Functional coronary angiogram findings in angina with non-obstructive coronary arteries patients with coronary slow flow

O. Girolamo , Muhammad Dzafir Ismali , Rosanna Tavella , Eng Lee Ooi , Sivabaskari Pasupathy , Sarena La , A. Sheikh , C. Zeitz , John F. Beltrame ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.1016/j.ahj.2025.107287

The conventional marker of CMD (i.e. CFR <2) was similar in patients with/without the CSFP. However alternative hemodynamic markers of impaired coronary microvascular function were abnormal in patients with the CSFP, including resting/hyperemic coronary microvascular resistance. Moreover, cTFC is a simple semi-quantitative marker correlated with coronary microvascular resistance and thus has clinical utility in the diagnosis of the CSFP.