Purpose: To study clinical features and therapeutic results of all 99 coronaryangiography cases of ACS (acute coronary syndrome), with or without percutaneous coronary intervention (PCI) at Nhan Dan Gia Dinh Hospital Materials and methods: A cross-sectional, descriptive, retrospective and prospective study of all 99 coronaryangiography cases of ACS, with or without PCI at Nhan Dan Gia Dinh Hospital from 04/2009 to 09/2009, included: 61 STEMI, 38 NSTEMI + UAP Results: We performed PCI in 75 cases, 24 cases were non-indicated or over-indicated PCI.