What was the bailout stent rate in the OAS arm of the Compliance 360 trial?

• A. 8%
• B. 84%
• C. 72%
• D. 56%

Answer: (A)

The main idea is understanding what bailout stent rate means: it’s the share of procedures where an unplanned stent was needed because the initial strategy didn’t achieve the desired result. In the Compliance 360 trial, the OAS arm had a bailout stent rate of 8%, so only a small minority of procedures required switching to a stent as a rescue measure. This low rate suggests the OAS approach was able to complete most interventions without needing to place a bailout stent. The other numbers would indicate much higher reliance on unplanned stenting, which is less consistent with how the OAS arm performed in this trial.