Optimize your use of stress tests: a Q&A guide.

Area of Science:

• Cardiology
• Diagnostic Imaging
• Preventive Medicine

Background:

• Coronary artery disease (CAD) diagnosis relies on accurate stress testing.
• Preexisting electrocardiographic (EKG) changes can complicate stress test interpretation.
• Patient's ability to exercise impacts test selection.

Purpose of the Study:

• To provide guidelines for selecting appropriate stress testing modalities for suspected CAD.
• To differentiate testing strategies based on patient risk and EKG status.
• To clarify the role of stress testing in asymptomatic individuals.

Main Methods:

• Review of current guidelines and evidence for stress testing in CAD.
• Categorization of patients based on CAD probability (low, intermediate, high).
• Consideration of EKG abnormalities and exercise capacity.

Main Results:

• Exercise stress testing without imaging is recommended for low-to-intermediate probability CAD, barring EKG interference.
• Stress testing with imaging is indicated for high-probability CAD or those with EKG changes.
• Pharmacologic stress testing is a viable alternative for patients unable to exercise adequately.

Conclusions:

• Appropriate stress test selection optimizes diagnostic accuracy for CAD.
• Stress testing should not be used for routine screening in asymptomatic individuals.
• Tailoring stress tests to patient characteristics ensures effective CAD evaluation.