stroke volume cardiac output and ejection fraction
Báo cáo y học: " Non-invasive stroke volume measurement and passive leg raising predict volume responsiveness in medical ICU patients: an observational cohort study"
... Non-invasive cardiac output determination by two-dimensional independent Doppler during and after cardiac surgery Ann Thorac Surg 2005, 80:1479-1484 Chand R, Mehta Y, Trehan N: Cardiac output estimation ... PLR = passive leg raise; SV = stroke volume Page of (page number not for citation purposes) paired stroke plot of measurements difference one and three Bland-Altman volume log-transformedfrom stagesagainst ... both CO and SV (correlation index 0.79, P < 0.01 and 0.95, P < 0.01, respectively), and a BlandAltman analysis demonstrated a bias of 0.23 ± 1.01 L/min for the CO measurements Chand and colleagues...
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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
... thoracic bioimpedance and the thoracic fluid index (or total thoracic impedance) Cardiac output is then calculated from the product of heart rate and stroke volume, averaged over 16 cardiac cycles We ... Comparison of impedance cardiography with thermodilution and direct Fick methods for noninvasive measurement of stroke volume and cardiac output during incremental exercise in patients with ischaemic ... (measured by the mean) and precision (± 2SD) are shown Barry et al Critical Care 1997, 1:71 http://ccforum.com cardiac output in patients in the ICU and upon which much of our understanding of the cardiovascular...
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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
... and height (CardioQ, Deltex Medical Ltd; and Waki, Atys Medical) Systematic errors due to a discrepancy between the actual area and the estimated value would not affect the trend of cardiac output ... before acquiring 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 ... paired cardiac output measurements using thermodilution and oesophageal Doppler In addition, simultaneous suprasternal Doppler and indirect calorimetry (Fick principle) were used to measure cardiac...
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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
... Comparison of cardiac output determined using the thermodilution method (QTTHERM) and cardiac output determined using the metabolic (Fick) method (QTFICK) according to (a) the Bland and Altman graphic ... high cardiac output values QTFick (l/min) 0 10 11 12 QTTherm (l/min) Passing and Bablok regression of cardiac output determined using the metabolic (Fick) method (QTFICK) against cardiac output ... Comparison of cardiac output determined using the metabolic (Fick) method (QTFICK) and cardiac output determined using the thermodilution method (QTTHERM) according to (a) the Bland and Altman graphic...
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Báo cáo khoa học: "Continuously assessed right ventricular end-diastolic volume as a marker of cardiac preload and fluid responsiveness in mechanically ventilated cardiac surgical patients" pdf
... Times T1 and T2 are before volume replacement and 12 after volume replacement, respectively CCI, continuous cardiac index; CEDVI, continuous right ventricular end-diastolic volume index; CI, cardiac ... thermodilution-derived stroke volume index (∆SVITD) and baseline values of continuously assessed right ventricular end-diastolic volume index (CEDVI), and between (b) ∆SVITD and baseline values ... estimates of right ventricular end-diastolic volume (RVEDV) by thermodilution-derived right ventricular ejection fraction (RVEF) and surrogates of stroke volume [17-20] However, the thermodilution...
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Báo cáo khoa học: "Clinical review: Positive end-expiratory pressure and cardiac output" pdf
... 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 ... the cardiac function (Frank-Starling) and venous return curves [8] Thus, for any given set of cardiac function and venous return curves there exists only one combination of RAP and cardiac output ... interaction of cardiac function and circuit function determine cardiac output [21] An important concept for the understanding of venous return is that of stressed and unstressed volume The venous...
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Báo cáo y học: "Comparison between Flotrac-Vigileo and Bioreactance, a totally noninvasive method for cardiac output monitoring" ppt
... Vigileo™ CO = cardiac output; SD = standard deviation Accuracy and precision After selection, 33 periods of very stable CO (PAC-CCO slope > 10%, SD/mean < 20%, representing 4133 points and 34% of ... identity line) and Vigileo™ (in black, r = 0,69, P < 0.05 from identity line) with PAC-CCO during periods of very stable cardiac output (CO) (Right panel) Corresponding Bland and Altman representation: ... blood gases and considering the hemoglobin blood level as normal and stable, VO2 is a direct function of only three variables: cardiac output (CO), arterial oxygen saturation (SaO2), and mixed...
