[Complications in selective percutaneous coronary interventions: analysis of 2,868 cases].

OBJECTIVE

This report provides analysis of the complication rates, the risk factors, prevention and treatments of the complications of selective coronary interventions.

METHODS

The types, the incidence, and the annual distribution characteristics of the complications in 2 868 cases of coronary interventions performed from October 1987 to December 2000 were reviewed, and the risk factors, prevention and treatments of the complications were analyzed.

RESULTS

During the study period, 2 868 procedures of percutaneous coronary interventions (PCI) were performed. The total complication rate of PCI was 8.30% (6.33% - 20.00%). The procedure-related mortality rates were 0.07%. The complications included non-fatal Q wave myocardial infarctions (0.17%), coronary artery dissecting (2.58%), acute coronary artery occlusion (1.99%), coronary artery thrombosis (0.38%), coronary artery spasm (1.32%), coronary artery perforation (0.31%), severe arrhythmia (0.63%), severe contrast allergic reaction (0.07%), peripheral vascular complication (0.90%), and heart failure (0.10%). Emergent coronary artery bypass surgery (CABG) was required in 0.10% of the patients with PCI. The independent risk factors of the complications of PCI included unstable angina, coronary multivessel disease, and heart failure.

CONCLUSIONS

The complication rates of PCI decreased with the accumulation of experiences. The complication rates in this group of patients are lower than the reported ones. This result is probably due to strictly selecting the indication, actively preventing and treating the complications.