血管扩张的

Objective To investigate the clinical features, causes of blindness and diagnosis of Vogt Koyanagi Harada syndrome Methods The data of 157 patients with VKH syndrome were reviewed and analyzed Patients were carefully examined with slit lamp, ophthalmoscope, three mirror lens, fundus fluorescein angiography, indocyanine green angiography and HLA typing Results Headache was noted in 73 5% of these patients Simultaneous involvement of both eyes occurred in 80 8% of these patients Chroiditis,papilledema and edema of the retina adjacent to the optic nerve were noted in 100% of these patients in the posterior uveitis stage, whereas recurrent granulomatous anterior uveitis (98 4%),"sunset glow" fundus (95 8%) and Dalen Fuchs nodules (71 2%) were the common ocular findings in the recurrent anterior uveitis stage The common causes of blindness were papillitis, exudative retinal detachment and complicated cataract in the posterior uveitis stage, anterior uveal involvement stage and its recurrent stage Poliosis (36 3%) and alopecia (35 0%) were the most common extraocular findings Early irregular patches of fluorescence, followed by localized hyperfluorescent spots were the typical findings of FFA Dilation of choroidal vessels and leakage of ICG from the choroidal vessels were the common ICGA findings The prevalence of HLA DR4 and HLA DRw53 in patients (54 9% and 71 8% respectively) was significantly higher than that in controls (14 7% and 38 2% respectively) Conclusions VKH syndrome is characterized by chroiditis, papillitis or neuroretinitis in the posterior uveitis stage, followed by a generalized uveitis with a typical recurrent granulomatous anterior uveitis Extraocular findings and relevant examinations including FFA, ICGA and HLA typing are helpful to the diagnosis of VKH syndrome

目的探讨Vogt-Koyanagi-Harada综合征患者的临床特征、盲目原因及诊断等有关问题。方法对在1996年1月至2000年12月间就诊资料完整的157例VKH综合征患者进行回顾性分析，并对裂隙灯、眼底镜、三面镜、荧光素眼底血管造影(fundus fluorescein angiography，FFA)、吲哚青绿血管造影(indocyanine green angiography，ICGA)及人类白细胞抗原分型等检查结果进行分析。结果 VKH综合征最常见的前驱症状为头痛(102例，73.5%)，双眼同时患病118例(80.8%)；后葡萄膜炎期眼部主要表现为脉络膜炎、视乳头及附近视网膜水肿(100.0%)；前葡萄膜炎反复发作期眼部表现为复发性肉芽肿性前葡萄膜炎(128例，98.4%)、晚霞状眼底改变(95.8%)及Dalen-Fuchs结节(71.2%)；后葡萄膜炎期、前葡萄膜受累期及前葡萄膜炎反复发作期导致盲目的主要原因分别为视乳头炎、视网膜脱离及并发性白内障；毛发变白(36.3%)及脱发(35.0%)是最常见的眼外表现；炎症活动期FFA典型表现为斑驳状高荧光，ICGA发现脉络膜血管扩张、通透性增高等改变；VKH综合征患者HLA-DR4及HLA-DRw53的阳性率(54.9%及71.8%)显著高于正常对照组(14.7%及38.2%)。结论 VKH综合征患者在后葡萄膜炎期眼部典型表现为双侧脉络膜炎、视乳头炎或神经视网膜炎，随后出现以反复发作的肉芽肿性前葡萄膜炎为特征的全葡萄膜炎。眼外症状及相关的辅助检查包括FFA、ICGA 及HLA分型等有助于VKH综合征的诊断。

Dilation of a blood vessel, as by the action of a nerve or drug.

血管扩张血管的扩张，如由于神经或药品

Since the reduced effective volume is due to extreme vasodilation then a vasoconstrictor can be used and the vasoconstrictor for which there is the most experience is Terlipressin.

由于减少的有效血容量起因于血管扩张，血管收缩剂可以用于治疗此病，有效的血管收缩剂是特利加压素。

Results: B-type ultra-sonic graph showed abnormal blood vessels in hepatic hila. CT or DSA demonstrated intra- and extra-hepatic abnormal ectatic arteries, intrahepatic telangiectasia, cirrhosis and hepatic enlargement.

强化CT及血管成像显示3例患者腹主动脉周围、肝门区及肝内迂曲扩张的动脉血管、肝内弥漫扩张的毛细血管网和肝硬化，2例年轻患者肝脏体积增大。

People often occur in elderly vascular sclerosis, high blood pressure sustained more easily lead to cerebral arteriosclerosis, vessel wall hyalinization appears fat, thus weakening the strength of the vessel wall, together with the blood of the structure of the wall is relatively weak, the middle vascular myocytes less, the lack of external elastic layer developed arterial adventitia easily occurred in the brain artery wall limitations small expansion, the formation of micro-miliary aneurysm.

人到老年血管常会发生硬化，持续的高血压更容易导致脑动脉硬化，血管壁出现脂肪玻璃样变，从而削弱血管壁的强度，加上脑血管壁的结构比较薄弱，血管中层肌细胞少，缺乏外弹力层，动脉外膜不发达，容易造成脑内小动脉壁发生局限性扩张，形成粟粒性微动脉瘤。

When contrast-enhanced CT depicts hypervascularity of the mesentery with vascular dilatation, tortuosity, and wide spacing of the vasa recta, the comb sign is produced.

当增强CT显示血管扩张、迂曲而血管增多的肠系膜和广泛分布的直小血管，产生梳征。

Twelve hours latter,uterine vessels formation was revealed by tannin-Fe lavement solution.Results The uterine vessel formation of rats in the model group showed that varices,tetanic shape,the density of all levels vessel net increased obviously and its twist,serpentine shape decreased markedly,while that in the large,middle dosage Gongning groups displayed absolute contrarily and fit like a glove with the normal control group.The uterine vessel formation of rats in the small dosage Gongning group and indomethacin group also showed the same transformation as it in the model group.

结果 模型组大鼠子宫各级血管扩张增粗，走行僵直，螺旋状和蜿蜒状走行消失或明显减少，血管形成的各级血管网密度增加，分布不均；消炎痛组、宫宁小剂量组子宫血管仍存在较明显的血管腔扩大、走行僵直和血管网密度增加，宫宁大、中剂量组子宫血管构筑的异常改变消失或明显改善。

When contrast-enhanced CT depicts hyperascularity of the mesentery with ascular dilatation, tortuosity, and wide spacing of the asa recta, the comb sign is produced.

当增强CT显示血管扩张、迂曲而血管增多的肠系膜和广泛分布的直小血管，产生梳征。

Result:In 20 cases,there were 18 patients detected VM by MRA.8 patients were found typical sign "caput meduse" and 6 patients were only found the delated draining vein.4 patients showed delated draining vein with medulla vein.12 cases of VM were discovered supratentorial and 6 were undertentorial.

结果：20例静脉畸形磁共振血管造影18例发现异常静脉血管，其中8例具有典型的&水母头&样形态，4例显示扩张的引流静脉和稀少的髓静脉。6例静脉畸形MRA仅显示扩张的引流静脉。12例静脉畸形位于幕上，6例位于幕下。

It can achieve successful dilation in about 60% of branch pulmonary arterial stenoses but the success rate may be lower in other lesions.

对於肺动脉狭窄而言，球囊扩张的成功率大约 60%。但其他血管狭窄扩张率则较低。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。