Sharma Tarun, Krishnan Tandava, Gopal Lingam, Nagpal Amit, Khetan Vikas, Rishi Pukhraj
Shri Bhagwan Mahavir Vitreoretinal Services, Tamil Nadu, India.
Ophthalmic Surg Lasers Imaging. 2011 Sep-Oct;42(5):360-8. doi: 10.3928/15428877-20110707-01. Epub 2011 Jul 14.
To report the outcome of treating circumscribed choroidal hemangioma (CCH) using transpupillary thermotherapy (TTT).
An infrared diode laser was used at 810 nm with a median spot size of 2.5 mm, power of 550 mW, and duration of 6.5 minutes; the median number of sittings was two. TTT spared the center of the macula when CCH involved the fovea.
The mean age was 36 years (range: 13 to 63 years). CCH was subfoveal in 37.5% of the eyes and exudative retinal detachment was evident in all eyes. The tumor dimensions included thickness (median: 4.05 mm; range: 2.2 to 9.1 mm), horizontal diameter (median: 11 mm; range: 6 to 17.7 mm), and vertical diameter (median: 9.4 mm; range: 5.9 to 15.8 mm). After TTT, visual acuity improved in 44%, was maintained in 37%, and worsened in 19% of eyes. Likewise, tumor regression was achieved in thickness, vertical, and horizontal diameter in proportion of 20%, 15%, and 11%, respectively. The exudative retinal detachment resolved in 94% of eyes at the last follow-up. The median follow-up was 9.5 months.
Macula-sparing TTT was effective in causing regression of CCH and resorption of associated exudative retinal detachment, and helped in preserving or improving vision in 81% of treated eyes.
报告经瞳孔温热疗法（TTT）治疗局限性脉络膜血管瘤（CCH）的结果。
使用波长810nm的红外二极管激光，光斑大小中位数为2.5mm，功率550mW，持续时间6.5分钟；治疗次数中位数为2次。当CCH累及黄斑中心凹时，TTT避开黄斑中心。
平均年龄36岁（范围：13至63岁）。37.5%的患眼CCH位于黄斑中心凹下，所有患眼均有明显的渗出性视网膜脱离。肿瘤大小包括厚度（中位数：4.05mm；范围：2.2至9.1mm）、水平直径（中位数：11mm；范围：6至17.7mm）和垂直直径（中位数：9.4mm；范围：5.9至15.8mm）。TTT治疗后，44%的患眼视力提高，37%的患眼视力维持，19%的患眼视力下降。同样，肿瘤厚度、垂直直径和水平直径的缩小比例分别为20%、15%和11%。在最后一次随访时，94%的患眼渗出性视网膜脱离消退。中位随访时间为9.5个月。
保留黄斑的TTT可有效使CCH缩小并使相关的渗出性视网膜脱离吸收，有助于81%的治疗患眼保留或提高视力。
