In the Szabo technique, the stent is deployed at which ATM?

• A. Low ATM
• B. High ATM
• C. Medium ATM
• D. No specific ATM

Answer: (A)

The Szabo technique focuses on placing the stent exactly at the mouth of a side branch by using a second guidewire that passes through a stent cell into the side-branch ostium. That wire acts as a stopper to seat the stent edge right at the ostium. Deploying the stent in a low position relative to the branch opening ensures precise ostial coverage while minimizing protrusion into the side branch. This helps protect the side branch and reduces the risk of occlusion or jailing. If the stent is deployed higher, it can extend away from the ostium into the main vessel or alter the bifurcation geometry, which is undesirable. So, the best approach is to position the stent at the low, ostial level to achieve accurate, controlled placement.