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Multiple cannulae are sewn into the patient’s body in a ramification of places, depending on the form of surgical procedure. A venous cannula eliminates oxygen depleted venous blood from a affected person’s frame. An arterial cannula infuses oxygen-wealthy blood into the arterial gadget. The important determinants of cannula length choice is decided by means of the patient’s size and weight, anticipated go with the flow fee, and the dimensions of the vessel being cannulated. A cardioplegia cannula offers a cardioplegia solution to purpose the coronary heart to stop beating.