pulse contour cardiac output von pulsion auf der grundlage der transpulmonalen doppelindikatorverfahren
Báo cáo y học: "Self-calibrating pulse contour cardiac output: do validation studies really show its clinical reliability" pps
... Cavus E, Renner J, Tonner PH, Steinfath M, Scholz J, Doerges V: The reliability of pulse contour- derived cardiac output during hemorrhage and after vasopressor administration Anesth Analg 2007, ... Urbani L, Filipponi F: Evaluation of an uncalibrated arterial pulse contour cardiac output monitoring system in cirrhotic patients undergoing liver surgery Br J Anaesth 2009, 102:47-54 Critchley ... References Senn A, Button D, Zollinger A, Hofer CK: Assessment of cardiac output changes using a modified FloTrac/Vigileo™ algorithm in cardiac surgery patients Crit Care 2009, 13:R32 Bein B, Meybohm...
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Báo cáo y học: "Equipment review: New techniques for cardiac output measurement – oesophageal Doppler, Fick principle using carbon dioxide, and pulse contour analysis" pot
... better estimation of cardiac output Recalibrating every hours (or at least before any important data acquisition) may augment the accuracy of pulse contour estimated cardiac output in critically ... and interpreting Doppler-derived data Failure to reposition the probe before each measurement may lead to grossly erroneous cardiac output values Validation of cardiac output measurement using ... Care June 2002 Vol No Berton and Cholley Pulse contour cardiac output Figure The first attempt to determine stroke volume from the shape of the arterial pulse curve can be tracked as far back as...
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Báo cáo y học: "Arterial pressure-based cardiac output in septic patients: different accuracy of pulse contour and uncalibrated pressure waveform devices" docx
... resistance) is added to the formula, which computes the pulse- contour cardiac output [7] This estimation of cardiac output from the pulse- contour analysis has been demonstrated as reliable by numerous ... shock patients, the pulse contour- derived estimation of cardiac index correctly tracked the changes in cardiac index induced by volume expansion and norepinephrine • The pulse- wave analysis was ... invasive cardiac output monitoring Curr Opin Crit Care 2008, 14:322-326 Bein B, Meybohm P, Cavus E, Renner J, Tonner PH, Steinfath M, Scholz J, Doerges V: The reliability of pulse contour- derived cardiac...
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Báo cáo y học: "Effect of norepinephrine dosage and calibration frequency on accuracy of pulse contour-derived cardiac output" pptx
... -2.90-3.34 40 a nall, number of measurement pairs for pulse contour- derived cardiac output (PCCO) and transcardiopulmonary thermodilution cardiac output (COTCP); npatient, number of patients; mean, ... arterial pulse contour analysis J Clin Anesth 2005, 17:241-248 11 Bein B, Meybohm P, Cavus E, Renner J, Tonner PH, Steinfath M, Scholz J, Doerges V: The reliability of pulse contour- derived cardiac output ... reference to the measurement of cardiac output Crit Care 2009, 13:201 22 Sander M, von Heymann C, Foer A, von Dossow V, Grosse J, Dushe S, Konertz WF, Spies CD: Pulse contour analysis after normothermic...
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Báo cáo khoa học: "Pulse contour analysis after normothermic cardiopulmonary bypass in cardiac surgery patients" pdf
... catheter thermodilution cardiac output; COPiCCOtherm, aortic transpulmonary thermodilution cardiac output; COPiCCOpulse, continuous arterial pulse contour analysis cardiac output *P < 0.05 compared ... transpulmonarythermodilution cardiac diac output analysis of analysis to andversus arterial pulse contour analysis cardiac CPB (CPB), and (CO output (COPiCCOpulse) catheter thermodilution caroutput (CO regression ... Bland-Altman plot of continuous arterial pulse contour analysis cardiac output (COPiCCOpulse) versus COPiCCOtherm and versus COPACtherm after CPB CO, cardiac output Discussion The main finding of...
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Báo cáo y học: "Endothelial Uncalibrated pulse power analysis fails to reliably measure cardiac output in patients undergoing coronary artery bypass surger" pdf
... 2003, 290:2713-2720 Sander M, von Heymann C, Foer A, von Dossow V, Grosse J, Dushe S, Konertz WF, Spies CD: Pulse contour analysis after normothermic cardiopulmonary bypass in cardiac surgery patients ... analysis in cardiac surgery patients with thermodilution cardiac output measurements Crit Care 2006, 10:R164 Hamilton TT, Huber LM, Jessen ME: PulseCO: a less-invasive method to monitor cardiac output ... mean arterial HR, heart CIPPnon-cal., cardiac index by uncalibrated pulse power analysis; CIPPcal., cardiac index by calibrated pulse power analysis; CITPTD, cardiac index by transpulmonary thermodilution;...
