICCO and CT...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28645107/effects-of-liraglutide-on-hemodynamic-parameters-in-patients-with-heart-failure
#7
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
#8
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
#9
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/28540614/a-comparison-of-volume-clamp-method-based-continuous-noninvasive-cardiac-output-cnco-measurement-versus-intermittent-pulmonary-artery-thermodilution-in-postoperative-cardiothoracic-surgery-patients
#10
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/28460504/-the-predictive-value-of-dynamic-arterial-elastance-in-arterial-pressure-response-after-norepinephrine-dosage-reduction-in-patients-with-septic-shock
#11
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/28398907/cardiopulmonary-monitoring-of-shock
#12
James Simmons, Corey E Ventetuolo
PURPOSE OF REVIEW: We will briefly review the classification of shock and the hallmark features of each subtype. Available modalities for monitoring shock patients will be discussed, along with evidence supporting the use, common pitfalls, and practical considerations of each method. RECENT FINDINGS: As older, invasive monitoring methods such as the pulmonary artery catheter have fallen out of favor, newer technologies for cardiac output estimation, echocardiography, and noninvasive tests such as passive leg raising have gained popularity...
June 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28293809/a-mesenteric-traction-syndrome-affects-near-infrared-spectroscopy-evaluated-cerebral-oxygenation-because-skin-blood-flow-increases
#13
Niels D Olesen, Henrik Sørensen, Rikard Ambrus, Lars B Svendsen, Anton Lund, Niels H Secher
During abdominal surgery manipulation of internal organs may induce a "mesenteric traction syndrome" (MTS) including a triad of flushing, hypotension, and tachycardia that lasts for about 30 min. We evaluated whether MTS affects near-infrared spectroscopy (NIRS) assessed frontal lobe oxygenation (ScO2) by an increase in forehead skin blood flow (SkBF). The study intended to include 10 patients who developed MTS during pancreaticoduodenectomy and 22 patients were enrolled (age 61 ± 8 years; mean ± SD)...
March 14, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28188408/cross-comparisons-of-trending-accuracies-of-continuous-cardiac-output-measurements-pulse-contour-analysis-bioreactance-and-pulmonary-artery-catheter
#14
Bouchra Lamia, Hyung Kook Kim, Donald A Severyn, Michael R Pinsky
We compared the similarity of cardiac-output (CO) estimates between available bolus thermodilution pulmonary-artery catheters (PAC), arterial pulse-contour analysis (LiDCOplus(™), FloTrac(™) and PiCCOplus(™)), and bioreactance (NICOM(™)). Repetitive simultaneous estimates of CO obtained from the above devices were compared in 21 cardiac-surgery patients during the first 2 h post-surgery. Mean and absolute values for CO across the devices were compared by ANOVA, Bland-Altman, Pearson moment, and linear-regression analyses...
February 10, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28089598/impact-of-focused-intraoperative-transthoracic-echocardiography-by-anesthesiologists-on-management-in-hemodynamically-unstable-high-risk-noncardiac-surgery-patients
#15
Thomas Kratz, Thorsten Steinfeldt, Maik Exner, Marco Campo Dell Orto, Nina Timmesfeld, Caroline Kratz, Martin Skrodzki, Hinnerk Wulf, Martin Zoremba
OBJECTIVES: Focused transthoracic echocardiography (TTE) is used perioperatively for surgical patients. Intraoperative application of TTE is feasible, but its benefits remain unclear. The intention of this study was to investigate the effect of intraoperative TTE on the management of high-risk noncardiac surgery patients. DESIGN: A prospective interventional study. SETTING: Single-center university hospital. PARTICIPANTS: Fifty consecutive hemodynamically unstable high-risk patients anesthetized for noncardiac surgery...
April 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28017278/three-dimensional-transoesophageal-echocardiography-for-cardiac-output-in-critically-ill-patients-a-pilot-study-of-ultrasound-versus-the-thermodilution-method
#16
COMPARATIVE STUDY
Nadjib Hammoudi, Guillaume Hékimian, Florent Laveau, Marc Achkar, Richard Isnard, Alain Combes
BACKGROUND: Three-dimensional transoesophageal echocardiography (3D-TOE) is a new noninvasive tool for quantitative assessment of left ventricular (LV) volumes and ejection fraction. AIM: The objective of this pilot study was to evaluate the feasibility and accuracy of 3D-TOE for the estimation of cardiac output (CO), using transpulmonary thermodilution with the Pulse index Contour Continuous Cardiac Output (PiCCO) system as the reference method, in intensive care unit (ICU) patients...
