keyword
MENU ▼
Read by QxMD icon Read
search

"Pulse contour"

keyword
https://www.readbyqxmd.com/read/28482384/-effects-and-mechanisms-of-high-volume-hemofiltration-on-endotoxin-induced-acute-lung-injury-of-piglets
#1
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
#2
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
#3
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
https://www.readbyqxmd.com/read/28426506/applications-of-noninvasive-hemodynamic-monitoring-in-obstetric-management
#4
John T Sullivan
Clinicians managing obstetric patients are dependent on valid hemodynamic measurements to guide care. Heart rate and noninvasive blood pressure guide most current care. New hemodynamic monitors are being used to report research findings and are being investigated by clinicians for their value to supplement standard monitoring. These include arterial pulse contour analysis, Doppler velocimetry, and bioimpedance among others. This chapter serves to present these new devices with a critical review of their advantages and limitations, and most importantly the validity of their measurements...
June 2017: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28398907/cardiopulmonary-monitoring-of-shock
#5
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/28380408/haemodynamic-changes-with-paracetamol-in-critically-ill-children
#6
Samiran Ray, Thomas Brick, Sainath Raman, Paul J Birrell, Nigel J Klein, Mark J Peters
PURPOSE: Paracetamol has been associated with a reduction in blood pressure, especially in febrile, critically-ill adults. We hypothesised that blood pressure would fall following administration of paracetamol in critically-ill children and this effect would be greater during fever and among children with a high body surface area to weight ratio. METHODS: A 12-month prospective observational study of children (0-16years) admitted to paediatric intensive care, who underwent pulse contour analysis and received paracetamol concurrently...
March 30, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28327093/continuous-non-invasive-finger-cuff-caretaker%C3%A2-comparable-to-invasive-intra-arterial-pressure-in-patients-undergoing-major-intra-abdominal-surgery
#7
Irwin Gratz, Edward Deal, Francis Spitz, Martin Baruch, I Elaine Allen, Julia E Seaman, Erin Pukenas, Smith Jean
BACKGROUND: Despite increased interest in non-invasive arterial pressure monitoring, the majority of commercially available technologies have failed to satisfy the limits established for the validation of automatic arterial pressure monitoring by the Association for the Advancement of Medical Instrumentation (AAMI). According to the ANSI/AAMI/ISO 81060-2:2013 standards, the group-average accuracy and precision are defined as acceptable if bias is not greater than 5 mmHg and standard deviation is not greater than 8 mmHg...
March 21, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28293809/a-mesenteric-traction-syndrome-affects-near-infrared-spectroscopy-evaluated-cerebral-oxygenation-because-skin-blood-flow-increases
#8
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
#9
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/28121246/associations-of-objectively-measured-physical-activity-and-sedentary-time-with-arterial-stiffness-in-pre-pubertal-children
#10
Eero A Haapala, Juuso Väistö, Aapo Veijalainen, Niina Lintu, Petri Wiklund, Kate Westgate, Ulf Ekelund, Virpi Lindi, Soren Brage, Timo A Lakka
PURPOSE: To investigate the relationships of objectively measured physical activity (PA) and sedentary time (ST) to arterial stiffness in pre-pubertal children. METHOD: Altogether 136 children (57 boys, 79 girls) aged 6-8-years participated in the study. Stiffness index (SI) was assessed by pulse contour analysis based on photoplethysmography. ST, light PA, moderate PA, and vigorous PA were assessed using combined acceleration and heart rate monitoring. We investigated the associations of ST (<1...
January 25, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28089598/impact-of-focused-intraoperative-transthoracic-echocardiography-by-anesthesiologists-on-management-in-hemodynamically-unstable-high-risk-noncardiac-surgery-patients
#11
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/28067706/impact-of-systemic-vascular-resistance-on-the-accuracy-of-the-pulsioflex-device
#12
Matthieu Biais, Elodie Mazocky, Laurent Stecken, Bruno Pereira, Musa Sesay, Stéphanie Roullet, Alice Quinart, François Sztark
BACKGROUND: The accuracy of currently available devices using pulse contour analysis without external calibration for cardiac index (CI) estimation is negatively impacted by hyperdynamic states, low systemic vascular resistance (SVR), and abrupt changes in SVR. The aim of this study was to evaluate the accuracy of a new device, the Pulsioflex (Pulsion Medical System), in patients undergoing liver transplantation. METHODS: Thirty consecutive patients scheduled for liver transplantation were included...
