P80 IDENTIFICATION OF RADIAL VASCULAR WALL ABNORMALITIES BY VERY-HIGH FREQUENCY ULTRASOUND IN PATIENTS WITH FIBROMUSCULAR DYSPLASIA: THE FUCHSIA STUDY
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- 10.1016/j.artres.2017.10.096How to use a DOI?
- Abstract
Aim: This case-control study is aimed at identifying radial vascular wall abnormalities in patients with fibromuscular dysplasia (FMD).
Methods: High-frequency ultrasound scans of radial arteries were obtained by VevoMD (70 MHz probe, FUJIFILM, VisualSonics). Radial wall showed two echogenic interfaces: the 1st (lumen-media) and the 2nd (media-adventitia). Intima-media (IMT), adventitia (AT), and global thickness (IMAT) and wall cross-sectional area (WCSA) Measured. Vascular wall disarray was assessed calculating the root mean square error (RMSE) between 20 gray-level profiles crossing the two interfaces and the profile obtained averaging them, normalized for the maximum value of the corresponding mean profile (RMSE/mean).
Results: 11 treated hypertensive female FMD patients and 8 healthy controls (C) were enrolled (age 52±5 vs 45±13years, p = 0.51; BMI 26±3 vs 23±3kg/mg, p = 0.12; mean BP 97±7 vs 85±10 mmHg, p = 0.01). Radial lumen was similar; IMT (0.166±0.037 vs 0.128±0.022mm, p = 0.03), AT (0.114±0.029 vs 0.083±0.019mm, p = 0.008) and IMAT (0.281±0.042 vs 0.211±0.027mm, p = 0.003) were higher in FMD. Wall/lumen ratio was similar and WCSA increased in FMD.
The maximum values of 1st (121±43 vs 157±22, p = 0.09) and 2nd interface 109±44 vs133±18, p = 0.09) tended to be lower, whereas RMSE/mean was higher in FMD (1st 1.31±0.24 vs 0.83±0.32, p = 0.006; 2nd 1.37±0.38 vs 0.94±0.32, p = 0.03). The difference was attenuated for the 1st but not for the 2nd interface when considering age and mean BP as covariates (p = 0.054 and p = 0.016 respectively).
Conclusions: The radial artery wall of hypertensive FMD patients shows increased thickness and its ultrastructure is characterized of loss of echogenicity and inhomogeneity of the two echogenic layers.
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TY - JOUR AU - Rosa Maria Bruno AU - Nicole Di Lascio AU - Daniela Guarino AU - Saverio Vitali AU - Piercarlo Rossi AU - Davide Caramella AU - Stephane Laurent AU - Pierre Boutouryie AU - Stefano Taddei AU - Lorenzo Ghiadoni AU - Francesco Faita PY - 2017 DA - 2017/12/06 TI - P80 IDENTIFICATION OF RADIAL VASCULAR WALL ABNORMALITIES BY VERY-HIGH FREQUENCY ULTRASOUND IN PATIENTS WITH FIBROMUSCULAR DYSPLASIA: THE FUCHSIA STUDY JO - Artery Research SP - 75 EP - 75 VL - 20 IS - C SN - 1876-4401 UR - https://doi.org/10.1016/j.artres.2017.10.096 DO - 10.1016/j.artres.2017.10.096 ID - Bruno2017 ER -