Original articleCardiovascularRadial Artery Diameter and Vasodilatory Properties After Transradial Coronary Angiography
Section snippets
Patients and Methods
This study was approved by the Regional committee for medical ethics and all patients gave their written informed consent (REK 076-04, approved May 5, 2004).
Results
The right RA was occluded in one patient (3.3%) without giving any symptoms. This patient was excluded, thus leaving 29 patients for further analysis. Table 3 shows mean baseline diameters and diameters after FMD and NMD in right and left RAs. Baseline diameter was significantly smaller in the right compared with the left RA. In both arteries significant responses to FMD and NMD were obtained (Table 4). When expressed as the absolute diameter change in millimeters, the dilation was slightly
Comment
In this study we have demonstrated a significant decrease in RA diameter one year after transradial angiography, while the responses to FMD and NMD did not significantly differ between the catheterization exposed right and the unexposed left RA. Thus, both endothelial dependent and endothelial independent vasodilatory properties were preserved. Due to the reduced baseline diameter, there was a significantly reduced diameter after vasodilatory stimuli in the right compared with the left RA.
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