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Cannula Site Selection and Cannulation
Common cannulation
locations are shown in the table below.
Table 3. Cannulation locations
Therapy
Access Point
Drainage Vessels
Return Vessels
LVAD support
Central
Left Atrium
Left Ventricle
Ascending Aorta
Via direct cannulation or with
a graft sewn to ascending
aorta
Axillary Artery
RVAD support
Central
Peripheral
Right Atrium
Right Ventricle
Superior Vena Cava
Inferior Vena Cava
Pulmonary Artery
Via direct cannulation or with
a graft sewn to pulmonary
artery
BiVAD support
Central
Peripheral
See options above for left and
right sided support
See options above for left and
right sided support
Two cannulation approaches are shown in the figures below.
The left ventricle is drained via the left ventricular apex or the left atrium.
In both approaches, blood is returned via the ascending aorta. Left ventricular cannulation may be preferred because the unloading is
more complete, the risk of intra-ventricular thrombus is much lower, and collapse of the chamber is less likely, though care should be
taken to minimize the risk of suction.
Figure 5. Drainage via the left ventricular apex
Figure 6. Drainage via the left atrium
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The CentriMag Return (Arterial) Cannula and the CentriMag Drainage (Venous) Cannula are not intended for peripheral cannulation.