On October 28th, 2023, the Canadian Cardiovascular Society (CCS) released a new classification system for acute atherothrombotic myocardial infarction (MI) based on stages of tissue injury severity (CCS-AMI). This expert consensus is the result of decades of data on acute MI with reperfusion therapy.


Dr Ankur Kalra is joined this week on Parallax by Dr Andreas Kumar, Chairperson of the Writing Group of the Expert Consensus Statement, Associate Professor of Medicine at the Northern Ontario School of Medicine, Cardiologist at Health Sciences North, and President of the Canadian Society of Cardiovascular MRI.


In this informative episode, Dr Kumar shares what led his team and the CCS to introduce a new classification scheme for acute MI. He discusses how research from the past 15 years highlighted the need to incorporate tissue changes resulting from acute myocardial infarction (MI) into clinical practice. Dr Kumar outlines the four stages of CCS-AMI, and we gain insight into how this novel classification scheme could impact bedside medicine.


Dr Kalra asks about treatment optimization based on stages of tissue injury severity. Dr Kumar delves into the risks associated with the four stages, with a particular focus on CCS Stage 4, MI with reperfusion haemorrhage. Finally, Dr Kumar highlights how the use of the classification system can lay the foundation for future research studies and bring us closer to finding answers and identifying agents suitable for different stages of acute MI.


What are the key messages from CCS-AMI? What are the data behind the new scheme? How might the new classification scheme impact the development of new treatment options?



Kumar A, et al. The Canadian Cardiovascular Society Classification of Acute Atherothrombotic Myocardial Infarction Based on Stages of Tissue Injury Severity: An Expert Consensus Statement. CJC 2023. https://doi.org/10.1016/j.cjca.2023.09.020 


Gaba P & Bhatt DL. Promise of a Novel Classification System for Acute Myocardial Infarction. CJC 202. https://doi.org/10.1016/j.cjca.2023.10.011


Questions and comments can be sent to “podcast@radcliffe-group.com” and may be answered by Ankur in the next episode.
Guest: @AndreasKumarMD Host: @AnkurKalraMD and produced by: @RadcliffeCARDIO.

Episode Number



42m 43s