Complex, high-risk percutaneous coronary intervention types, trends, and in-hospital outcomes among different age groups: An insight from a national registry.

The findings can be summarized in the following points: (a) The risk factor profile evolved toward a lower cardiometabolic risk profile as patients aged, with a lower prevalence of diabetes mellitus and current smokers in the octogenarians compared to younger age groups; although there was a clear trend toward an increase in the prevalence of cardiovascular risk factors within the same age group; (b) type of CHiP cases varied by age, with CTO, prior CABG, and severe vascular calcification most often encountered in younger patients, while prior CABG, severe vascular calcification, and renal failure

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