背景:我们研究了乙胺丁醇治疗引起的乳头周围视网膜神经纤维层(p-RNFL)和神经节细胞内丛状层(GCIPL)的结构损伤模式。
方法:选取浙江省中西医结合医院接受乙胺丁醇治疗的患者64例。十四(14)表现出视觉功能障碍(异常组),其余50例患者均无视觉功能障碍(亚临床组)。p-RNFL的厚度,使用Cirrus-HD光学相干断层扫描(Cirrus-HDOCT,Cirrus高清光学相干断层扫描),与60个健康的人相比,年龄匹配的控制。
结果:亚临床组和对照组的p-RNFL厚度相似。与对照组相比,异常组的p-RNFL厚度在下象限和上象限显着增加(GEE,P=0.040,P=0.010)。与亚临床组相比,异常组的下象限p-RNFL厚度增加(GEE,P=0.047)。与对照组相比,亚临床组中鼻下段和下段的GCIPL厚度显着下降(GEE,P=0.028,P=0.047)。GCIPL厚度的平均值和最小值,鼻上的厚度,劣等,下颞叶,与对照组相比,异常组的超颞叶和上级部门显着减少(GEE,分别为P=0.016,P=0.001,P=0.028,P=0.010,P=0.012,P=0.015,P=0.010)。异常组的立方体平均黄斑厚度(CAMT)明显薄于对照组(GEE,P=0.027)。
结论:使用Cirrus-HDOCT进行的GCIPL测量检测到乙胺丁醇治疗后的视网膜神经节细胞层丢失,在视觉功能障碍发生之前。
BACKGROUND: We investigated structural injury patterns in the peripapillary retinal nerve fibre layer (p-RNFL) and ganglion cell inner plexiform layer (GCIPL) caused by ethambutol treatment.
METHODS: Sixty-four patients undergoing ethambutol treatment at Zhejiang Chinese Medicine and Western Medicine Integrated Hospital were recruited. Fourteen (14) exhibited visual dysfunction (abnormal group), and the remaining 50 had no visual dysfunction (subclinical group). The thickness of the p-RNFL, total macular retina layer and GCIPL were measured using Cirrus-HD Optical coherence tomography (Cirrus-HD OCT, Cirrus high-definition optical coherence tomography), and compared with 60 healthy, age-matched controls.
RESULTS: The p-RNFL thickness was similar in both subclinical and control groups. When compared with the control group, p-RNFL thickness in the abnormal group was significantly increased in the inferior and superior quadrants (GEE, P = 0.040, P = 0.010 respectively). In contrast with the subclinical group, p-RNFL thickness in the inferior quadrant was increased in the abnormal group (GEE, P = 0.047). The GCIPL thickness in the inferonasal and inferior sectors was significantly deceased in the subclinical group when compared with controls (GEE, P = 0.028, P = 0.047, respectively). The average and minimum value of GCIPL thickness, and thickness in the superonasal, inferior, inferotemporal, superotemporal and superior sectors were significantly decreased in the abnormal group when compared with controls (GEE, P = 0.016, P = 0.001, P = 0.028, P = 0.010, P = 0.012, P = 0.015, P = 0.010, respectively). The cube average macular thickness (CAMT) in the abnormal group was significantly thinner than controls (GEE, P = 0.027).
CONCLUSIONS: GCIPL measurements using Cirrus-HD OCT detected retinal ganglion cell layer loss following ethambutol treatment, before visual dysfunction occurred.