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Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.
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Transcript of Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.
![Page 1: Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.](https://reader030.fdocuments.us/reader030/viewer/2022013012/56649f0e5503460f94c22227/html5/thumbnails/1.jpg)
Echocardiography in ICU
Michel Slama
Amiens
France
LEVEL 1 basic
LEVEL 2: advanced
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How to use echocardiography in ICU patients
Two clinical situations Unexplained shock Unexplained respiratory failure
![Page 3: Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.](https://reader030.fdocuments.us/reader030/viewer/2022013012/56649f0e5503460f94c22227/html5/thumbnails/3.jpg)
How to use echocardiography in ICU patients
Two clinical situations
Unexplained shock Unexplained respiratory failure
![Page 4: Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.](https://reader030.fdocuments.us/reader030/viewer/2022013012/56649f0e5503460f94c22227/html5/thumbnails/4.jpg)
Step 1: rule out péricardial tamponnade
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LEVEL 1 goal directed
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Step 2 : evaluation of fluid responsiveness
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Mean 211 / 195 52 %
CHEST 2002, 121:2000-8
R / NR R (%)
Calvin (Surgery 81) 20 / 8 71 % Schneider (Am Heart J 88) 13 / 5 72 % Reuse (Chest 90) 26 / 15 63 % Magder (J Crit Care 92) 17 / 16 52 % Diebel (Arch Surgery 92) 13 / 9 59 % Diebel (J Trauma 94) 26 / 39 40 % Wagner (Chest 98) 20 / 16 56 % Tavernier (Anesthesio 98) 21 / 14 60 % Magder (J Crit Care 99) 13 / 16 45 % Tousignant (A Analg 00) 16 / 24 40 % Michard (AJRCCM 00) 16 / 24 40 % Feissel (Chest 01) 10 / 9 53 %
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CVP out….
D Osman Crit care med 2007
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CVP out…. PAOP out…
D Osman Crit care med 2007
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LEVEL 1
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TTE : IVC
LEVEL 1
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DIVC diameter = 22 %
Cardiac output will increase
by 18 % after fluid infusion
expiration inspiration
Feissel Intensive Care Med 2004
“The respiratory variation in inferior vena cava diameter as a guide to fluid therapy”
LEVEL 1
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TTE or TEE : aortic Pulsed Doppler flow
Delta peak > 12% Delta VTI > 20%
LEVEL 2
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12%
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∆Vpeak(%)
Before fluid
infusion
4
8
12
16
20
24
28
32
36
reponders non reponders
Respiratory changes in aortic blood velocity as an indicator of fluid responsiveness in ventilated patients with septic shock.Feissel M, Michard F, Mangin I, Ruyer O, Faller JP, Teboul JL. Chest 2001; 119:867-873
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-15
0
15
30
45
60
75
5 10 15 20 25 30 35
r2 = 0.83p < 0.001
Respiratory changes in aortic blood velocity as an indicator of fluid responsiveness in ventilated patients with septic shock.Feissel M, Michard F, Mangin I, Ruyer O, Faller JP, Teboul JL. Chest 2001; 119:867-873
Vpeak (%) before fluid infusion
Increase in CO afterFluid infusion
(%)
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Step 3 : evaluation of LV systolic function
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LV function
Ejection fractionCardiac output
Left ventricular filling pressure
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Shortening Fraction
Shortening Fraction
of LV Area
Ejection Fraction
Systolic
Function
LEVEL 1
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NB Shiller, Heart, 1996;75:17-26
Estimated and measured EF
LEVEL 1
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TTE : Ejection fraction
Septic shock J1 Septic shock J7
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Pouleur, Am J Cardiol, 1983;52:813-21
Influence of afterload on EF
HT, AS
Septic
Shock
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How to perform echocardiographic examination in shocked patient?
Cardiac output TTE:
LEVEL 2
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How to perform echocardiographic examination in shocked patient?
Cardiac output TTE: LEVEL 2
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E/E’ ratio predicts PAOP
LEVEL 2
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Combes A Int Care Med 2004
E/Ea
ICU, mechanical ventilationLEVEL 2: advanced
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Step 4 : assessment of right ventricular function
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No dilatation: RVDA/LVDA< 0.6
Moderate Dilation: RVDA/LVDA 0.6 - 1
Severe dilation: RVDA/LVDA > 1Jardin Chest 1997
DILATION VD
LEVEL 1
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RV function
TAPSE TDI
LEVEL 2
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Evaluation of pulmonary arterial pressures
Tricuspid regurgitation
Pulmonary regurgitation
LEVEL 2
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Septic Shock
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Cardiac failure?
No
Acute circulatory failure
Yes
No
Consider circulatory assistance
Yes
LV RV
Fluid responsiveness?
Fluid loading
Vasopressors
Inotropes Vasopressors*
Figure 5.1-2
*
LEVEL 1
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Cardiogenic shock with pulmonary edema
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Yes
Acute circulatory failure & pulmonary venous congestion (elevated LV filling pressures)
No
LV systolic dysfunction?
LV volume overload
• Extensive (anterior) AMI• Mechanical
complications• Small AMI on previously
compromised LV function
Cardiogenic shock
Acute myocardial infarction (AMI)?
