鸟枪弹样脉络膜视网膜病变的视网膜电图描记  

Electroretinographic monitoring in birdshot chorioretinopathy

作　　者：Sobrin L Lam B.L J.L. Davis 陈立军 

机构地区：[1]Bascom Palmer Eye Institute, 900 NW 17th Street, Miami, FL 33136, United States.Dr

出　　处：《世界核心医学期刊文摘（眼科学分册）》2005年第12期8-9,共2页Digest of the World Core Medical Journals:Ophthalmology

摘　　要：PURPOSE: To evaluate electroretinography (ERG) during long-term follow-up in birdshot chorioretinopathy (BCR). DESIGN: Retrospective, comparative interventional case series. METHODS: setting: University subspecialty clinic. patient population: Twenty-three HLA-A29-positive patients with BCR and 40 normal control subjects. intervention procedure: Patients were monitored with ERG approximately annually. Treatment was according to best medical judgment. main outcome measures: Baseline ERG values, vision, and ERG values during observed and treated intervals. RESULTS: Median age of patientswas 52 years, and 19 patientswere untreated at baseline. Eighty-two ERGs were performed. Eighteen patients had more than one ERG; mean follow-up of these patients was 40.2 months ± 31.2, median 23 months. At baseline, several ERG parameters were statistically reduced compared with control subjects when adjusted for age. The combined rod-cone and cone b/a wave ratios did not differ from control subjects (P=.45 and 0.14). Scotopic rod and combined rod-cone b-wave amplitudes were statistically correlated with baseline vision, as were implicit times for the combined rod-cone a-wave, cone a-wave, and cone flicker b-wave. Median visual acuity was 20/25 and did not change during follow-up. Most ERG parameters showed marked worsening during observed intervals. During treated intervals, the ERG declined at a rate consistent with aging. CONCLUSIONS: Many ERG parameters in patients with BCR greatly differ from control subjects, correlate with vision, and worsen during observation. Selected patients may show improvement in ERG with treatment. The cone b-wave flicker implicit time was most often associated with clinically important measures such as vision, duration of symptoms, and deviation from normalcy.PURPOSE: To evaluate electroretinography (ERG) during long-term follow-up in birdshot chorioretinopathy (BCR). DESIGN: Retrospective, comparative interventional case series. METHODS: setting: University subspecialty clinic. patient population: Twenty-three HLA-A29-positive patients with BCR and 40 normal control subjects. intervention procedure: Patients were monitored with ERG approximately annually. Treatment was according to best medical judgment. main outcome measures: Baseline ERG values, vision, and ERG values during observed and treated intervals. RESULTS: Median age of patientswas 52 years, and 19 patientswere untreated at baseline. Eighty-two ERGs were performed. Eighteen patients had more than one ERG; mean follow-up of these patients was 40.2 months ± 31.2, median 23 months. At baseline, several ERG parameters were statistically reduced compared with control subjects when adjusted for age. The combined rod-cone and cone b/a wave ratios did not differ from control subjects (P=.45 and 0.14). Scotopic rod and combined rod-cone b-wave amplitudes were statistically correlated with baseline vision, as were implicit times for the combined rod-cone a-wave, cone a-wave, and cone flicker b-wave. Median visual acuity was 20/25 and did not change during follow-up. Most ERG parameters showed marked worsening during observed intervals. During treated intervals, the ERG declined at a rate consistent with aging. CONCLUSIONS: Many ERG parameters in patients with BCR greatly differ from control subjects, correlate with vision, and worsen during observation. Selected patients may show improvement in ERG with treatment. The cone b-wave flicker implicit time was most often associated with clinically important measures such as vision, duration of symptoms, and deviation from normalcy.

关 键 词：视网膜电图 视杆细胞 视锥细胞 症状持续时间 附属医院 最佳方案 病例研究 暗适应 

分 类 号：R774.1[医药卫生—眼科]