Intravascular brachytherapy for native coronary ostial in-stent restenotic lesions.

Objectives: We analyzed the effects of vascular brachytherapy (VBT) on ostial in-stent restenosis (ISR).

Background: In-stent restenosis has a high recurrence rate after percutaneous reintervention. The recurrence rate of ostial ISR lesions and the impact of VBT remain unknown.