[Conditioning the heart in cardiac surgery]

Area of Science:

• Cardiology
• Cardiovascular Surgery
• Physiology

Context:

• Cardiac surgery frequently leads to myocardial ischemia-reperfusion injury.
• Myocardial conditioning encompasses natural protective mechanisms like preconditioning, postconditioning, and remote conditioning.
• These methods aim to mitigate cardiac damage during surgical procedures.

Purpose:

• To review the current status of myocardial conditioning strategies in clinical cardiac surgery.
• To summarize research on preconditioning, postconditioning, and remote conditioning for myocardial protection.
• To explore pharmacological approaches for inducing ischemia-reperfusion resistance.

Summary:

• Despite two decades of research, myocardial conditioning techniques are not routinely used in cardiac surgery.
• Published studies report diverse and often conflicting results regarding the efficacy of these protective strategies.
• The review synthesizes trial data on conditioning methods and pharmacologic interventions.

Impact:

• Highlights the gap between research findings and clinical application of myocardial conditioning.
• Identifies the need for further research to resolve contradictory results and establish reliable protocols.
• Informs future strategies for enhancing myocardial protection during cardiac surgery.