What is the aortic cannula?

Aortic cannula is a surgical tool used to create a bypass opening in aortic lumen during cardiovascular surgery. It has flexible bending hoses and a soft plastic tip. Some cannulas are equipped with a stylet and grit that are built, allowing less invasive implantation procedure. Another type of aortic cannula has three lumen or tunnel holes that simultaneously perfunches blood to three places in the heart.

The aortic cannula can be used during the surgery of the coronary artery, an operation that allows patients with arteriosclerosis or atherosclerosis to live longer. Most surgeons prefer harvesting a suitable saffin vein from patient to graft to a narrow artery. In some cases, the aortic cannula is implanted when the right vein is not available for transplantation. During the operation, decannulation is reversible. The aortic cannulation does not have to have any main calcification sites.

Surgical method called Seldinger techniqueis used to insert the cannula into the aorta. The surgeon uses to visualize the heart during the operation of transesofageal echocardiography (tee), allowing him to ensure the correct placement of the cannula during the procedure. It can also help calculate blood perfusion through the cannula.

At the beginning of the cannula, a hole in which is inserted and directed to the aortic arch of the arterial inlet catheter is created. Then the surgical conductor is inserted via the catheter and advanced to the aorta. The next step is to remove the catheter.

Before implanting the aortic cannula, the aortic wall must be extended to allow enough space for the cannulation. Three dilatoryjs are thread on the guide wire behind them to slowly expand the aorta and then remove. After the expansion is complete, the cannula is inserted and moved along the guide wire until the proximal descending aorta is reached. Is carefully placed in the aortic lumen, withThe tip of the aortic cannula placed in descending aorta to reduce the possibility of embolism.

The use of aortic cannula can cause increased speed and turbulence of blood flow in a heart called sandstone effect. Implantation of a cannula with a tip in descending aorta reduces the risk of carotid arteries and cause embolism, risk of cellular cells. If embolism or blocking occurs, damage from the clot in the descending aorta causes the death of a person, because the blood flow to the brain is not significantly interrupted.