Explain what is Mustard Operation ?

The difference in Mustard operation is that either pericardium or polyester patch is used for making the inter atrial baffle. The baffle complications are less if autologus pericardium is used. The size and shape of the baffle has to be accurately measured and designed. As the baby's atrial septum is not used in this operation, it is completely excised. Suturing of the baffle as in the case of Senning operation is done.

The problems of atrial switch operation could be due to obstruction to systemic or palimony venous flow as the baby grows. Ultimately as right ventricle is the systemic pumping chamber it will fail.