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Esophageal Doppler monitor

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https://www.readbyqxmd.com/read/29768341/the-plethysmographic-variability-index-does-not-predict-fluid-responsiveness-estimated-by-esophageal-doppler-during-kidney-transplantation-a-controlled-study
#1
Morgan Le Guen, Arnaud Follin, Etienne Gayat, Marc Fischler
Research is ongoing to find a noninvasive method of monitoring, which can predict fluid responsiveness in patients undergoing kidney transplantation.To compare the responses to fluid challenges with the Pleth Variability Index, a noninvasive dynamic index derived from plethysmographic variability (Radical 7 pulse oximeter; Masimo Corporation, Irvine, CA), and the esophageal Doppler, the criterion standard.Observational study.University hospital; study from May 2011 and May 2012.Forty-eight patients with end-renal function were included and 44 analyzed...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29756693/multi-parametric-functional-hemodynamic-optimization-improves-postsurgical-outcome-after-intermediate-risk-open-gastrointestinal-surgery-a-randomized-controlled-trial
#2
Pavel Szturz, Pavel Folwarczny, Roman Kula, Jan Neiser, Pavel Ševčík, Jan Benes
BACKGROUND: Perioperative goal directed therapy (pGDT) using flow monitoring has been associated with improved outcomes. However, its protocols are often based on stroke volume only: as a target for fluid loading, inotropic support and vasopresors (via mathematical coupling of systemic vascular resistance). In this trial, we have tested the multi- parametric pGDT protocol based on esophageal Doppler variables (corrected flow time, peak velocity) in intermediate-to-high risk patients undergoing gastrointestinal surgery...
May 11, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29701760/optical-techniques-for-perfusion-monitoring-of-the-gastric-tube-after-esophagectomy-a-review-of-technologies-and-thresholds
#3
S M Jansen, D M de Bruin, M I van Berge Henegouwen, S D Strackee, D P Veelo, T G van Leeuwen, S S Gisbertz
Anastomotic leakage is one of the most severe complications after esophageal resection with gastric tube reconstruction. Impaired perfusion of the gastric fundus is seen as the main contributing factor for this complication. Optical modalities show potential in recognizing compromised perfusion in real time, when ischemia is still reversible. This review provides an overview of optical techniques with the aim to evaluate the (1) quantitative measurement of change in perfusion in gastric tube reconstruction and (2) to test which parameters are the most predictive for anastomotic leakage...
April 26, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29679768/comparison-of-proaqt-pulsioflex%C3%A2-and-oesophageal-doppler-for-intraoperative-haemodynamic-monitoring-during-intermediate-risk-abdominal-surgery
#4
Grégoire Weil, Cyrus Motamed, Alexandre Eghiaian, Xavier Monnet, Stéphanie Suria
OBJECTIVE: To compare cardiac index (CI) between Proaqt/PulsioFlex® and esophageal Doppler (OD) and the ability of the PulsioFlex® to track CI changes induced by fluid challenge and secondly to assess the impact of the time interval between two auto-calibrations of PulsioFlex® on the accuracy of the measured CI. METHODS: In a single hospital, 49 intermediate-risk oncologic abdominal surgery patients were included in an observational study. We measured the cardiac Index (CI) provided by OD and by the Proaqt/PulsioFlex® before and after internal calibration, which were performed randomly at specific intervals after the initial one (30, 60, 90 and 120min)...
April 18, 2018: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29649794/effects-of-volume-overload-and-current-techniques-for-the-assessment-of-fluid-status-in-patients-with-renal-disease
#5
Can Ekinci, Merve Karabork, Dimitrie Siriopol, Neris Dincer, Adrian Covic, Mehmet Kanbay
Volume overload is an important, may be the foremost, independent prognostic factor determining the outcome of hemodialysis patients. Therefore, it is crucial to measure fluid status of these patients and avoid volume overload. This review aims to evaluate volume overload, its effects on patients with renal diseases and current methodologies measuring volume status in the body. These techniques will be first classified as clinical evaluation and non-clinical and/or instrumental techniques, which includes biomarkers, ultrasonography, relative blood volume monitoring, bioimpedance, echocardiography, pulmonary artery catheterization, esophageal and/or suprasternal Doppler, and blood viscosity...
