Kiuchi Y, Hirota A, Takamatsu M, Mishima H, Kaneko K
Department of Ophthalmology, Osaka National Hospital, Japan.
Nippon Ganka Gakkai Zasshi. 2000 Jan;104(1):29-33.
The effect of stellate ganglion block (SGB) on human retinal blood flow was evaluated.
We measured the diameter of the retinal artery and vein, and retinal venous flow rate by laser speckle retinal blood flow meter simultaneously in 11 eyes of 11 normal volunteers.
The reliable data from 9 eyes of 9 person were used for analysis. SGB did not change the blood pressure, heart rate, retinal arterial diameter, or venous diameter. However SGB increased retinal blood velocity significantly from 9.9 +/- 1.6 (mean +/- standard deviation) mm/s to 11.1 +/- 1.5 mm/s (p < 0.01). Intraocular pressure decreased from 12.3 +/- 2.1 (mean +/- standard deviation)mmHg to 9.4 +/- 2.2 mmHg after SGB (p < 0.01). There was no relationship between the change of ocular perfusion pressure and that of retinal venous blood velocity.
SGB increased the retinal venous blood velocity without changing the retinal vessel diameter.
评估星状神经节阻滞（SGB）对人体视网膜血流的影响。
我们使用激光散斑视网膜血流仪同时测量了11名正常志愿者11只眼睛的视网膜动脉和静脉直径以及视网膜静脉血流速度。
来自9名受试者9只眼睛的可靠数据用于分析。SGB并未改变血压、心率、视网膜动脉直径或静脉直径。然而，SGB使视网膜血流速度从9.9±1.6（平均值±标准差）mm/s显著增加至11.1±1.5 mm/s（p<0.01）。SGB后眼压从12.3±2.1（平均值±标准差）mmHg降至9.4±2.2 mmHg（p<0.01）。眼灌注压的变化与视网膜静脉血流速度的变化之间无相关性。
SGB增加了视网膜静脉血流速度，而未改变视网膜血管直径。