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paul davies - das fünfte wunder - auf der suche nach dem urspung des lebens
... Lebens noch problematischer Hat es auf der Erde begonnen, auf Mars oder auf beiden unabhängig voneinander? Oder liegt der Ursprung etwa ganz woanders? Die Bedeutung der Astronomie für die Biogenese ... letzte Problem der Biogenese, die Frage, wo biologische Information herkommt Welche erstaunliche Chemie auch immer auf der frühen Erde oder auf anderen Planeten abgelaufen ist, der eigentliche ... oder Tod lautet der darwinsche Imperativ Doch wie können Stetigkeit und Wandel in einem System zusammen existieren? Dies ist der zentrale Widerspruch der Biologie Leben auf der Erde beruht auf...
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Báo cáo hóa học: " Videodensitometric Methods for Cardiac Output Measurements" potx
... vivo measurements of cardiac output is the low invasiveness of the method, which does not require catheterization In addition, once the system is able to measure cardiac output, it could be also ... the pump in order to avoid the collapse of the contrast microbubbles due to the turbulence of the pump The TEE transducer was placed on a plastic bag, considered as a model for a cardiac chamber ... system was developed in order to avoid air-bubble injections Several injections of degassed water were used in order to test the system No air bubbles were detected The video output of the ultrasound...
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Báo cáo y học: " Lack of agreement between bioimpedance and continuous thermodilution measurement of cardiac output in intensive care unit patient" ppt
... whether it can be a reliable method of cardiac output measurement for this group of patients The thermodilution method is an indirect measure of cardiac output, but has been shown to correlate ... measurement of cardiac output — Not ready for prime time Crit Care Med 1993, 21:1111-1112 11 Sageman WS, Amundsen DE: Thoracic electrical bioimpedance measurements of cardiac output in postaortocoronary ... bioimpedance vs Vigilance thermodilution continuous measurement of cardiac index (r2 = 0.01) negative to positive, with increasing cardiac output There were no clear factors which could be used to predict...
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Báo cáo y học: "Comparison of bedside measurement of cardiac output with the thermodilution method and the Fick method in mechanically ventilated patients" pot
... thermodilution cardiac output could overestimate the metabolic cardiac output by more than l, or underestimate it by more than l In the study of Sherman et al., 17 out of 20 of the cardiac output values ... methodological approach chosen to evaluate the cardiac output has an important influence on the result when cardiac output is high High cardiac output values should thus be treated and used cautiously ... QTFICK become major only for high cardiac outputs The agreement between QTTHERM and QTFICK at cardiac output values < l/min was almost as good as that reported by Capderou et al in normal individuals...
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Báo cáo y học: " Why measure cardiac output" ppt
... runs, give cardiac output values that may vary by up to 25% at low cardiac outputs (
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Báo cáo y học: " The International Sepsis Forum’s frontiers in sepsis: high cardiac output should be maintained in severe sepsis" ppt
... ANEMIA HYPOXIA HIGH VO2 LOW VO2 (anesthesia, hypothermia, ) inadequate cardiac output? LOW adequate cardiac output? LOW OUTPUT SYNDROME (hypervolemia, heart failure pulmonary embolism ) Influence ... ability of the cardiac output to meet the individual’s oxygenation needs Admittedly, SvO2 is a global parameter and gives no specific regional information, but neither does cardiac output; in fact, ... it may be interesting to combine SvO2 and cardiac output (Fig 2) Indeed, this is one of the problems with the less invasive methods of measuring cardiac output; we are all agreed that ‘less invasive’...
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Báo cáo y học: "The International Sepsis Forum’s frontiers in sepsis: high cardiac output should not be maintained in severe sepsis" pptx
... increased during the first, but not the second, increment in MAP Figure Vo2 Does increasing cardiac output/ oxygen delivery improve outcome in sepsis? Do2 Relationship between oxygen consumption ... targeted, this finding more likely represents a Table Randomized controlled trials of high cardiac output in patients with sepsis Mortality (%) Ref No of Year patients Type of patients Protocol ... patients in whom DO2 is already well above the critical DO2 Adequate vascular pressure versus high cardiac output in septic patients MAP and systemic vascular resistance have been shown to be determinants...