2018: Blood Purification
https://www.readbyqxmd.com/read/29621027/cardiac-output-monitoring-how-to-choose-the-optimal-method-for-the-individual-patient
#6
Bernd Saugel, Jean-Louis Vincent
PURPOSE OF REVIEW: To review the different methods available for the assessment of cardiac output (CO) and describe their specific indications in intensive care and perioperative medicine. RECENT FINDINGS: In critically ill patients, persistent circulatory shock after initial resuscitation is an indication for the assessment of CO to monitor the response to fluids and vasoactive agents. In patients with circulatory shock associated with right ventricular dysfunction, pulmonary artery hypertension, or acute respiratory distress syndrome, invasive CO monitoring using indicator dilution methods is indicated...
June 2018: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/29606730/effect-of-different-analgesic-techniques-on-hemodynamic-variables-recorded-with-an-esophageal-doppler-monitor-during-ovariohysterectomy-in-dogs
#7
Ignacio Sández, María Soto, Daniel Torralbo, Eva Rioja
This study compared the efficacy of intravenous (IV) fentanyl and ketamine with lumbosacral epidural lidocaine in dogs undergoing ovariohysterectomy. Dogs with esophageal Doppler monitoring ( n = 112) were included in this retrospective study. All dogs were premedicated with dexmedetomidine and methadone, induced with IV propofol or alfaxalone and maintained using isoflurane and IV fentanyl, IV ketamine, or epidural lidocaine. Heart rate (HR), mean arterial pressure (MAP), expired fraction of isoflurane (ETIso), stroke distance (SD), minute distance (MD), peak velocity (PV) and mean acceleration (MA) were recorded before and after ligation of the ovarian pedicle (OvP)...
April 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29391766/beneficial-long-term-effect-of-a-phosphodiesterase-5-inhibitor-in-cirrhotic-portal-hypertension-a-case-report-with-8-years-follow-up
#8
Peter Deibert, Adhara Lazaro, Zoran Stankovic, Denise Schaffner, Martin Rössle, Wolfgang Kreisel
Non-selective beta-blockers are the mainstay of medical therapy for portal hypertension in liver cirrhosis. Inhibitors of phosphodiesterase-5 (PDE-5-inhibitors) reduce portal pressure in the acute setting by > 10% which may suggest a long-term beneficial effect. Currently, there is no available data on long-term treatment of portal hypertension with PDE-5-inhibitors. This case of a patient with liver cirrhosis secondary to autoimmune liver disease with episodes of bleeding from esophageal varices is the first documented case in which a treatment with a PDE-5-inhibitor for eight years was monitored...
January 21, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28543052/norepinephrine-reduces-arterial-compliance-less-than-phenylephrine-when-treating-general-anesthesia-induced-arterial-hypotension
#9
COMPARATIVE STUDY
F Vallée, O Passouant, A Le Gall, J Joachim, J Mateo, A Mebazaa, E Gayat
INTRODUCTION: During general anesthesia, arterial hypotension is frequent and may be an important contributor to perioperative morbidity. We assessed the effect of a 5 μg bolus of Norepinephrine (NA) when compared with 50 μg bolus of Phenylephrine (PE) administered to treat hypotension during maintenance anesthesia, on MAP, derived cardiac output and arterial stiffness parameters. METHODS: Patients scheduled for a neurosurgical procedure under general anesthesia were prospectively included...
July 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28391426/comparison-of-stroke-volume-measurement-between-non-invasive-bioreactance-and-esophageal-doppler-in-patients-undergoing-major-abdominal-pelvic-surgery
#10
COMPARATIVE STUDY
Gennaro De Pascale, Mervyn Singer, David Brealey
PURPOSE: Bioreactance is a non-invasive technology for measuring stroke volume (SV) in the operating room and critical care setting. We evaluated how the NICOM® bioreactance device performed against the CardioQ® esophageal Doppler monitor in patients undergoing major abdominal-pelvic surgery, focusing on the effect of different hemodynamic interventions. METHODS: SVNICOM and SVODM were simultaneously measured intraoperatively, including before and after interventions including fluid challenge, vasopressor boluses, peritoneal gas insufflation/removal, and Trendelenburg/reverse Trendelenburg patient positioning...
