Arterial Switch Operation

Transcript of the video: Arterial switch operation is the ideal corrective surgery for D-Transposition or dextro transposition of great arteries, if it can be detected early in life. As the left ventricle is facing the pulmonary artery in dextro transposition of great arteries, if there is a delay beyond two to three weeks of life, there is possibility that the muscle mass of the left ventricle can regress, so that, later if arterial switch operation is done, it will not be able to face the systemic vascular resistance and it will fail. That is why, arterial switch operation has to be done very early in life. For the same reason, early detection by newborn screening is also important to facilitate arterial switch operation. This is a very highly simplified representation of Jatene procedure, which is the other name for arterial switch operation. In dextro transposition of great arteries or D-TGA, there is ventriculoarterial discordance. That is, right ventricle is connecting to aorta, and left ventricle to pulmonary artery. In simple terms, arterial switch is restoring the normal connections. That is, pulmonary artery is transposed over to the right ventricle, and aorta over to the left ventricle, so that normal anatomy is restored. But that is easily said than done. It is much more difficult than you think from this simple block diagram. This is a more realistic diagrammatic representation of arterial switch operation. This is the left ventricle, connected to the pulmonary a...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: General Cardiology Source Type: blogs