Cardiac Output Monitoring in Cardiac Surgery with Cardiopulmonary Bypass K. Lebedinski, A....
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![Page 1: Cardiac Output Monitoring in Cardiac Surgery with Cardiopulmonary Bypass K. Lebedinski, A. Vetchinkin St. Petersburg.](https://reader034.fdocuments.net/reader034/viewer/2022050802/56649e3f5503460f94b30212/html5/thumbnails/1.jpg)
Cardiac Output Cardiac Output
Monitoring in Cardiac Monitoring in Cardiac
Surgery with Surgery with
Cardiopulmonary BypassCardiopulmonary Bypass
K. Lebedinski, A. VetchinkinK. Lebedinski, A. Vetchinkin
St. PetersburgSt. Petersburg
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Circulatory Failure After Circulatory Failure After Cardiac Surgery With CPBCardiac Surgery With CPB
HypovolemiaHypovolemiaVasoplegia:Vasoplegia:
• RewarmingRewarming• SIRS after CPBSIRS after CPB• Drug or blood reactionDrug or blood reaction
Primary Low Cardiac Output:Primary Low Cardiac Output:• Ventricular dysfunctionVentricular dysfunction• Surgical problemsSurgical problems
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Circulatory Failure: DiagnosisCirculatory Failure: Diagnosis
CardiacOutput?Vascular
Tone?Preload?
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COCO: :
measurementmeasurement
SVRSVR: : calculation calculation
PreloadPreload: :
measurementmeasurement
The Sources of Principal The Sources of Principal Hemodynamic VariablesHemodynamic Variables
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Clinical group:Clinical group:
32 ASA III-IV male patients, aged 32 ASA III-IV male patients, aged 40-7540-75
Surgery:Surgery:
Elective CABG and/or valve Elective CABG and/or valve replacement with CPBreplacement with CPB
Methods:Methods:
CO estimation by 6 different CO estimation by 6 different methods,methods,
in all 913 pair datain all 913 pair data
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Method: Conventional (pulmonary Method: Conventional (pulmonary artery) thermodilution, N=246artery) thermodilution, N=246
S/5S/5
General Electric, General Electric, USAUSA
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Method: Partial COMethod: Partial CO22-rebreathing -rebreathing based on differential form of based on differential form of Fick equation, N=473Fick equation, N=473
NICONICO2 2
Novametrix, Novametrix, USAUSA
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PiCCOPiCCO
Pulsion, Pulsion, GermanyGermany
Method: transpulmonary Method: transpulmonary thermodilution followed by thermodilution followed by continuous pulse wave contour continuous pulse wave contour analysis, N=416analysis, N=416
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Diamant-MDiamant-M
RussiaRussia
Method: Impedance Method: Impedance Cardiography with on-line Cardiography with on-line Computer Analysis Computer Analysis (Bioimpedance Monitoring), (Bioimpedance Monitoring), N=428N=428
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Sonoline G60SSonoline G60S
Siemens, GermanySiemens, Germany
Method: Transesophageal Method: Transesophageal echocardiography (TEE), N=113echocardiography (TEE), N=113
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Method: Adolf Fick principle Method: Adolf Fick principle (1870), N=150(1870), N=150
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Correlation Between Correlation Between Methods:Methods:
Before CPBBefore CPB
• The best: CTD, TPTD, COThe best: CTD, TPTD, CO22 and and ICIC
• The worst: Fick and TEEThe worst: Fick and TEE
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Correlation Between Correlation Between Methods:Methods:After CPBAfter CPB
• Correlations between CTD, Correlations between CTD, TPTD and COTPTD and CO22 remained stable remained stable
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Correlation Between Correlation Between Methods:Methods:After CPBAfter CPB
• IC became inaccurate!IC became inaccurate!
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Correlation Between Correlation Between Methods:Methods:After CPBAfter CPB
• What about Fick and TEE? What about Fick and TEE? Small amount of data - ?...Small amount of data - ?...
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Conclusions:Conclusions:• The most relevant cardiac output monitoring methods The most relevant cardiac output monitoring methods
in cardiac surgery with cardiopulmonary bypass are in cardiac surgery with cardiopulmonary bypass are conventional and transpulmonary thermodilution and conventional and transpulmonary thermodilution and COCO2 2 partial rebreathing. partial rebreathing.
• Impedance cardiography, acceptable in non-CPB Impedance cardiography, acceptable in non-CPB cases, became inaccurate after the bypass. cases, became inaccurate after the bypass.
• Transesophageal EchoCG and Fick method Transesophageal EchoCG and Fick method demonstrate poor accuracy in clinical settings.demonstrate poor accuracy in clinical settings.
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Thank youThank you
for the for the attention!attention!