Invasive investigations and revascularisation

Area of Science:

• Cardiology
• Diagnostic Medicine
• Interventional Cardiology

Background:

• Invasive investigation for coronary artery disease (CAD) presents significant costs and risks, including a mortality rate of approximately 1 in 2000.
• Current clinical practice does not support invasive investigation for all diagnosed CAD patients or those with possible angina due to impracticality and risk.
• Patient selection for invasive procedures is crucial, balancing symptom severity and prognosis.

Purpose of the Study:

• To define the criteria for referring patients for invasive investigation of coronary artery disease.
• To differentiate between symptomatic and prognostic indications for revascularization procedures.

Main Methods:

• Review of clinical guidelines and referral practices for invasive coronary artery disease investigations.
• Analysis of patient cohorts undergoing invasive cardiac procedures based on symptoms and prognostic indicators.

Main Results:

• Invasive investigation is reserved for patients with high-grade angina requiring symptomatic relief through revascularization.
• Patients identified as having a poor prognosis with medical management, and thus likely to benefit from revascularization, are also referred.
• A subset of patients referred for invasive investigation may not present with severe symptoms.

Conclusions:

• Referral for invasive coronary artery disease investigation should be based on a combination of symptomatic severity and prognostic risk.
• Careful patient selection is essential to optimize the use of invasive diagnostic and therapeutic cardiac interventions.
• Not all patients benefiting from revascularization present with high symptom burden.