3.Central aortic cannulation:

Locating a site where the chances of not entering into the false lumen is the most critical part. It can be done with TEE, CT or epiaortic scanning. Cannulation can be performed with Seldinger technique or directly. Advantages include (i) CPB

**Figure 6.** *Axillary artery cannulation.*

established quickly in unstable patients and (ii) antegrade flow. Disadvantages include (i) rupture of cannulation site and (ii) false lumen perfusion [27].
