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KMID : 0191120160310081239
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Journal of Korean Medical Science
2016 Volume.31 No. 8 p.1239 ~ p.1245
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The Impact of Hemodialysis and Arteriovenous Access Flow on Extracranial Hemodynamic Changes in End-Stage Renal Disease Patients
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Sarah Chung
Jeong Hye-Seon
Choi Dae-Eun
Song Hee-Jung
Lim Young-Gi
Ham Joo-Yeon
Na Ki-Ryang
Lee Kang-Wook
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Abstract
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In this study, we characterized cerebral blood flow changes by assessment of blood flow parameters in neck arteries using carotid duplex ultrasonography and predictive factors for these hemodynamic changes. Hemodynamic variables were measured before and during hemodialysis in 81 patients with an arteriovenous access in their arm. Hemodialysis produced significant lowering in peak systolic velocity and flow volume of neck arteries and calculated total cerebral blood flow (1,221.9 ± 344.9 [before hemodialysis] vs. 1,085.8 ± 319.2 [during hemodialysis], P < 0.001). Effects were greater in vessels on the same side as the arteriovenous access and these changes were influenced by arteriovenous access flow during hemodialysis, both in the CCA (r = -0.277, P = 0.015) and the VA (r = -0.239, P = 0.034). The change of total cerebral blood flow during hemodialysis was independently related with age, presence of diabetes, and systemic blood pressure.
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KEYWORD
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Arteriovenous Access, Carotid Duplex Ultrasonography, Cerebral Blood Flow, Hemodialysis
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