This is a single center, retrospective observation study collecting data on 88938 coronary angiography and / or coronary intervention patients from January 2007 to Decemeber 2018. Data regarding demographic information, admission diagnoses and history of present illness, biomarkers and details on preventive hydration and medications will be collected. The primary endpoint of this study is All-cause mortality, and secondary endpoints are Adverse Cardiovascular and Kidney Events.