Keele Research Repository

The rates and causes of readmission at different time periods after PCI remain incompletely elucidated. Among the 2,412,000 patients, 2.5% were readmitted between 0-7 days, 7.6% between 8 and 30 days, 8.9% between 31 and 90 days, and 8.0% between 91 and 180 days (cumulative rate 2.5%, 9.9%, 18.0% and 24.8%, respectively). Majority of readmissions during each time period were due to non-cardiac causes (53.1% to 59.6%). Non-specific chest pain was the most common identifiable non-cardiac cause for readmission during each time period (12.0% to 22.7% of non-cardiac readmissions). Coronary artery disease including angina was the most common cardiac cause for readmission during each time period (36.8% to 41.2% of cardiac readmissions).