Hay S R, Madonna R J
VA Hudson Valley Health Care System, Castle Point, New York 12511, USA.
Optometry. 2000 Nov;71(11):715-21.
Subretinal hemorrhage (SRH) can arise from any number of underlying etiologies and can stem from either the choroidal and/or retinal circulation. It is most commonly associated with age-related macular degeneration (ARMD), in which a choroidal neovascular membrane is the usual source of bleeding. Vision loss resulting from SRH can be secondary to toxic, tractional, and barrier effects from persistent blood. To minimize long-term visual loss from SRH, several treatment modalities have evolved over the past few years. The most-recent therapeutic techniques involve treatment with the thrombolytic agent tissue plasminogen activator The value of surgical removal of subretinal hemorrhage to improve visual outcome remains unsubstantiated, as definitive studies have not been completed.
A 73-year-old man manifested a 1-day history of decreased vision in his right eye. A large submacular hemorrhage had developed as a result of exudative age-related macular degeneration. Treatment included intravitreal injection of tissue plasminogen activator, followed by intravitreal injection of SF6 gas, which displaced the subretinal hemorrhage away from the fovea and resulted in clearance of the submacular blood. This case describes a new treatment for submacular hemorrhage secondary to ARMD.
Subretinal hemorrhage secondary to ARMD can cause significant permanent visual loss. A thorough understanding of the pathogenesis of vision loss and the treatment options available are essential in successful management of these patients. Intravitreal injection of tissue plasminogen activator and gas bubble may provide an effective treatment for subretinal hemorrhage in age-related macular degeneration.
视网膜下出血(SRH)可由多种潜在病因引起,可源于脉络膜和/或视网膜循环。它最常与年龄相关性黄斑变性(ARMD)相关,其中脉络膜新生血管膜是常见的出血来源。SRH导致的视力丧失可能继发于持续性血液的毒性、牵引性和屏障效应。为了尽量减少SRH导致的长期视力丧失,在过去几年中已经发展出了几种治疗方式。最新的治疗技术包括使用溶栓剂组织纤溶酶原激活剂进行治疗。由于尚未完成确定性研究,手术切除视网膜下出血以改善视力结果的价值仍未得到证实。
一名73岁男性右眼视力下降1天。因渗出性年龄相关性黄斑变性出现了大量黄斑下出血。治疗包括玻璃体内注射组织纤溶酶原激活剂,随后玻璃体内注射SF6气体,该气体将视网膜下出血从黄斑中心凹移开,导致黄斑下血液清除。本病例描述了一种治疗ARMD继发性黄斑下出血的新方法。
ARMD继发性视网膜下出血可导致严重的永久性视力丧失。全面了解视力丧失的发病机制和可用的治疗选择对于成功管理这些患者至关重要。玻璃体内注射组织纤溶酶原激活剂和气态泡可能为年龄相关性黄斑变性中的视网膜下出血提供有效的治疗方法。