title: Transradial catheterization may decrease the radial artery luminal diameter and impair the vasodilatation response in the access site at late term: an observational study.
abstract: The present study aimed to evaluate the late-term changes in radial artery luminal diameter (RAD) and vasodilatation response following transradial catheterization (TRC). TRC-inducing trauma to radial artery intima may trigger chronic phase vascular changes and lead to anatomical and functional impairment. There is controversial data whether the impairment persists or repairs later. Fifty-six consecutive patients undergoing TRC were enrolled prospectively. Baseline RAD, flow-mediated dilatation (FMD) and nitroglycerin-mediated dilatation (NMD) of the radial artery at the access site were measured before TRC by high-resolution ultrasound. Six months later; RAD, FMD and NMD were measured again at the same access site. RAD at the sixth month was reduced compared with pre-procedural measurements (2.85 ± 0.44 versus 2.74 ± 0.42 mm, p = 0.0001).The average FMD decreased to 5.66 ± 5.87 %, which was significantly lower than the observed pre-procedural FMD (9.45 ± 5.01 %) 6 months after TRC (p = 0.0001). Likewise, the average NMD at the sixth month was reduced compared with pre-procedural NMD (9.52 ± 6.77 versus 6.64 ± 6.51 %, p = 0.018). Logistic regression analysis indicated that pre-procedural radial artery diameter to sheath size ratio was the independent predictor of NMD reduction (95 % confidence interval, β = -9.74, p = 0.024). TRC may lead to a significant luminal diameter reduction and impairment of vasodilatation response in the radial artery at late term.
authors: Department of Cardiology, Acibadem University School of Medicine, Kerem Aydinlar Kampusu, Icerenkoy Mah. Kayisdagi Cad. No: 32, Ataşehir, Istanbul, Turkey. alibuturak@yahoo.com.
authors: Ali
authors: A
authors: Buturak
authors: Department of Radiology, Acibadem Kadıkoy Hospital, Istanbul, Turkey.
authors: Burak Murat
authors: BM
authors: Tekturk
authors: Department of Cardiology, Acibadem University School of Medicine, Kerem Aydinlar Kampusu, Icerenkoy Mah. Kayisdagi Cad. No: 32, Ataşehir, Istanbul, Turkey.
authors: Aleks
authors: A
authors: Degirmencioglu
authors: Department of Radiology, Acibadem University School of Medicine, Istanbul, Turkey.
authors: Sila
authors: S
authors: Ulus
authors: Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey.
authors: Ozgur
authors: O
authors: Surgit
authors: Department of Cardiovascular Surgery, Acibadem University School of Medicine, Istanbul, Turkey.
authors: Cem
authors: C
authors: Ariturk
authors: Department of Cardiology, Acıbadem Maslak Hospital, Istanbul, Turkey.
authors: Ertugrul
authors: E
authors: Zencirci
authors: Department of Cardiology, Acibadem University School of Medicine, Kerem Aydinlar Kampusu, Icerenkoy Mah. Kayisdagi Cad. No: 32, Ataşehir, Istanbul, Turkey.
authors: Sevket
authors: S
authors: Gorgulu
mesh_terms: D006328:Cardiac Catheterization / Q000379:methods*; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000175:diagnosis*; D004562:Electrocardiography; D004730:Endothelium, Vascular / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D017534:Radial Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D013997:Time Factors; D014463:Ultrasonography / Q000379:methods; D066253:Vascular Remodeling / Q000502:physiology*; D014664:Vasodilation / Q000502:physiology*
keywords: Catheterization; Radial; Remodeling; Vasodilatation
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