Cannulation and cardiopulmonary bypass.

CPB

1. C annulation Manu jacob Perfusionist Kmct MCH

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

3. 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 . CANNULAS

4. 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 . CANNULAS

5. Oxygenated blood is returned to the patient via the arterial cannulae . Before arterial cannulation heparin is given IV. 1 st 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. Arterial Cannulation

6. 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. Venous Cannulation

7. 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 Venous Cannulation

8. Blood flows freely into the oxygenator under the influence of Gravity Siphon. Venous Cannulation

9. Blood flows freely into the oxygenator under the influence of Gravity Siphon. Venous Cannulation

10. THESE CANNULAS ARE USED TO DELIVER CARDIOPLEGIA TO THE PATIENTS CARDIOPLEGIA CANNULA