© Elsevier Masson SAS. All rights reserved.
Annales de cardiologie et d’angéiologie 64 (2015) S3-S22
35
es
Journées de l’Hypertension Artérielle
9
th
International Meeting of the French Society of Hypertension
COMMUNICATIONS ORALES
CO 01 Cœur et vaisseaux / Heart and vessels
CO-01
Retinal arterioles remodeling evaluated by adaptive optics camera in
humans and its relationships with age, blood pressure and cardio-
vascular risk factors
Le remodelage des artérioles rétiniennes chez les humains étudié par
l’optique adaptative et ses relations avec l’âge, la pression et les fac-
teurs de risque cardiovasculaire
D. ROSENBAUM
1
, A. MATTINA
1
, E. KOCH
2
, F. ROSSANT
3
,
A. GALLO
1
, N. KACHENOURA
2
, M. PAQUES
2
, A. REDHEUIL
3
,
X. GIRERD
1
1
Unité de Prévention des Maladies Cardiovasculaires, Pr Bruckert, Hôpi-
tal Pitié-Salpetrière, AP-HP, Paris, France.
2
Unité Inserm 968, Institut de la Vision, CIC 503, Centre Hospitalier
National DES 15/20, AP-HP, Paris, France.
3
Sorbonne Université, UMPC Univ. Paris 06, CNRS 7371, Laboratoire
d’Imagerie Biomédicale, Paris, France.
Background Microvascular vessels and microvascular remodeling play a
major role in blood pressure (BP) regulation and peripheral tissue oxygen
delivery. The adaptive optics camera (AOC), a novel technique of fundus
image analysis enables the noninvasive characterization of microvascular
remodeling in the retina on a large scale. Our objective was to assess the role
of Blood Pressure (BP), ageing, diabetes and other risk factors on retinal arte-
riolar remodeling using AOC.
Methods In 1.000 consecutive subjects in primary prevention with risk
factors, we used the new RTX1
®
AOC (Imagine-Eyes, Orsay, France) and
a semi-automated segmentation software to measure Wall Thickness (WT),
Internal Diameter (ID) and to calculate Wall-to-Lumen Ratio (WLR) and
Wall Cross Sectional Area (WCSA) on retinal arteriolar microvasculature.
BP was assessed on standard conditions using oscillometric device during
the AOC assessment. Hypertension was defined as the presence of Systolic
BP>140mmHg and/or Diastolic BP>90mmHg. Standardized clinical and
biological examinations were performed to assess for the presence of dia-
betes, dyslipidemia, obesity and current smoking which were defined
according to guidelines.
Results Overall, ageing was associated with an increase in WLR due to
sole WT increase. Subjects with office hypertension (n=313) had inward
eutrophic remodeling with increased WLR (0.325±0.049 vs 0.292±0.056) due
JEUDI 17 DÉCEMBRE 2015
14:00 – 15:30
Retinal Arteriolar Microvasculature Blood Pressure
N WLR ID.-μm WT.-μm WCSA.-μm
2
Systolic BP.-MmHg Diastolic BP.-MmHg
Gender
Female 489 0.301 ± .0.50 79.0 ± 10.9 23.5 ± 3.6 3386 ± 817* 129.5 ± 21.2 72.2 ± 13.7
Male 511 0.300 ± .0.57 77.3 ± 11.1 22.89 ± 4.2 3234 ± 886 132.2 ± 19.4 71.5 ± 13.8
Hypertension
Yes 313 0.325 ± .0.49 ‡ 75.6 ± 10.9 † 24.2 ± 4.0 ‡ 3392 ± 832 153.1 ± 16.1 ‡ 82.1 ± 14.8 ‡
No 687 0.292 ± .0.56 78.6 ± 10.8 22.7 ± 3.6 3249 ± 873 120.8 ± 12.4 67.1 ± 10.3
Diabetes
Yes 180 0.308 ± .0.52 79.5 ± 11.2 24.2 ± 3.8 ‡ 3523 ± 861† 134.4 ± 19.6 70.8 ± 13.6
No 820 0.299 ± .0.55 77.8 ± 11.2 23.0 ± 3.9 3256 ± 844 130.2 ± 20.5 72.1 ± 13.9
Dyslipidemia
Yes 436 0.301 ± .0.57 77.6 ± 11.1 23.3 ± 4.1 3333 ± 828 130.4 ± 20.0 69.4 ± 12.2 ‡
No 564 0.301 ± .0.53 78.6 ± 11.1 23.2 ± 3.7 3281 ± 886 131.3 ± 20.6 73.7 ± 14.6
Obesity
Yes 164 0.303 ± .0.55 77.0 ± 11.4 23.2 ± 3.9 3255 ± 838 136.1 ± 20.3 ‡ 76.3 ± 13.2 ‡
No 836 0.300 ± .0.55 78.2 ± 10.8 23.1 ± 3.9 3307 ± 838 129.3 ± 20.3 70.5 ± 13.7
WLR is Wall-to-Lumen Ratio, ID is internal Diameter, WT is Wall Thickness, WCSA is Wall Cross Sectionnal Area, BP is blood pressure * p<.01, † p<001
‡ p<.0001 between groups