[Percutaneous coronary intervention in acute coronary syndrome: single center experience from 4670 patients].

OBJECTIVE: To explore the in-hospital effect of percutaneous coronary intervention (PCI) on patients with acute coronary syndrome (ACS).

METHODS: The clinical data of 4670 hospitalized patients with ACS, 1750 with acute myocardial infarction (AMI, 37.5%) within 30 days and 2920 with unstable angina pectoris (62.5%), undergoing PCI from August 1989 to October 2004, were analyzed.

RESULTS: The total success rate of PCI procedure was 98.1% (4579/4670) for all patients, and the patency rate of infarction related artery of emergency PCI was 98.2% (825/840) in the patients with AMI onset within 24 h. The complication rate related to PCI procedure was 6.5% (304/4670). The total in-hospital mortality was 1.1% (52/4670) and the mortality during PCI procedure was 0.04% (2/4670). The duration from admission to PCI was 3.5 days +/- 2.1 days and the whole hospital stay was 12 days +/- 8 days.

CONCLUSION: The success rate of PCI procedure in patients with ACS is high, while the in-hospital mortality and the complication rates are low, which shows that PCI has an ideal short-term effect in patients with ACS.