There are three types of cannulations used in cardiopulmonary bypass (CPB): arterial, venous, and cardioplegia cannulation. The target for venous cannulation is generally the right atrium, while the target for the arterial cannula is the ascending aorta. Venous blood is diverted from the superior and inferior vena cavae to the oxygenator via flexible plastic cannulas inserted into the venae cavae or right atrium. Cardioplegia cannulas are used to deliver cardioplegia solution to the patient's heart.

1. Manu jacob
Perfusionist
Kmct MCH

41.  The target for venous cannulation is generally
the RA.
 Target for the arterial cannula is ascending
aorta
Aortic
Cannulas

42.  The cannulas are the catheters which are used
to connect the patients circulation to the
extracorporeal circuit.
 There are three types of cannulations involved
in CPB.
◦ Arterial,
◦ Venous
◦ Cardioplegia cannulation.

43.  The cannulas are the catheters which are used
to connect the patients circulation to the
extracorporeal circuit.
 There are three types of cannulations involved
in CPB.
◦ Arterial,
◦ Venous
◦ Cardioplegia cannulation.

44.  Oxygenated blood is returned to the
patient via the arterial cannulae.
 Before arterial cannulation heparin is given
IV. 1st dose: 3mg/ kg to achieve an ACT
above 480 seconds.
 Anticoagulation is monitored by ACT at
regular intervals and supplementary doses
given according to the requirements.

45.  Systemic venous blood is diverted to the
oxygenator through two flexible plastic
cannulae which are inserted into the superior
and inferior venacavae.
 Otherwise a single cannulae inserted into RA
through RA appendage.

46. • There are two types of
venous cannulation.
– Single stage venous
cannulation: Cannula is inserted
directly into the IVC and SVC
– Double stage venous
cannulation: inserted into the
RA

47. Blood flows freely into
the oxygenator under
the influence of
Gravity Siphon.

48. Blood flows freely into
the oxygenator under
the influence of
Gravity Siphon.

49. THESE
CANNULAS ARE
USED TO
DELIVER
CARDIOPLEGIA
TO THE PATIENTS