Artery Research

Volume 5, Issue 4, December 2011, Pages 174 - 174

P6.11 RETINAL PULSE WAVE VELOCITY IN YOUNG NORMOTENSIVE AND MILDLY HYPERTENSIVE SUBJECTS

Authors
K. Kotliar1, H. Hanssen2, 3, K. Eberhardt1, M. Halle2, U. Heemann1, M. Baumann1
1Department of Nephrology, Technische Universität München, Munich, Germany
2Department of Prevention and Sports Medicine, Technische Universität München, Munich, Germany
3Division of Sports Medicine, Institute of Exercise and Health Sciences (ISSW), University of Basel, Basel, Switzerland
Available Online 29 November 2011.
DOI
10.1016/j.artres.2011.10.096How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Hypertension is characterized by microvascular remodeling resulting in an increased wall/lumen ratio. Increased microvascular stiffness contributes to an increase in wall/lumen ratio. We aimed to investigate the possibility to transform the measurement of macrovascular stiffness into a microvascular environment. We assessed retinal pulse wave velocity (rPWV) non-invasively in 65 male normoalbuminuric normotensive to mildly hypertensive subjects (age: 28.7±6.0 years). Time dependent alterations of retinal arterial diameter were measured by the Dynamic Vessel Analyzer. The data was filtered and evaluated by methods of signal analysis and rPWV was computed using three different methods. ‘Method1’ used filtration at heart rate (HR), ‘Method2’ filtered at higher HR multiples and ‘Method3’ used additionally linear fit for data averaging. Besides, office blood pressure (BP) and urinary albumine/creatinine ratio were assessed. ‘Method1’ was not associated with BP, while both methods applying filtration at high HR multiples showed a strong association with systolic BP throughout the cohort (r=0.49, r=0.63 P<0.001). Based on the highest association, ‘Method3’ was proposed to characterize rPWV. As the cohort was divided according to BP, mildly hypertensive patients showed significantly higher rPWV (1243±694 units/second) than subjects with high-normal BP (786±486 units/second, P<0.01) or normotensive subjects (442±148 units/second, P<0.001). Applying methodological principles for aortic PWV we consider rPWV as a non-invasive measure of microvascular stiffness. Our data suggests that filtration at higher HR multiples and linear fit result in strong association with BP. As our study was performed in normoalbuminuric subjects, rPWV may add detailed insights to early microvascular pathophysiology, potentially beyond microalbuminuria.

Journal
Artery Research
Volume-Issue
5 - 4
Pages
174 - 174
Publication Date
2011/11/29
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2011.10.096How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - JOUR
AU  - K. Kotliar
AU  - H. Hanssen
AU  - K. Eberhardt
AU  - M. Halle
AU  - U. Heemann
AU  - M. Baumann
PY  - 2011
DA  - 2011/11/29
TI  - P6.11 RETINAL PULSE WAVE VELOCITY IN YOUNG NORMOTENSIVE AND MILDLY HYPERTENSIVE SUBJECTS
JO  - Artery Research
SP  - 174
EP  - 174
VL  - 5
IS  - 4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2011.10.096
DO  - 10.1016/j.artres.2011.10.096
ID  - Kotliar2011
ER  -