An Study Looking at Percutaneous Coronary Intervention Outcomes for Octogenarians

The project is a retrospective observational study designed to look at the demographics, clinical presentation, comorbidities, angiographic findings, procedural factors and outcomes of participants aged 80 years and over (octogenarians) who had percutaneous coronary intervention (PCI) at our hospital trust between 1st January 2017 and 31st December 2023. The data will be reviewed to form a detailed description of the characteristics of the cohort. It will then be analysed to determine if there are associations between certain participant variables and outcomes, including inpatient complication rates and the rate of Major Adverse Cardiovascular Events (MACE) at one-year post procedure. The initial data will be identified from the local database which is required to be maintained and submitted to the UK's National Institute for Cardiovascular Outcomes Research (NICOR) database. Missing data or additional data not captured on this database, such as participant frailty and the coronary artery disease severity and complexity (measured by the SYNTAX score), will be collected from a combination of patient letters and Electronic Patient Records (EPR), including blood test results and imaging. Experienced interventional cardiologists will analyse the angiograms to collect the pre and post intervention SYNTAX score in addition to the angiography-derived calcification severity of the culprit artery. The data will be analysed to describe the cohort in detail. Univariate and multivariate cox regression analysis will be used to establish any associations between variables such as participant frailty, angiography-derived calcification severity and residual SYNTAX score with participant outcomes.