ECMO Introduction
Study online at https://quizlet.com/_8a20p3
What does ECMO aim to supplement? Failing lungs
What does ECLS, extracorpeal life support aim to support? Heart failure
Oxygenation and decarboxylation of the blood (release of
What does ECMO affect?
CO2)
All short-term circulatory support techniques (under 1
The term ECMO is used for?
month)
Venoarterial ECMO (ECMO-VA) is used to discuss? ECLS for heart failure or cardiopulmonary failure
What is venovenous ECMO used to discuss? Respiratory failure only
ECMO has no cardiotomy reservoir to store the blood - is
What does ecmo not have vs. cardiopulmonary bypass?
closed circuit.
The system is more dependent on the preload and af-
Why is it important to understand that ECMO has no
ter-load than a bypass machine is. CBP is just used for a
reservoir to store blood?
few hours, ECMO is used for several days or weeks.
blood passes through an oxygenator to allow gas ex-
The basics of the ECMO circuit include an understanding
change. The pressure generated by the pump --> replaces
that...
part or all of the cardiac function
What is venovenous ECMO? Blood is taken from the vein and returned via vein
mixed with the venous blood and continues normally
The returned blood is...? through (vein to right heart to lungs to left heart to sys-
temic circulation)
a greater proportion of ECMO blood will bring a higher
concentration of oxygen to the right side of the heart.
If the proportion of blood going through the circuit is
increased but patients cardiac output remains the same...
CO increases, but blood flow is same? oxygenated blood
to right side of heart decreases
Venovenous ecmo circuit
1/8
, ECMO Introduction
Study online at https://quizlet.com/_8a20p3
blood returns in internal jugular vein, tip clsoe to the right
atrium.
Blood drains from femoral vein cannula in inferior vena
cava.
drains femoral vein --> meets pump--> meets oxygenator
-->returns into internal jugular
Blood is taken from a vein and returned via artery.
What is veno-arterial ECMO? can be a peripheral artery or the aorta. it can also be
peripheral vein with return cannula in through the chest
into the aorta.
Blood flows in the opposite direction, driven by pts own
Absence of pump?
blood pressure.
the blood will go from vein to artery and bypass function
of the heart --> makes a shunt --> injects venous blood
(non-oxygenated) into the arterial system. oxygenator is
pump generates higher pressure than patients own? indispensable.
this is how ECMO supports a failed heart (pump support)
or failed lungs (required gas exchange), or both
Can drain from blood in femoral vein, in inferior vena
Veno arterial ECMO cava --> meets pump--> meets oxygenator --> returns via
subclavian artery
Blood drains from right atrium/open chest --> meets
Veno-arterial EMCO, additional placement
pump --> meets oxygenator -->returns to ascending aorta
Blood drains from femoral vein cannula in inferior vena
Veno-arterial ECMO, additional placement cava --> meets pump--> meets oxygenator --> returns in
ascending aorta
2/8
Study online at https://quizlet.com/_8a20p3
What does ECMO aim to supplement? Failing lungs
What does ECLS, extracorpeal life support aim to support? Heart failure
Oxygenation and decarboxylation of the blood (release of
What does ECMO affect?
CO2)
All short-term circulatory support techniques (under 1
The term ECMO is used for?
month)
Venoarterial ECMO (ECMO-VA) is used to discuss? ECLS for heart failure or cardiopulmonary failure
What is venovenous ECMO used to discuss? Respiratory failure only
ECMO has no cardiotomy reservoir to store the blood - is
What does ecmo not have vs. cardiopulmonary bypass?
closed circuit.
The system is more dependent on the preload and af-
Why is it important to understand that ECMO has no
ter-load than a bypass machine is. CBP is just used for a
reservoir to store blood?
few hours, ECMO is used for several days or weeks.
blood passes through an oxygenator to allow gas ex-
The basics of the ECMO circuit include an understanding
change. The pressure generated by the pump --> replaces
that...
part or all of the cardiac function
What is venovenous ECMO? Blood is taken from the vein and returned via vein
mixed with the venous blood and continues normally
The returned blood is...? through (vein to right heart to lungs to left heart to sys-
temic circulation)
a greater proportion of ECMO blood will bring a higher
concentration of oxygen to the right side of the heart.
If the proportion of blood going through the circuit is
increased but patients cardiac output remains the same...
CO increases, but blood flow is same? oxygenated blood
to right side of heart decreases
Venovenous ecmo circuit
1/8
, ECMO Introduction
Study online at https://quizlet.com/_8a20p3
blood returns in internal jugular vein, tip clsoe to the right
atrium.
Blood drains from femoral vein cannula in inferior vena
cava.
drains femoral vein --> meets pump--> meets oxygenator
-->returns into internal jugular
Blood is taken from a vein and returned via artery.
What is veno-arterial ECMO? can be a peripheral artery or the aorta. it can also be
peripheral vein with return cannula in through the chest
into the aorta.
Blood flows in the opposite direction, driven by pts own
Absence of pump?
blood pressure.
the blood will go from vein to artery and bypass function
of the heart --> makes a shunt --> injects venous blood
(non-oxygenated) into the arterial system. oxygenator is
pump generates higher pressure than patients own? indispensable.
this is how ECMO supports a failed heart (pump support)
or failed lungs (required gas exchange), or both
Can drain from blood in femoral vein, in inferior vena
Veno arterial ECMO cava --> meets pump--> meets oxygenator --> returns via
subclavian artery
Blood drains from right atrium/open chest --> meets
Veno-arterial EMCO, additional placement
pump --> meets oxygenator -->returns to ascending aorta
Blood drains from femoral vein cannula in inferior vena
Veno-arterial ECMO, additional placement cava --> meets pump--> meets oxygenator --> returns in
ascending aorta
2/8
