GW25-e4123 Stenting the main branch after the pre-dilated ostial lesion of coronary artery with a diameter ≤ 2.0mm can reduce the rate of branch occlusion

68 cases of hospitalized patients undergoing percutaneous coronary intervention (PCI) were admitted in the Second Hospital of Shanxi Medical University from June 2006 to June 2012, including 53 cases of male, female 15 cases. 30 cases of patients decided whether balloon dilation after stenting of