1 Segmental ostial ablation was performed in the rest cases to isolate PVP.

2 An ostial dissection of the right coronary artery (RCA) with extension into the entire ascending aorta occurred during the an attempt to recanalize an occluded RCA.

3 In addition, fractures were more common with ostial location, longer lesions, angulation, proximal tortuosity , extensive vessel calcification and total occlusion.

4 Ostial stenosis were found in 18 cases (69%) and non-ostial stenosis in 8 cases (31%).

5 Objective To investigate the coronary remodeling patterns of ostial left anterior descending (LAD) stenosis.

6 Szabo technique is safe and feasible for PCI in ostial coronary artery lesions with a high angiographic success rate.