Biomedical

Acute ischemic heart disease and interventional cardiology: a time for pause



  Peer Reviewed

Abstract

Abstract

Background

Acute coronary syndrome treatment has changed. Patients now get early angiography and revascularization. This approach relies on angiographic images and technical ability. Medical management based on clinical presentation has declined. Advanced cardiac technology and studies showing benefits of invasive procedures have driven this change.

Discussion

This review examines the evidence critically. It covers reperfusion for ST-elevation myocardial infarction, invasive intervention after thrombolysis, and invasive management for non-ST-elevation myocardial infarction and unstable angina. It also considers cost-effectiveness and real-world factors. The review explores scientific, economic, and philosophical implications of this clinical practice change.

Summary

Evidence does not support widespread use of invasive procedures for all acute coronary syndromes. Overuse of these procedures negatively impacts cardiac healthcare organization and has unwanted economic and scientific effects. A new approach using better clinical risk assessment is needed for acute coronary syndrome treatment.


Key Questions

Is primary angioplasty better than thrombolysis for heart attacks?

Primary angioplasty may offer a small benefit over thrombolysis, but the evidence is not conclusive. The advantage depends on how quickly angioplasty can be performed. Thrombolysis remains an acceptable treatment option, especially when angioplasty would cause significant delays.

Should all patients with acute coronary syndromes get invasive procedures?

Not all patients with acute coronary syndromes need invasive procedures. The benefits of routine invasive management are modest. A more selective approach based on individual patient risk may be appropriate.

How does time affect heart attack treatment outcomes?

Time is critical in heart attack treatment. Each hour of delay reduces the benefits of reperfusion therapy. The advantage of primary angioplasty over thrombolysis decreases when door-to-balloon time exceeds door-to-needle time by 60 minutes.

Are invasive heart procedures cost-effective?

The cost-effectiveness of routine invasive procedures for acute coronary syndromes is questionable. Higher rates of invasive procedures do not always lead to better outcomes. The optimal rate of invasive intervention may be 20-30% of patients.

What are the risks of invasive heart procedures?

Invasive heart procedures carry risks such as bleeding complications. Recent studies show increased short-term mortality with routine invasive strategies. The benefits must be weighed against these risks for each patient.