OBJECTIVES: In response to TW-DRG implementation, based on safety, through the radial artery cardiac catheterization intervention, how to make patients discharged earlier, save health care costs and create a win-win between patients and hospitals. METHODS: In this retrospective study in Han-Ming Hospital, Taiwan, we enrolled 282 cases from January 1, 2006 to December 31, 2010. RESULTS: In the admission less than 24 hours after the PCI treatment, there were 129 males and 51 females (64.3±12.5 years, mean± s.d.). Besides, in other group over 24 hours, there were 74 males and 28 females (69.1±11.5 years).  Using Logistic Regression Analysis,  age <65 years (RR 1.683, 95%CI 1.943-3.031, p-value 0.010,OR: 2.647,95%CI: 1.009-6.941 , p-value 0.030)ATroponin-I <1 ug/L(RR 1.963, 95%CI 1.254-15.155, p-value 0.001,OR: 2.053, 95%CI: 1.240-17.601, p-value 0.004)Alesion numbers < 2(RR 1.402, 95%CI 1.330-5.955, p-value 0.001,OR:1.128, 95%CI: 1.120-10.617 , p-value 0.008)ATreatments using stents (RR 1.963, 95%CI 1.254-15.155, p-value 0.018,OR: 4.688, 95%CI:1.443-15.232, p-value 0.033)Avascular type such as A & B1 (RR 1.683, 95%CI 1.037-2.731, p-value 0.017,OR: 2.569, 95%CI: 1.751-8.794, p-value 0.036)Anon-complication (RR 2.153, 95%CI 1.979-4.473, p-value 0.039,OR: 3.891, 95%CI: 1.011-25.801, p-value 0.043). CONCLUSIONS: :If patients have characteristics like age <65 years, Troponin-I <1 ug/L, lesion numbers less than 2, using stents, vascular type diagnosed as A and B1, and non-complication, they could tend to discharge in 24 hours after PCI treatment.