Early Increase of Retinal Arterial and Venous Blood Flow Velocities at Color Doppler Imaging in Brittle Type 1 Diabetes after Islet Transplant Alone

2006 ◽  
Vol 81 (9) ◽  
pp. 1274-1277 ◽  
Author(s):  
Massimo Venturini ◽  
Paolo Fiorina ◽  
Paola Maffi ◽  
Claudio Losio ◽  
Andrea Vergani ◽  
...  
Keyword(s):  
Blood Flow ◽  
Type 1 Diabetes ◽  
Color Doppler ◽  
Venous Blood ◽  
Color Doppler Imaging ◽  
Doppler Imaging ◽  
Venous Blood Flow ◽  
Early Increase ◽  
Blood Flow Velocities

Effect of Intravitreal Aflibercept on Central Retinal Arterial Blood Flow in Type 1 Retinopathy of Prematurity

2017 ◽  
Vol 27 (6) ◽  
pp. 751-755 ◽  
Author(s):  
Emine A. Sukgen ◽  
Gökhan Söker ◽  
Yusuf Koçluk ◽  
Bozkurt Gülek
Keyword(s):  
Blood Flow ◽  
Retinopathy Of Prematurity ◽  
Color Doppler ◽  
Color Doppler Imaging ◽  
Doppler Imaging ◽  
Intravitreal Aflibercept ◽  
Retinal Artery ◽  
The Mean ◽  
Type 1 Rop

Purpose To evaluate the blood flow changes of the central retinal artery measured with color Doppler imaging (CDI) in infants receiving intravitreal aflibercept (IVA) for treatment of type 1 retinopathy of prematurity (ROP). Methods Patients with type 1 ROP were assessed prospectively by CDI following IVA. Color Doppler imaging was used to measure the peak systolic velocity, end diastolic velocity (EDV), pulsatility index (PI), and resistivity index (RI) of the central retinal artery (CRA) before IVA injection and 1 hour, 1 week, and 1 month after injection. Results A total of 29 eyes of 15 infants were included in this study. The mean gestational age at birth was 28.62 ± 2.48 weeks and the mean birthweight was 1,198.62 ± 348.99 g. All treated eyes showed complete regression of ROP and peripheral retinal vascularization continued. Measurements of EDV-CRA, RI-CRA, and PI-CRA showed significant changes after IVA treatment. Conclusions This study showed that IVA is an effective treatment for type 1 ROP. After IVA treatment, vascular resistance increases, ocular blood flow decreases, and changes in hemodynamic parameters of CRA may remain for a month. Further studies are needed to evaluate the effect of anti-vascular endothelial growth factor agents on ocular hemodynamics in infants with ROP.

Influence of various mixtures of breathing gases on ocular blood flow velocities obtained by color Doppler imaging

1998 ◽  
Vol 95 (4) ◽  
pp. 225-228 ◽  
Author(s):  
Frank Schüttauf ◽  
Ulrich Cobet ◽  
Albrecht Klemenz ◽  
Albrecht Krause
Keyword(s):  
Blood Flow ◽  
Color Doppler ◽  
Color Doppler Imaging ◽  
Ocular Blood Flow ◽  
Doppler Imaging ◽  
Blood Flow Velocities ◽  
Flow Velocities
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