Alp Mehmet Numan, Aksay Sevinç, Tola Muharrem, Ataseven Musa, Olçer Tülay, Kural Gülcan
Department of Ophthalmology, Numune Training and Research Hospital, Ankara, Turkey.
Acta Ophthalmol Scand. 2006 Apr;84(2):242-5. doi: 10.1111/j.1600-0420.2005.00572.x.
To evaluate the early and late alterations in orbital blood flow parameters in eyes with severe eyelid swelling due to blunt trauma by using colour Doppler ultrasonography (CDU).
Blood flow parameters in the ophthalmic artery (OA), central retinal artery (CRA), short posterior ciliary arteries (SPCAs) and central retinal vein (CRV) were examined by CDU in 62 eyes of 31 patients with unilateral blunt trauma and in 32 eyes of 32 normal subjects. Patients were examined within the first 5 days and at least 1 month after trauma. The traumatized eyes of patients were designated 'trauma eyes', non-traumatized fellow eyes were designated 'fellow eyes', and randomly chosen eyes of control subjects 'control eyes'.
In the early phase, peak systolic velocity (PSV) and end diastolic velocity (EDV) in the OA in trauma eyes were statistically significantly higher than in both fellow eyes and control eyes: the p-values for the differences in PSV and EDV between trauma eyes and fellow eyes were p < 0.001 and p = 0.001, respectively, while the p-values for the differences in PSV and EDV between trauma eyes and control eyes were p = 0.002 and p = 0.019, respectively). No other blood flow parameters obtained at the first examination in all groups were statistically different. In the late phase, PSV in the OA in trauma eyes was found to be higher than that in both fellow eyes and control eyes, but the difference was significant only between trauma eyes and fellow eyes (p = 0.028). End diastolic velocity in the CRA was statistically significantly lower in fellow eyes than in control eyes (p = 0.046). No other blood flow parameters in any vessels examined in fellow eyes and control eyes were statistically significantly different during the study period.
Blood flow velocities detected by CDU are increased in the OA in eyes with eyelid oedema due to blunt trauma and some of these changes may persist for up to 1 month. This effect seems to be a consequence of trauma-induced hyperaemia in the orbital soft tissues rather than an expression of traumatic choroidal vasculopathy.
应用彩色多普勒超声（CDU）评估因钝挫伤导致严重眼睑肿胀的眼部眼眶血流参数的早期和晚期变化。
采用CDU检查31例单侧钝挫伤患者的62只眼以及32名正常受试者的32只眼的眼动脉（OA）、视网膜中央动脉（CRA）、睫状后短动脉（SPCAs）和视网膜中央静脉（CRV）的血流参数。患者在受伤后的前5天内及至少1个月后接受检查。将患者受伤的眼睛称为“伤眼”，未受伤的对侧眼称为“健眼”，对照组受试者随机选取的眼睛称为“对照眼”。
在早期，伤眼OA的收缩期峰值流速（PSV）和舒张末期流速（EDV）在统计学上显著高于健眼和对照眼：伤眼与健眼之间PSV和EDV差异的p值分别为p < 0.001和p = 0.001，而伤眼与对照眼之间PSV和EDV差异的p值分别为p = 0.002和p = 0.019）。所有组首次检查时获得的其他血流参数在统计学上无差异。在晚期，发现伤眼OA的PSV高于健眼和对照眼，但仅伤眼与健眼之间的差异具有统计学意义（p = 0.028）。健眼CRA的舒张末期流速在统计学上显著低于对照眼（p = 0.046）。在研究期间，健眼和对照眼检查的任何血管中的其他血流参数在统计学上均无显著差异。
CDU检测到的因钝挫伤导致眼睑水肿的眼部OA血流速度增加，其中一些变化可能持续长达1个月。这种效应似乎是眼眶软组织创伤性充血的结果，而非创伤性脉络膜血管病变的表现。
