After ISCHEMIA: is invasive physiology the only remaining gatekeeper for myocardial revascularization in chronic coronary syndromes?
Related Experiment Video
Updated: Dec 19, 2025

Author Spotlight: Enhancing Coronary Artery Revascularization
Published on: September 15, 2023
1Royal Devon & Exeter NHS Foundation Trust, Barrack Rd, Exeter, EX2 5DW, Devon, UK.
Insights
The ISCHEMIA trial may shift chronic coronary syndrome management, making revascularization a secondary treatment. Invasive fractional flow reserve (FFR) remains a crucial diagnostic tool for assessing myocardial ischemia.
Area of Science:
- Cardiology
- Clinical Trials
- Medical Diagnostics
Background:
- Chronic coronary syndrome management is evolving.
- The ISCHEMIA trial introduces new perspectives on treatment strategies.
- Established diagnostic tools like FFR are critical for patient care.
Purpose of the Study:
- To discuss the potential impact of the ISCHEMIA trial on chronic coronary syndrome.
- To highlight the role of coronary revascularization in patient management.
- To explore the complementary utility of invasive perfusion assessment (FFR) alongside trial findings.
Main Methods:
- Review of the International Study of Comparative Health Effectiveness With Medical And Invasive Approaches (ISCHEMIA).
- Discussion of invasive perfusion assessment techniques, specifically fractional flow reserve (FFR).
- Analysis of the diagnostic and management implications for patients with chronic coronary syndrome.
Main Results:
- The ISCHEMIA trial suggests a potential shift in treatment paradigms for chronic coronary syndrome.
- Coronary revascularization may be considered a secondary or 'bail-out' strategy.
- Fractional flow reserve (FFR) is a validated and essential tool for lesion-specific ischemia detection.
Conclusions:
- The ISCHEMIA trial findings necessitate a re-evaluation of current treatment guidelines.
- Integrating FFR with trial outcomes offers a comprehensive approach to managing chronic coronary syndrome.
- A balanced consideration of medical therapy, revascularization, and diagnostic tools is crucial.
Abstract:
The International Study of Comparative Health Effectiveness With Medical And Invasive Approaches (ISCHEMIA) has the potential to be a game changer in terms of the diagnostic and management approach to patients presenting with chronic coronary syndrome, suggesting that coronary revascularization may become almost like a "bail-out" strategy in the treatment of these patients. However, invasive perfusion assessment as a means of detecting the source of myocardial ischaemia at a lesion level, such as fractional flow reserve (FFR), has been validated in the past and established beyond doubt as a key diagnostic tool. The complementary role of the two approaches will be discussed here.
Related Concept Videos
Coronary Artery Disease V: Interprofessional Care
Acute Coronary Syndrome IV: Interprofessional Care
Myocarditis I: Introduction
Coronary Artery Disease II: Pathophysiology
Pathophysiology of Cardiac Performance