NoYes
• Non ischemic cardiomyopathy
• Fulminant myocarditis• Myocardial contusion,
intoxication by cardiac depressant drugs…
• Acute (severe) valvular regurgitation
• Valvular prosthesis dysfunction
• Volume overload (renal failure)
LEVEL 1
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Yes
Acute circulatory failure & pulmonary venous congestion (elevated LV filling pressures)
No
LV systolic dysfunction?
LV volume overload
• Extensive (anterior) AMI• Mechanical
complications• Small AMI on previously
compromised LV function
Cardiogenic shock
Acute myocardial infarction (AMI)?
NoYes
• Non ischemic cardiomyopathy
• Fulminant myocarditis• Myocardial contusion,
intoxication by cardiac depressant drugs…
• Acute (severe) valvular regurgitation
• Valvular prosthesis dysfunction
• Volume overload (renal failure)
Figure 5.1-3LEVEL 1
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Yes
Acute circulatory failure & pulmonary venous congestion (elevated LV filling pressures)
No
LV systolic dysfunction?
LV volume overload
• Extensive (anterior) AMI• Mechanical
complications• Small AMI on previously
compromised LV function
Cardiogenic shock
Acute myocardial infarction (AMI)?
NoYes
• Non ischemic cardiomyopathy
• Fulminant myocarditis• Myocardial contusion,
intoxication by cardiac depressant drugs…
• Acute (severe) valvular regurgitation
• Valvular prosthesis dysfunction
• Volume overload (renal failure)
Figure 5.1-3LEVEL 1
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Acute circulatory failure & systemic venous congestion
(elevated RV filling pressures)
RV dysfunction / dilatation
Cardiac tamponade
Relevant pulmonary hypertension?
Yes*No
Acute RV infarction • Massive pulmonary embolism
• ARDS• Biventricular
dysfunction (end-stage cardiomyopathy)**
Figure 5.1-4 LEVEL 1
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Acute circulatory failure & systemic venous congestion
(elevated RV filling pressures)
RV dysfunction / dilatation
Cardiac tamponade
Relevant pulmonary hypertension?
Yes*No
Acute RV infarction • Massive pulmonary embolism
• ARDS• Biventricular
dysfunction (end-stage cardiomyopathy)**
Figure 5.1-4 LEVEL 1
![Page 39: Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.](https://reader030.fdocuments.us/reader030/viewer/2022013012/56649f0e5503460f94c22227/html5/thumbnails/39.jpg)
How to use echocardiography in ICU patients
Two clinical situations Unexplained shock
Unexplained respiratory failure
![Page 40: Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.](https://reader030.fdocuments.us/reader030/viewer/2022013012/56649f0e5503460f94c22227/html5/thumbnails/40.jpg)
Respiratory failure
Two differents clinical situations : Respiratory distress with
pulmonary edema : problem is to distinghish hemodynamic pulmonary edema and ARDS or bilateral pneumonia
Severe hypoxemia without pulmonary edema: COPD, PE or intra cardiac or pulmonary shunt
« White chest X-ray »
« Black chest X-ray »
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Pulmonary edema?
Question 1: is the pulmonary wedge pressure high?
Question 2: which is the cause of this pulmonary edema?
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Pulmonary edema?
Question 1: is the pulmonary wedge pressure high?
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PAOP is pressure into a large pulmonary vein
PAOP
Pulmonary artery Pulmonary Vein
capillairiE
s
PAOP
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Non invasive PAOP?
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Mitral flow
Parameters that evaluate LV
relaxation preload independent
E/Ea ratio
LEVEL 2: advanced
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Combes A Int Care Med 2004
E/Ea
ICU, mechanical ventilationLEVEL 2: advanced
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Pulmonary edema?
Question 2: which is the cause of this pulmonary edema?
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Evaluation of systolic function
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Cause of pulmonary edema
Left ventricular systolic function
Normal Decreased
Diastolic dysfunctionValvular regurgitation
or stenosis
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Pulmonary edema
Left ventricular volume (ml)
En
d d
iast
oli
c le
ft v
entr
icu
lar
pre
ssu
re (
mm
Hg
)
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Cause of pulmonary edema
Left ventricular systolic function
Normal Decreased
Diastolic dysfunctionValvular regurgitation
or stenosis
Ischemic or non ischemic
cardiomyopathy
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Pulmonary edema and normal PAOP : ARDS bilateral
pneumoniae
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Respiratory failure
Two differents clinical situation : Respiratory distress
syndrom with pulmonary edema : problem is to distinghish between hemodynamic pulmonary edema and ARDS
Severe hypoxemia without pulmonary edema: COPD (other) or PE or intra cardiac or pulmonary shunt
![Page 57: Echocardiography in ICU Michel Slama AmiensFrance LEVEL 1 basic LEVEL 2: advanced.](https://reader030.fdocuments.us/reader030/viewer/2022013012/56649f0e5503460f94c22227/html5/thumbnails/57.jpg)
Pulmonary embolism Echocardiography : ACP with RV dilation,
paradoxical septum mouvement and PAH. Venous Doppler CT Scan
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Intra pulmonary shunt and Patent foramen ovale
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Respiratory failure with pulmonary edema
PAOP
Elevated Normal
LV systolic dysfunction Normal systolic function ARDS, pneumonia
Valvular pathology
Diastolic dysfunction
Ischemic CM
Non ischemic CM
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Respiratory failure without pulmonary edema
Contrast
Positive Negative
PFO Intra pulmonary shunt Pulmonary cause (COPD)
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Case presentation