[Angina in non-obstructive coronary artery disease: some examples from daily practice]

Angina in non-obstructive coronary artery disease (ANOCA) is a common clinical condition affecting 20-50% of patients undergoing coronary angiography for suspected angina. Despite recent 2024 European guidelines on chronic coronary syndrome emphasizing its significance and clinical implications, ANOCA remains often underdiagnosed and undertreated. The management of ANOCA differs from obstructive coronary artery disease and requires careful interpretation of diagnostic tests and tailored treatment based on accurate clinical assessment. ANOCA diagnosis may involve microvascular dysfunction or vasospasm (epicardial or microvascular), and treatment should be individualized. The impact on patients’ quality of life is considerable, with symptom regression due to correct diagnosis. A timely diagnostic and therapeutic approach is crucial to improving patient’s quality of life. This review aims to provide a practical guide in managing ANOCA patients, emphasizing the need for comprehensive coronary functional evaluation and optimal risk factor management.