February 2017: Anesthesia and Analgesia
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/27984249/predicting-fluid-responsiveness-in-acute-liver-failure-a-prospective-study
#15
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/27923782/comparing-arterial-function-parameters-for-the-prediction-of-coronary-heart-disease-events-the-multi-ethnic-study-of-atherosclerosis-mesa
#16
Elizabeth K Hom, Daniel A Duprez, David R Jacobs, David A Bluemke, Lyndia C Brumback, Joseph F Polak, Carmen A Peralta, Philip Greenland, Sheryl L Magzamen, João A C Lima, Alban Redheuil, David M Herrington, James H Stein, Dhananjay Vaidya, Pamela Ouyang, Joel D Kaufman
Arterial dysfunction has been linked to decline in cardiac function and increased risk of cardiovascular disease events. We calculated the value of arterial function, measured at baseline (2000-2002), in predicting time to first coronary heart disease (CHD) event (median follow-up, 10.2 years) among participants in the Multi-Ethnic Study of Atherosclerosis (MESA). Measures included the following: C1 and C2, derived from diastolic pulse contour analysis from the radial artery blood pressure waveform obtained by tonometry (n = 6,336); carotid distensibility and Young's elastic modulus at the carotid artery, derived from carotid artery ultrasonography (n = 6,531 and 6,528); and aortic distensibility, measured using cardiac magnetic resonance imaging (n = 3,677)...
December 15, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/27923330/the-influence-of-race-length-on-arterial-compliance-following-an-ultra-endurance-marathon
#17
Alis Bonsignore, Shannon S D Bredin, Holly Wollmann, Barb Morrison, Andrew Jeklin, Lauren Buschmann, Josh Robertson, Elizabeth Jean Buckler, Duncan McGuinty, Mark S Rice, Darren E R Warburton
There is inconclusive evidence concerning the effects of routine participation in ultra-endurance events on cardiovascular disease (CVD) risk. Arterial compliance is a reliable, non-invasive, and effective tool for evaluating CVD risk. The purpose of this research was to examine if race length influences acute changes in arterial compliance following an ultra-marathon event. A total of 46 ultra-marathon runners were recruited including 21 participants (39.8 ± 8.3 years, 6 females) in the 80-km event and 25 participants (43...
May 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/27849826/183-comparison-between-echocardiography-and-uncalibrated-pulse-contour-method-co-measurement-in-vv-ecmo
#18
Ottavia Bond, Selene Pozzebon, Sabino Scolletta, Federico Franchi, Federica Zama Cavicchi, Jacques Creteur, Jean-Louis Vincent, Fabio Silvio Taccone
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27817009/applicability-of-stroke-volume-variation-in-patients-of-a-general-intensive-care-unit-a-longitudinal-observational-study
#19
Sebastian Mair, Julia Tschirdewahn, Simon Götz, Johanna Frank, Veit Phillip, Benedikt Henschel, Caroline Schultheiss, Ulrich Mayr, Sebastian Noe, Matthias Treiber, Roland M Schmid, Bernd Saugel, Wolfgang Huber
Sinus rhythm (SR) and controlled mechanical ventilation (CV) are mandatory for the applicability of respiratory changes of the arterial curve such as stroke volume variation (SVV) to predict fluid-responsiveness. Furthermore, several secondary limitations including tidal volumes <8 mL/kg and SVV-values within the "gray zone" of 9-13% impair prediction of fluid-responsiveness by SVV. Therefore, we investigated the prevalence of these four conditions in general ICU-patients. This longitudinal observational study analyzed a prospectively maintained haemodynamic database including 4801 transpulmonary thermodilution and pulse contour analysis measurements of 278 patients (APACHE-II 21...
November 5, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27802696/features-of-the-non-contact-carotid-pressure-waveform-cardiac-and-vascular-dynamics-during-rebreathing
#20
S Casaccia, E J Sirevaag, E J Richter, J A O'Sullivan, L Scalise, J W Rohrbaugh
This report amplifies and extends prior descriptions of the use of laser Doppler vibrometry (LDV) as a method for assessing cardiovascular activity, on a non-contact basis. A rebreathing task (n = 35 healthy individuals) was used to elicit multiple effects associated with changes in autonomic drive as well as blood gases including hypercapnia. The LDV pulse was obtained from two sites overlying the carotid artery, separated by 40 mm. A robust pulse signal was obtained from both sites, in accord with the well-described changes in carotid diameter over the blood pressure cycle...
October 2016: Review of Scientific Instruments
keyword
keyword
10564
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"