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- W3082374311 abstract "Abstract Purpose Animal studies have shown that endothelial denudation abolishes vasodilation in response to increased shear stress. Interestingly, shear-mediated dilation has been reported to be reduced, but not abolished, in coronary artery disease (CAD) patients following catheterization. However, it is not known whether this resulted from a priori endothelial dysfunction in this diseased population. In this study, we evaluated shear-mediated dilation following catheterization in healthy young men. Methods Twenty-six (age: 24.4 ± 3.8 years, BMI: 24.3 ± 2.8 kg m −2 , V O 2peak : 50.5 ± 8.8 ml/kg/min) healthy males underwent unilateral transradial catheterization. Shear-mediated dilation of both radial arteries was measured using flow-mediated dilation (FMD) pre-, and 7 days post-catheterization. Results FMD was reduced in the catheterized arm [9.3 ± 4.1% to 4.3 ± 4.1% ( P < 0.001)] post-catheterization, whereas no change was observed in the control arm [8.4 ± 3.8% to 7.3 ± 3.8% ( P = 0.168)]. FMD was completely abolished in the catheterized arm in five participants. Baseline diameter ( P = 0.001) and peak diameter during FMD ( P = 0.035) were increased in the catheterized arm 7 days post-catheterization (baseline: 2.3 ± 0.3 to 2.6 ± 0.2 mm, P < 0.001, peak: 2.5 ± 0.3 to 2.7 ± 0.3 mm, P = 0.001), with no change in the control arm (baseline: 2.3 ± 0.3 to 2.3 ± 0.3 mm, P = 0.288, peak: 2.5 ± 0.3 to 2.5 ± 0.3 mm, P = 0.608). Conclusion This is the first study in young healthy individuals with intact a priori endothelial function to provide evidence of impaired shear-mediated dilation following catheterization. When combined with earlier studies in CAD patients, our data suggest the catheterization impairs artery function in humans." @default.
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- W3082374311 date "2020-08-28" @default.
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- W3082374311 title "Impact of catheterization on shear-mediated arterial dilation in healthy young men" @default.
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- W3082374311 doi "https://doi.org/10.1007/s00421-020-04473-8" @default.
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