January 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/27667769/patterns-of-perioperative-thoracic-fluid-indices-changes-in-liver-transplantation-with-or-without-postoperative-acute-lung-injury
#17
Kuang-Cheng Chan, Chun-Yu Wu, Ming-Hui Hung, Po-Huang Lee, Ya-Jung Cheng
BACKGROUND/PURPOSE: Postoperative acute lung injury (ALI) after liver transplantation is clinically relevant and common. The perioperative thoracic fluid indices changes as well as the association with ALI in liver transplantation have not been thoroughly investigated. METHODS: A total of 52 consecutive adult recipients for elective living donor liver transplantation were enrolled. Each recipient received the same perioperative care plan. Thoracic fluid indices, including the cardiac index, intrathoracic blood volume index (ITBVI), extravascular lung water index (EVLWI), and pulmonary vascular permeability index (PVPI), were obtained at seven time points (pretransplantation, anhepatic phase, 30 minutes after reperfusion, 2 hours after reperfusion, and postoperative days 1-3) using the pulse contour cardiac output system...
September 22, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27632347/adrb2-gly16gly-genotype-cardiac-output-and-cerebral-oxygenation-in-patients-undergoing-anesthesia-for-abdominal-aortic-aneurysm-surgery
#18
Jonatan Myrup Staalsø, Kim Zillo Rokamp, Niels D Olesen, Lars Lonn, Niels H Secher, Niels V Olsen, Teit Mantoni, Ulf Helgstrand, Henning B Nielsen
BACKGROUND: Gly16arg polymorphism of the adrenergic β2-receptor is associated with the elevated cardiac output (Q) in healthy gly16-homozygotic subjects. We questioned whether this polymorphism also affects Q and regional cerebral oxygen saturation (SCO2) during anesthesia in vascular surgical patients. METHODS: One hundred sixty-eight patients (age 71 ± 6 years) admitted for elective surgery were included. Cardiovascular variables were determined before and during anesthesia by intravascular pulse contour analysis (Nexfin) and SCO2 by cerebral oximetry (INVOS 5100C)...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27624218/ventilator-induced-central-venous-pressure-variation-can-predict-fluid-responsiveness-in-post-operative-cardiac-surgery-patients
#19
T G V Cherpanath, B F Geerts, J J Maas, R B P de Wilde, A B Groeneveld, J R Jansen
BACKGROUND: Ventilator-induced dynamic hemodynamic parameters such as stroke volume variation (SVV) and pulse pressure variation (PPV) have been shown to predict fluid responsiveness in contrast to static hemodynamic parameters such as central venous pressure (CVP). We hypothesized that the ventilator-induced central venous pressure variation (CVPV) could predict fluid responsiveness. METHODS: Twenty-two elective cardiac surgery patients were studied post-operatively on the intensive care unit during mechanical ventilation with tidal volumes of 6-8 ml/kg without spontaneous breathing efforts or cardiac arrhythmia...
November 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/27603405/adrenal-pheochromocytoma-presenting-with-takotsubo-pattern-cardiomyopathy-and-acute-heart-failure-a-case-report-and-literature-review
#20
REVIEW
Yi-Lun Chiang, Pei-Chi Chen, Chin-Cheng Lee, Su-Kiat Chua
BACKGROUND: Pheochromocytoma is an endocrine tumor that causes hypertension, facial pallor, and headache. Pheochromocytoma patients rarely present with acute heart failure or cardiogenic shock. METHOD: We discuss the case of a female patient with Takotsubo-pattern cardiomyopathy who presented with acute heart failure caused by pheochromocytoma. RESULT: Treatment was adjusted based on the data of the pulse contour cardiac output system. After intensive hydration and medication for heart failure, the condition of the patient stabilized...
September 2016: Medicine (Baltimore)
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