What is something to consider with ostial lesions?

• A. You might not be able to view the vessel before fixing it
• B. You should always view the vessel before fixing it
• C. You should avoid catheters with side holes
• D. Debulking first

Answer: (A)

Ostial lesions, which sit right at the origin of a vessel, often present a imaging challenge because the ostium can be difficult to visualize with standard angiography. The anatomy at the vessel’s entrance and the angles involved may obscure the true starting point and extent of disease, so you may not be able to view the vessel clearly before attempting treatment. That’s why the best approach is to anticipate this limitation and use multiple angiographic views, careful catheter engagement with shapes suited to reach the ostium, and, when needed, intracoronary imaging to confirm the exact ostial location before deploying a device. This helps ensure the intervention targets the correct origin and minimizes the risk of malposition or residual disease.

The other ideas aren’t as central to this specific challenge: while aiming to visualize the ostium from different angles is helpful, it isn’t always possible to achieve a perfect view beforehand; debulking first isn’t a universal rule for ostial lesions; and avoiding side-hole catheters isn’t a defining factor in addressing ostial visualization.