August 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28108832/beat-by-beat-assessment-of-cardiac-afterload-using-descending-aortic-velocity-pressure-loop-during-general-anesthesia-a-pilot-study
#11
Fabrice Vallée, Arthur Le Gall, Jona Joachim, Olivier Passouant, Joaquim Matéo, Arnaud Mari, Sandrine Millasseau, Alexandre Mebazaa, Etienne Gayat
Continuous cardiac afterload evaluation could represent a useful tool during general anesthesia (GA) to titrate vasopressor effect. Using beat to beat descending aortic pressure(P)/flow velocity(U) loop obtained from esophageal Doppler and femoral pressure signals might allow to track afterload changes. Methods We defined three angles characterizing the PU loop (alpha, beta and Global After-Load Angle (GALA)). Augmentation index (AIx) and total arterial compliance (Ctot) were measured via radial tonometry. Peripheral Vascular Resistances (PVR) were also calculated...
February 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27687456/comparison-of-esophageal-doppler-and-plethysmographic-variability-index-to-guide-intraoperative-fluid-therapy-for-low-risk-patients-undergoing-colorectal-surgery
#12
RANDOMIZED CONTROLLED TRIAL
Samantha R Warnakulasuriya, Simon J Davies, R Jonathan T Wilson, David R A Yates
STUDY OBJECTIVE: This study aims to investigate if there is equivalence in volumes of fluid administered when intravenous fluid therapy is guided by Pleth Variability Index (PVI) compared to the established technology of esophageal Doppler in low-risk patients undergoing major colorectal surgery. DESIGN: Randomized controlled trial. SETTING: Operating room. PATIENTS: Forty low-risk patients undergoing elective colorectal surgery...
November 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27532782/intraoperative-fluid-management-guided-by-esophageal-doppler-monitoring-in-major-abdominal-surgery-utilizing-the-enhanced-recovery-after-surgery-program-a-systematic-review-protocol
#13
Lindsay Wuellner, Lisa Sutton
The objectives of this review are to identify the effectiveness of esophageal Doppler monitoring (EDM) for goal-directed fluid therapy on postoperative outcomes during abdominal surgery when an enhanced recovery after surgery (ERAS) program is implemented.The specific question of this review is: does the guidance of fluid management by EDM versus fluid management without EDM affect the length of hospital stay, occurrence of postoperative infection, hemodynamic stability and 30-day postoperative complication rate in adult patients undergoing major abdominal surgery with ERAS or similar programs?...
July 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27511606/temporal-and-spectral-properties-of-esophageal-mucosal-blood-perfusion-a-comparison-between-normal-subjects-and-nutcracker-esophagus-patients
#14
COMPARATIVE STUDY
A Zifan, Y Jiang, R K Mittal
BACKGROUND: The mechanism of esophageal pain in patients with nutcracker esophagus (NE) and other esophageal motor disorders is not known. Our recent study shows that baseline esophageal mucosal perfusion, measured by laser Doppler perfusion monitoring, is lower in NE patients compared to controls. The goal of our current study was to perform a more detailed analysis of esophageal mucosal blood perfusion (EMBP) waveform of NE patients and controls to determine the optimal EMBP biomarkers that combined with suitable statistical learning models produce robust discrimination between the two groups...
February 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/26971951/changes-in-doppler-parameters-of-portal-pressure-after-interventional-management-of-hepatocellular-carcinoma
#15
Walid El Sherbiny, Ashraf AbdelRahman, Muhammad Diasty, Shaker Wagih Shaltout
Hepatocellular carcinoma (HCC) has many options for management; some of them are complicated by development of portal hypertension (PHT). Doppler ultrasound is an effective method to diagnose and monitor PHT changes after HCC ablation procedures. The aim of this study is to investigate changes in portal pressure hemodynamics of HCC patients following treatment with different interventional strategies: radiofrequency ablation (RFA), microwave ablation (MWA), and transarterial chemoembolization (TACE). A total of 60 patients with HCC were divided into three main groups, and each group received a different type of therapy (RFA, MWA, and TACE)...