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Báo cáo y học: "Changes in stroke volume induced by passive leg raising in spontaneously breathing patients: comparison between echocardiography and Vigileo™/FloTrac™ device" docx
... Comparison between SV-TTE and SV-Flotrac at baseline, during PLR, before VE and after VE Bland-Altman plots between stroke volume measured SV-Flotrac at baseline, during PLR, before VE and after VE by ... PLR-induced changes in SV-TTE and in SV-Flotrac in responders and non-responders Box plots and individual values of passive leg raising (PLR)-induced changes in stroke volume measured with transthoracic ... raising; SV-Flotrac = stroke volume obtained with Vigileo™ device; SVR = systemic vascular resistance; SV-TTE = stroke volume obtained with transthoracic echocardiography; VE = volume expansion;...
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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
... real-time estimation of stroke volume and cardiac output The PiCCO device calculates stroke volume by measuring the area under the systolic portion of the arterial-pressure curve and dividing it by ... 90 105 120 Figure Bland-Altman plots (a, b) Bland-Altman plot for the changes (in absolute values) and correlation (for the percentage changes) induced by volume expansion on cardiac index obtained ... (CItd) and cardiac index obtained by the pulse-contour analysis (CIpc) (c, d) Bland-Altman plot for the changes (in absolute values) and correlation (for the percentage changes) induced by volume...
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Báo cáo y học: "Early administration of norepinephrine increases cardiac preload and cardiac output in septic patients with life-threatening hypotensio" ppsx
... septic-shock patients is able to increase cardiac output • The increase in cardiac output with norepinephrine seems to be related to increases in both cardiac preload and cardiac contractility • These positive ... some cardiac preload reserve However, in the subset of Figure Relative changes in the individual values of the stroke volume index (SVI) and of the end-diastolic volume index (GEDVI) before and ... recorded: the stroke volume index (SVI) calculated as CI/heart rate, the global end-diastolic volume index (GEDVI) assumed to be a global cardiac preload indicator [15,16], and the cardiac function...
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Báo cáo y học: "Cross-comparison of cardiac output trending accuracy of LiDCO, PiCCO, FloTrac and pulmonary artery catheters" docx
... PAC-derived estimates of cardiac output by the thermodilution technique are not the gold standard for estimating cardiac output at the bedside, all available measures of cardiac output need to be compared ... PiCCO Plus and FloTrac) (Edwards Lifesciences, Irvine, CA, USA) and two PAC thermodilution techniques: CO by thermodilution (COtd) and continuous cardiac output (CCO) in postoperative cardiac surgery ... arterial pressurederived estimates of cardiac output give differing degrees of error relative to each other • The cardiac output error among devices is low for cardiac output values < L/min • Studies...
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Báo cáo y học: "Effect of norepinephrine dosage and calibration frequency on accuracy of pulse contour-derived cardiac output" pptx
... actual and preceding calibration; APACHE II: Acute Physiology and Chronic Health Evaluation II score; CI: cardiac index; CO: cardiac output; COTCP: transcardiopulmonary thermodilution cardiac output; ... for pulse contour-derived cardiac output (PCCO) and transcardiopulmonary thermodilution cardiac output (COTCP); npatient, number of patients; mean, mean of all PCCO and COTCP measurements bInterchangeability ... http://ccforum.com/content/15/1/R22 Page of Figure Bland-Altman plots of different norepinephrine (NE) subgroups PCCO, pulse contour cardiac output; COTCP, transcardiopulmonary thermodilution cardiac output; PE, percentage...
