2. Amsterdam UMC, University of Amsterdam, Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
3. Haga Teaching Hospital, Den Haag, The Netherlands
4. Amphia Hospital, Breda, The Netherlands
5. University Medical Center Utrecht, Utrecht, the Netherlands
6. Careggi University Hospital, Florence, Italy
7. University of Antwerp - Antwerp University Hospital, Antwerp, Belgium
8. Med. Klinik I, Städtische Kliniken Neuss, Lukaskrankenhaus GmbH, Neuss, Germany
9. Erasmus Medical Center, Rotterdam, the Netherlands
10. Imperial College London, London, United Kingdom
11. Amsterdam UMC, University of Amsterdam, Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands, NETHERLANDS
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Methods and results:Intracoronary Doppler flow velocity measurements to obtain CFR and CFC were performed after inducing hyperemia in 390 non-obstructed vessels of patients who were scheduled for elective percutaneous coronary intervention (PCI) of another vessel. Akaike’s Information Criterion (AIC) revealed age, female gender, history of myocardial infarction, hypercholesterolemia, diastolic blood pressure, oral nitrates and rate pressure product as independent predictors of CFR and CFC. After regression analysis, age and female gender were associated with lower CFR and age was associated with worse CFC in angiographically non-obstructed vessels.
Conclusions:Age and female gender are associated with lower CFR, and age with worse CFC in an angiographically non-obstructed coronary artery. CFC seems to be less sensitive to variations in clinical and hemodynamic parameters than CFR, and therefore is a promising tool in contemporary clinical decision making in the cardiac catheterization laboratory.
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