Perioperative myocardial infarction--aetiology and prevention

Area of Science:

• Cardiology
• Anesthesiology
• Vascular Medicine

Background:

• Perioperative myocardial infarction (PMI) significantly increases morbidity and mortality following non-cardiac surgery.
• The causes of PMI are complex, involving changes in coronary plaque and myocardial oxygen balance.
• Current risk stratification methods have limitations, necessitating new prevention strategies.

Purpose of the Study:

• To explore the multifactorial etiology of perioperative myocardial infarction.
• To discuss the shift in paradigm for preventing PMI in patients undergoing non-cardiac surgery.
• To highlight the importance of pharmacological interventions in perioperative cardiac care.

Main Methods:

• Review of current understanding of PMI pathophysiology.
• Analysis of the limitations of traditional non-invasive cardiac stress testing.
• Evaluation of risks associated with coronary angiography and revascularization.
• Discussion of a combined approach of selective non-invasive testing and aggressive pharmacological therapy.

Main Results:

• The perioperative period causes significant, unpredictable changes in coronary plaque and oxygen balance.
• A single intervention is insufficient for preventing PMI; a multifactorial strategy is needed.
• Pharmacological plaque stabilization may be as vital as managing oxygen supply/demand.

Conclusions:

• A comprehensive, step-wise approach combining selective non-invasive testing and aggressive perioperative pharmacological therapy is recommended.
• Perioperative plaque stabilization is a key strategy for reducing PMI.
• This approach aims to improve overall postoperative outcomes in patients undergoing non-cardiac surgery.