August 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/26873025/goal-directed-hemodynamic-therapy-based-in-esophageal-doppler-flow-parameters-a-systematic-review-meta-analysis-and-trial-sequential-analysis
#16
REVIEW
J Ripollés-Melchor, R Casans-Francés, A Espinosa, A Abad-Gurumeta, A Feldheiser, F López-Timoneda, J M Calvo-Vecino
BACKGROUND: Numerous studies have compared perioperative esophageal doppler monitoring (EDM) guided intravascular volume replacement strategies with conventional clinical volume replacement in surgical patients. The use of the EDM within hemodynamic algorithms is called 'goal directed hemodynamic therapy' (GDHT). METHODS: Meta-analysis of the effects of EDM guided GDHT in adult non-cardiac surgery on postoperative complications and mortality using PRISMA methodology...
August 2016: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/26348419/monitoring-from-cardiac-output-monitoring-to-echocardiography
#17
REVIEW
Mathieu Jozwiak, Xavier Monnet, Jean-Louis Teboul
PURPOSE OF REVIEW: Hemodynamic exploration is mandatory in patients with shock to identify the type of shock, to select the best therapeutic strategy, and to assess the efficacy of the selected therapy. In this review, we summarize the characteristics of the main available hemodynamic monitoring systems and emphasize on how to select the most appropriate ones in patients with circulatory shock. RECENT FINDINGS: Over the past decade, hemodynamic monitoring techniques have progressively evolved from intermittent toward real-time measurements and from invasive toward less invasive approaches...
October 2015: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/26297088/goal-directed-fluid-therapy-guided-by-cardiac-monitoring-during-high-risk-abdominal-surgery-in-adult-patients-cost-effectiveness-analysis-of-esophageal-doppler-and-arterial-pulse-pressure-waveform-analysis
#18
MULTICENTER STUDY
Guillaume Legrand, Laura Ruscio, Dan Benhamou, Nathalie Pelletier-Fleury
BACKGROUND: Several minimally invasive techniques for cardiac output monitoring such as the esophageal Doppler (ED) and arterial pulse pressure waveform analysis (APPWA) have been shown to improve surgical outcomes compared with conventional clinical assessment (CCA). OBJECTIVE: To evaluate the cost-effectiveness of these techniques in high-risk abdominal surgery from the perspective of the French public health insurance fund. METHODS: An analytical decision model was constructed to compare the cost-effectiveness of ED, APPWA, and CCA...
July 2015: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/26218863/major-upper-abdominal-surgery-alters-the-calibration-of-bioreactance-cardiac-output-readings-the-nicom-when-comparisons-are-made-against-suprasternal-and-esophageal-doppler-intraoperatively
#19
COMPARATIVE STUDY
Li Huang, Lester A H Critchley, Jie Zhang
BACKGROUND: Minimally invasive continuous cardiac output measurements are recommended for use during anesthesia to guide fluid therapy, but such measurements must trend changes reliably. The NICOM Cheetah, a BioReactance monitor, is being recommended for intraoperative use. To validate its use, Doppler methods, suprasternal USCOM and esophageal CardioQ, were used in tandem to provide reliable estimates of changing trends in cardiac output. Preliminary comparisons showed that upper abdominal surgical interventions caused shifts in the calibration of the NICOM...
October 2015: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/26211769/-effect-of-perioperative-goal-directed-fluid-therapy-on-clinical-outcome-in-elective-colorectal-resection
#20
Qiang Lin, Huodong Zhou, Dafeng Li, Jinfeng Ye, Jinfu Hong, Yemao Hu
OBJECTIVE: To assess the effect of perioperative goal-directed fluid therapy (GDFT) on clinical outcomes in elective colorectal resection. METHODS: A total of 42 patients undergoing elective colorectal resection between March 2013 and December 2014 were recruited prospectively. GDFT was administrated based on corrected left ventricular ejection time and stroke volume using the esophageal Doppler monitoring. These patients were compared with a historical cohort of 58 patients managed without GDFT from January 2012 to February 2013...
July 2015: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
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