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Báo cáo khoa học: "Equipment review: An appraisal of the LiDCO™plus method of measuring cardiac output." docx
... dilution cardiac output as a technique for measurement of cardiac output in dogs Am J Vet Res 2001, 62:1255-1261 Linton RA, Jonas MM, Tibby SM, Murdoch IA, O’Brien TK, Linton NW, Band DM: Cardiac output ... applied to pulse oximetry Crit Care Med 1993, 21:615-624 Hamilton TT, Huber LM, Jessen ME: PulseCO: a less-invasive technique to monitor cardiac output from arterial pressure after cardiac surgery ... volume variation, stroke volume and cardiac output in volume resuscitation as compared with current parameters (end-diastolic volume index, cardiac output, cardiac index) in a trauma setting;...
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Báo cáo khoa học: "Clinical review: Positive end-expiratory pressure and cardiac output" pdf
... (RAP) RAP is controlled by cardiac function and the interaction of cardiac function and circuit function determine cardiac output [21] An important concept for the understanding of venous return ... return and cardiac output (a) Theoretical effects of PEEP on venous return (VR) and cardiac output (CO) PEEP causes an increase in intrathoracic pressure (ITP) and a right shift in the cardiac function ... PEEP [61,62,126-129] Combined with continuous cardiac output measurements using the rapid-response thermodilution technique and/or pulse contour- derived techniques [130,131], volume-based techniques...
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Báo cáo khoa học: "Comparison of uncalibrated arterial waveform analysis in cardiac surgery patients with thermodilution cardiac output measurements" doc
... pulmonary artery catheter thermodilution cardiac output; COTranspulm, aortic transpulmonary thermodilution cardiac output; COWave, uncalibrated pulse contour cardiac output; CVP, central venous pressure; ... measurements artery catheter thermodilution cardiac output; COTranspulm, aortic transpulmonary thermodilution cardiac output; COWave, uncalibrated pulse contour cardiac output prior to CPB and six hours ... pulmonary artery catheter thermodilution cardiac output; COTranspulm, aortic transpulmonary thermodilution cardiac output; COWave, uncalibrated pulse contour cardiac output; CPB, cardiopulmonary bypass;...
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Báo cáo khoa học: " Pulmonary artery catheter versus pulse contour analysis: a prospective epidemiological study" doc
... associated manipulations of the circulation More recently, new technology (PiCCO [pulse contour cardiac output] System; PULSION Medical Systems AG, Munich, Germany) that provides an alternative to ... and applied [5] This new technology uses transpulmonary thermodilution and pulse contour analysis to calculate cardiac output, stroke volume variation, intra-thoracic blood volume, and extra-vascular ... arterial blood/fraction of inspired oxygen; PEEP, positive end-expiratory pressure; PiCCO, pulse contour cardiac output; RRT, renal replacement therapy; SAPS II, simplified acute physiology score This...
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Báo cáo y học: "Validation of a continuous, arterial pressure-based cardiac output measurement: a multicenter, prospective clinical trial" pot
... Figure Mean difference in cardiac output as a function of mean cardiac output Mean difference in cardiac output, measured by arterial pressure-based carmean cardiac output diac output (APCO) and intermittent ... Figure Change in cardiac output The change in cardiac output (ΔCO) measoutput ured by intermittent thermodilution cardiac output (ICO) and by either arterial pressure-based cardiac output (APCO) ... intermittent thermodilution cardiac output (ICO) or measured by continuous cardiac output (CCO) and ICO, as a function of mean cardiac output The difference in cardiac output as determined by the...
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Báo cáo y học: "Clinical value of an arterial pressure-based cardiac output measurement device." pps
... (continuous cardiac output [CCO] and APCO) track dynamic change in cardiac output utilizing ICO as a reference in a remarkably similar fashion Although the absolute magnitude of cardiac output change ... Critical Care Vol 12 No Lemson and van der Hoeven decisions on cardiac output changes of 10% to 15% likely results in unnecessary hemodynamic manipulation ... System References McGee WT, Horswell JL, Calderon J, Janvier G, Van ST, Van den BG, Kozikowski L: Validation of a continuous, arterial pressurebased cardiac output measurement: a multicenter, prospective...
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Báo cáo y học: "Understanding cardiac output" pdf
... return therefore equals cardiac output, whereas preload is only one component of cardiac output Afterload Afterload is the force against which the ventricles must act in order to eject blood, and ... with cardiac failure to increase myocardial contractility and hence cardiac output Indeed, in the short-term, acute phase of heart failure, inotropic drugs can be useful to increase cardiac output ... Vol 12 No Vincent Figure Four determinants of cardiac output, using an analogy to the speed of a bicycle eventually be reached at which cardiac output will no longer increase Preload largely...
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