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Báo cáo y học: " Pulse pressure variation and stroke volume variation during increased intra-abdominal pressure: an experimental study" potx
... mmHg), and at IAP of 30 mmHg, before and after FL Measurements and calculations Heart rate (HR), MAP, mean RAP (RAPm), cardiac output, stroke volume (SV), mean Ppl, and mean IAP were analysed over ... pulse pressure variation; SV, stroke volume; SVV, stroke volume variation FL was performed at intra-abdominal pressure of 30 mmHg in pigs before blood withdrawal and pigs after blood withdrawal ... protocol and measurements were carried out at normal IAP and at IAP of 30 mmHg before another FL So, before and after blood withdrawal, data were recorded under two IAP levels (0, 30 mmHg), and at...
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Báo cáo y học: "Pulse pressure variation, stroke volume variation and dynamic arterial elastance" ppsx
... 18.6% Volume PPV/SVV = 1.03 Ea SVV = 18% SVV = 18% Figure Model of two different arterial elastances (Ea and Ea’) on the pulse pressure variation (PVV) relationship curve, with the same stroke volume...
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Resource Disposal, Input-Output, and Threads
... StreamReader sr = new StreamReader("file.txt") ) { } 9.2 Input /Output Thus far, our discussion on input /output has been limited to standard output streams using the System.Console class In this section, ... and so on In the following example, an unsigned integer magicNumber and four unsigned short integers stored in array data are first written to a binary file called file.bin and then read back and ... TextReader and TextWriter, are abstract base classes for reading and writing an array of characters or a string The concrete classes, StreamReader and StreamWriter, implement TextReader and TextWriter,...
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Tài liệu BAT FOR LARGE VOLUME ORGANIC CHEMICALS AND PRODUCTION IN AUSTRIA pdf
... success on an industrial scale; · technological advances and changes in scientific knowledge and understanding; · the nature, effects and volume of the emissions concerned; · the commissioning ... fertilizer and nitrogen compounds 21 polymers in primary forms 21 pesticide and plant protective lacquers and paints, printing ink and putty pharmaceutics soaps, washing agents, cleaning material and ... ethylene and propylene production and production capacity for Western Europe (excluding Greece and Switzerland) from 1993 to 1997 is presented in Figure capacity production propylene capacity and...
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Tài liệu Number Sense and Numeration, Grades 4 to 6 Volume 2 Addition and Subtraction docx
... following volumes: • Volume 1: The Big Ideas • Volume 2: Addition and Subtraction • Volume 3: Multiplication • Volume 4: Division • Volume 5: Fractions • Volume 6: Decimal Numbers The present volume ... develop understanding of mental and paper -and- pencil strategies for adding and subtracting multidigit whole numbers and decimal numbers In the junior grades, base ten materials and open number ... Mathematicians at Work volumes by Fosnot and Dolk (2001a, 2001b, 2001c), and the books on mini-lessons by Fosnot, Dolk, Cameron, and Hersch (2004) and Fosnot, Dolk, Cameron, Hersch, and Teig (2005)...
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Tài liệu ENCYCLOPEDIA OF LAW ENFORCEMENT, VOLUME I: STATE AND LOCAL doc
... Enforcement Standards of the National Institute of Standards and Technology, and produced as part of the Law Enforcement and Corrections Standards and Testing Program, these standards are based ... law and natural rights was developed initially by Hugo Grotius (16thcentury Holland) and John Locke (17th-century England) and was inculcated into the American Declaration of Independence and ... the practice and theory of policing in a historical and contemporary framework Each volume treats subjects that are particular to the area of state and local, federal and national, and international...
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The Lakes Handbook VOLUME 1 LIMNOLOGY AND LIMNETIC ECOLOGY ppt
... LAKES HANDBOOK Volume Also available from Blackwell Publishing: The Lakes Handbook Volume Lake Restoration and Rehabilitation Edited by P.E OSullivan & C.S Reynolds The Lakes Handbook VOLUME ... 374,000 624,000 (c) Inland waters 100010,000 km2 (d) Inland waters 1001000 km2 (e) Inland waters 10100 km2 (f) Inland waters 110 km2 (g) Inland waters 0.11 km2 (h) Inland waters 0.010.1 km2 124 ... Plymouth, copy editor Harry Langford and the understanding advice and guidance initially provided by Susan Sternberg and, later, by Ian Francis and Delia Sandford at Blackwell The nished book...
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