Indocyanine green enhanced transpupillary thermotherapy of circumscribed choroidal haemangioma
作者:A Kamal、A R Watts、I G Rennie
DOI:10.1038/eye.2000.187
日期:2000.9
Purpose To investigate the effect of indocyanine green in enhancing the effect of diode laser for treatment of circumscribed choroidal haemangioma. Methods Intravenous indocyanine green was used to enhance uptake of heat energy during transpupillary diode thermotherapy of circumscribed choroidal haemangioma. Results In a series of 6 patients treated in this manner, response to treatment was much improved compared with results without the use of indocyanine green. All patients retained the same or better visual acuity after treatment, and 67% of eyes improved visual acuity by more than 2 lines on Snellen testing. Ultrasonographic and angiographic evidence of improvement was seen in all patients. Treatment complications were minimal, comprising transient worsening of preexisting cystoid macular oedema in one case, and a small macular branch vein occlusion in the retina overlying the treated area. Conclusions The use of indocyanine green as a contrast medium during transpupillary thermotherapy allows consistent uptake of diode laser energy, and shortens the duration of laser burn required. It is a cost-effective, easily performed outpatient procedure, with lower morbidity than other treatment modalities.
目的 研究吲哚青绿在增强二极管激光治疗限局性脉络膜血管瘤效果中的作用。方法 使用静脉注射吲哚青绿,以增强在限局性脉络膜血管瘤的瞳孔透过二极管热疗过程中热能的吸收。结果 在以这种方式治疗的6名患者中,与未使用吲哚青绿的结果相比,治疗反应显著改善。所有患者在治疗后视觉敏锐度保持不变或有所提高,67%的眼睛在Snellen测试中视觉敏锐度提高超过2行。所有患者均观察到超声波和血管造影证据显示改善。治疗并发症很少,仅包括1例已有囊性黄斑水肿的暂时恶化,以及在治疗区域上方视网膜的小黄斑分支静脉阻塞。结论 在瞳孔透过热疗中使用吲哚青绿作为对比剂,可确保二极管激光能量的有效吸收,缩短所需的激光烧灼时间。这是一种成本效益高、易于进行的门诊程序,其发病率低于其他治疗方式。