The International Day for Interventional Cardiology is observed worldwide every September 16. This day was established by the United Nations General Assembly in 2022 to commemorate the first successful coronary angioplasty performed on an awake patient by Andreas Grüntzig on September 16, 1977. The observance aims to highlight the significance of interventional cardiology, particularly angioplasty, in reducing preventable death rates and improving health and quality of life. Interventional cardiology, a subdiscipline of cardiology, focuses on catheter-based treatments for structural heart diseases and includes various procedures such as percutaneous coronary intervention, heart valve repair, and congenital heart defect correction. The World Health Organization leads the awareness campaign associated with this observance, emphasizing the benefits of these minimally invasive procedures, including shorter recovery times and lower costs compared to traditional heart surgery.