Prospective Radial Artery Study Following Induction of Reactive Hyperemia Looking at Degree of Diameter Growth in Healthy Subjects

Autor:	Yolanda Munoz Maldonado, Simon R. Dixon, Abhay N. Bilolikar, Amr E. Abbas, Phillip J. Bendick
Rok vydání:	2013
Předmět:	medicine.medical_specialty business.industry medicine.medical_treatment Healthy subjects Ultrasound probe Median time Anesthesia Internal medicine medicine.artery medicine Cardiology Radiology Nuclear Medicine and imaging In patient Small vessel Radial artery Cardiology and Cardiovascular Medicine business Reactive hyperemia Cardiac catheterization
Zdroj:	Journal of Interventional Cardiology. 26:310-316
ISSN:	0896-4327
Popis:	Objectives This “proof of concept” study sought to determine the magnitude of radial artery diameter change in 20 healthy subjects by induction of flow mediation dilatation (FMD) via reactive hyperemia. Background Transradial access in the cardiac catheterization laboratory is becoming more commonplace due to lower bleeding complications and increase in patient comfort. However, access to the radial artery can be challenging due to small vessel size. We sought to examine whether FMD can be used to increase radial artery diameter, potentially allowing improved transradial access. Methods We obtained baseline radial artery diameter via a high frequency ultrasound probe on 20 healthy subjects. A standard reactive hyperemia protocol was employed in the right arm, followed by successive measurements of the subject's radial artery at pre-specified intervals. Radial artery diameter measurements were performed offline by the sonographer and also a blinded reader to which agreement was sought. Results We found a mean increase in radial artery size of 0.48 ± 0.13 mm at peak reactive hyperemic states. This correlated to a mean increase in overall radial artery diameter of 21.7 ± 6.7%. The median time to peak dilation was 30 seconds (95% CI; 15–45 seconds), and the median duration of maximal dilation was 60 seconds (95% CI; 45–75 seconds). Conclusions Among healthy subjects, we demonstrated a mean maximal increase in radial artery diameter of 21.7 ± 6.7% via FMD. This finding supports the notion that radial artery diameter can be increased noninvasively via a reactive hyperemia protocol. (J Interven Cardiol 2013;26:310–316)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b97f2f9082cac1ba946c8e5247973946 https://doi.org/10.1111/joic.12030 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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