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Updated: Oct 11, 2025

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Management of ischaemia with non-obstructive coronary arteries (INOCA)
John F Beltrame1,2,3, Rosanna Tavella4,2,3, Dione Jones4,2
1Adelaide Medical School, University of Adelaide, Queen Elizabeth Hospital Campus, Woodville South, Adelaide, SA, Australia john.beltrame@adelaide.edu.au.
Insights
Many patients with chest pain lack obstructive coronary artery disease but may have ischaemia with non-obstructive coronary arteries (INOCA). This review details INOCA management, diagnosis, and personalized treatment strategies.
Area of Science:
- Cardiology
- Vascular Medicine
- Diagnostic Imaging
Background:
- Up to 50% of patients undergoing coronary angiography for chest pain show no obstructive coronary artery disease.
- These patients are often misdiagnosed with non-cardiac chest pain, overlooking potential ischemic origins.
- Ischaemia with non-obstructive coronary arteries (INOCA) represents a significant, treatable condition.
Purpose of the Study:
- To provide a comprehensive review of INOCA management.
- To outline diagnostic criteria for identifying patients requiring treatment.
- To discuss personalized treatment approaches and future research directions.
Main Methods:
- Review of existing literature on INOCA diagnosis and management.
- Analysis of current clinical guidelines and treatment strategies.
- Synthesis of evidence for personalized medicine in INOCA.
Main Results:
- INOCA affects a substantial patient population often misdiagnosed.
- Diagnostic evaluation is crucial for identifying treatable INOCA.
- Personalized treatment strategies are essential for effective management.
Conclusions:
- Effective management of INOCA requires accurate diagnosis and tailored treatment.
- Further research is needed to optimize treatment targets and strategies.
- Addressing INOCA improves patient outcomes and reduces healthcare burden.
Abstract:
Up to half of patients undergoing elective coronary angiography for the investigation of chest pain do not present with evidence of obstructive coronary artery disease. These patients are often discharged with a diagnosis of non-cardiac chest pain, yet many could have an ischaemic basis for their symptoms. This type of ischaemic chest pain in the absence of obstructive coronary artery disease is referred to as INOCA (ischaemia with non-obstructive coronary arteries). This comprehensive review of INOCA management looks at why these patients require treatment, who requires treatment based on diagnostic evaluation, what clinical treatment targets should be considered, how to treat patients using a personalised medicine approach, when to initiate treatment, and where future research is progressing.
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