Editing Cardiopulmonary bypass (section)

==== Cannulation strategy ====
The cannulation strategy varies on several operation-specific and patient-specific details. Nonetheless, a surgeon will place a [[cannula]] in the right atrium, vena cava, or femoral vein to withdraw blood from the body. The cannula used to return oxygenated blood is usually inserted in the ascending aorta, but there is a possibility that it is inserted in the femoral artery, axillary artery, or brachiocephalic artery according to the demand of the surgery.<ref name=":33"/><ref name=":13">{{Cite book |title=Kirklin/Barratt-Boyes cardiac surgery : morphology, diagnostic criteria, natural history, techniques, results, and indications |vauthors=Kouchoukos NT, Kirklin JW |date=2013 |publisher=Elsevier/Saunders |isbn=978-1-4557-4605-7 |edition=4th |location=Philadelphia |oclc=812289395}}</ref> After the cannula is inserted, venous blood is drained from the body by the cannula into a reservoir. This blood is then filtered, cooled, or warmed, and oxygenated before it returns to the body through a mechanical pump.