Decreased retinal blood flow in retinitis pigmentosa.
1995; National Institutes of Health; Volume: 30; Issue: 1 Linguagem: Inglês
Autores
Nuray Akyol, Şahap Kükner, Ülkü Çeliker, H Koyu, Cemal Lüleci,
Tópico(s)Retinopathy of Prematurity Studies
ResumoTo determine alterations in retinal blood flow in retinitis pigmentosa (RP).Case-control study.Ophthalmology department of a university-affiliated hospital in Elazig, Turkey.Ten patients (20 eyes) with typical RP and 22 age-matched volunteer subjects (22 eyes) with no history of ocular or systemic disease.Central retinal artery peak systolic and diastolic blood flow velocity (measured by means of colour Doppler imaging), resistance index and pulsatility index.The mean peak systolic and diastolic flow velocity values were significantly lower in the study group than in the control group (4.96 +/- 1.3 vs. 11.11 +/- 1.5 cm/s [p < 0.00001] and 2.15 +/- 0.4 vs. 3.40 +/- 0.9 cm/s [p < 0.0001] respectively). The mean resistance index value was significantly lower in the study group (0.55 +/- 0.05) than in the control group (0.71 +/- 0.06) (p < 0.0001), as was the mean pulsatility index value (0.94 +/- 0.18 vs. 1.45 +/- 0.36) (p < 0.00001).Decreased retinal blood flow is an important feature of RP.
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