Noninvasive Assessment of Coronary Artery Flow Parameters During Anexercise Test in Healthy Patients
Abstract
The aim: to define 1) coronary artery flow velocity values in healthy group at rest and during exercise tests; 2) differences of these values in the different age and sex groups. Materials and methods. There is a single center study of 145 consecutive healthy patients who underwent a bicycle exercise echocardiography with the analysis of coronary artery flow velocity in left anterior coronary artery (LAD). Coronary flow velocities were measured before and at the peak of exercise at the medium segment of the LAD. In addition, the coronary flow velocity reserve (CFVR) was calculated. Results. The rest velocity in LAD was 31.9 ± 8.3 cm/s, at the peak of exercise 77.4 ± 15.3 cm/s, ΔV 45.3 ± 13.4 cm/s, and CFVR 2.51 ± 0.59. There was not a significant difference in the subgroups of the different ages. Women had a lower CFVR in comparison with men (2.32 ± 0.55 vs 2.63 ± 0.58; p < 0.02). Conclusion. There are the values of Doppler coronary artery velocity of the healthy subjects for exercise tests. The study does not demonstrate the impact of aging on CFVR. Women have a lower CFVR during exercise tests.
About the Authors
Angela Valentinovna Zagatina
Cardiology center “Medika”
Russian Federation
Russian Federation
Nadezhda Timofeevna Zhuravskaya
Cardiology center “Medika”
Russian Federation
Russian Federation
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Review
For citations:
Zagatina A.V., Zhuravskaya N.T. Noninvasive Assessment of Coronary Artery Flow Parameters During Anexercise Test in Healthy Patients. Medical Visualization. 2016;(1):25-30. (In Russ.)
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