Where do you Cannulate for VV ECMO?
V-V or veno-venous ECMO, supports lung function primarily. The surgeon will place the cannulae in a large vein only, usually in the neck. Based on the patient’s age and condition, the surgeon may choose to place one special cannula in a single vein or place two cannulae in two different veins.
What is an Avalon cannula?
It matches the body’s natural flow ratios by simultaneously removing deoxygenated blood from both the superior vena cava (SVC) and inferior vena cava (IVC), and returning oxygenated blood to the right atrium (RA).
What is an Avalon catheter?
Avalon Elite Catheter The world’s first single site, kink protected, veno-venous bi-caval dual lumen catheter designed to enable optimal extracorporeal life support.
How do I know what size ECMO cannula?
For venoarterial ECMO, one should choose cannulas that can provide a cardiac index of >2.4 LPM/m2. In most adult patients, this will require 5 LPM or more. A 25 French venous cannula is adequate for most adults and will easily fit in most adults. A 19 French arterial cannula will support most adults.
How does VV ECMO work?
The ECMO machine will remove un-oxygenated blood from the vein through the cannula, add oxygen to the blood, remove carbon dioxide, warm the blood, and return the blood to the heart. At that point, the heart takes over and pumps the oxygenated blood throughout the body, so that the lungs have time to rest and recover.
Who makes the Avalon cannula?
Zwischenberger. He added, “Since FDA approval, Avalon has been unable to keep up with demand for the double lumen cannula.” The DLC is manufactured and offered by Avalon Laboratories in seven different sizes.
How do I choose a cannula?
Inspect the patient’s arm for an appropriate cannulation site:
- You should select a site that is the least restrictive for the patient such as the posterior forearm or dorsum of the hand.
- Avoid areas near the elbow and wrist joints (to reduce the likelihood of dislodgement as a result of the patient’s movement).
How is ECMO inserted?
The ECMO machine is connected to a patient through plastic tubes (cannula). The tubes are placed in large veins and arteries in the legs, neck or chest. The procedure by which a healthcare provider places these tubes in a patient is called cannulation.