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Impact of transradial coronary procedures on radial artery function
Zhenxian Yan1, Yujie Zhou, Yingxin Zhao
11Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, The Key Laboratory of Remodeling-related Cardiovascular Disease, Ministry of Education, Beijing, China.
Abstract:
We evaluated the impact of transradial coronary procedures on the vasodilatory function of the radial artery. A total of 65 patients who underwent transradial coronary procedures were enrolled. All patients were examined with B-mode high-resolution ultrasound. Radial artery baseline diameter and response to flow-mediated dilation (FMD) and nitroglycerin-mediated dilation (NMD) were measured in the right radial artery. The FMD of the right radial artery was 11.5%, 4.1%, and 0.7%, respectively, before the procedures, 1 day, and 3 months after the procedures (P < .05 at 1 day, P < .01 at 3 months). The NMD of the right radial artery was 17.6%, 5.4%, and 6.3%, respectively, before the procedures, 1 day, and 3 months after the procedures (P < .05 at 1 day, P < .05 at 3 months). Transradial coronary procedures decrease radial artery FMD and NMD resulting in immediate and persistent blunting of vasodilatory function.
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