west china medical publishers
Keyword
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Keyword "脉络膜新生血管" 135 results
  • 抗血管内皮生长因子单克隆抗体Bevacizumab基础和临床研究现状

    眼部新生血管性及渗出性疾病与血管内皮生长因子(VEGF)关系密切,抗VEGF药 物成为治疗此类疾病的突破点。人源化全长抗VEGF抗体Bevacizumab (Avastin) 有2个VEGF 结合位点,能够与所有具有活性的VEGF结合,具有生物相容性好,价格低,玻璃体内半衰期较长等特点。采用该药玻璃体腔注射,是治疗老年性黄斑变性、糖尿病视网膜病变、视网膜 血管阻塞性疾病、黄斑囊样水肿等多种眼部新生血管性及渗出性疾病的一种安全、有效方式 ,但其长期效果和安全性有待多中心研究进一步证实。 (中华眼底病杂志,2008,24:227-231)

    Release date:2016-09-02 05:46 Export PDF Favorites Scan
  • The progress pattern and natural courses of myopic macularpathy

    Myopic macularpathy is the main cause of the decline of visual function in high myopia, which including tigroid fundus, lacquer cracks, diffuse retinal choroid atrophy, plaque retinal choroid atrophy, choroidal neovascularization (CNV), Fuchs spot and posterior staphyloma. The tigroid fundus is the initial myopic retinopathy. The lacquer cracks is a special lesion in the posterior pole of high myopia. When the lacquer cracksen enlarge or lacquer cracks progress to plaque retinal choroid atrophy should be paid to monitoring the occurrence of CNV. Myopic macularpathy progression include two mode. One is from tigroid fundus——lacquer cracks——plaque retinal choroid atrophy——CNV to macular atrophy. And the other is from tigroid fundus——diffuse retinal choroid atrophy——atrophy enlarge to diffuse retinal choroid atrophy with plaque retinal choroid atrophy or plaque retinal choroid atrophy occurence on the border of posterior staphyloma. Understanding the progression patterns and natural course of these lesions will help the clinic to further understand the course of high myoipa.

    Release date:2018-09-18 03:28 Export PDF Favorites Scan
  • Transpupillary thermal therapy for age-related macular degeneration accompanied with subfoveal choroidal neovascularization

    Objective To investigate the therapeutic efficacy of transpupillary thermal therapy (TTT) for age-related macular degeneration (AMD) accompanied with subfoveal choroidal neovascularization (CNV). Methods Fifty-one eyes of 47 patients whose illness had been diagnosed as AMD by fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) were treated with diode 810 laser. There are 42 eyes of 39 patients had occult CNV and 9 eyes of 8 patients had classic CNV, and the average visual acuity in their fist diagnosis was 0.12. According to the focus size, the diameters of beam spot varied from 0.8, 1.2, 2.0, and 3.0 mm; and the power was 120, 160, 260 and 360mW correspondingly, with the duration of 60 seconds. The follow-up examination was performed once a month after the treatment, and repetitious treatment would be taken once to thrice if necessary. The follow-up period was 3~33 months with the mean of 10 months. Visual acuity, haemorrhage in ocular fundus, absorption of exudation, and the closure of CNV were examined in the follow-up examination. Results No immediate decrement of visual acuity or any other discomforts were found in all of the treated eyes soon after the treatment. The average visual acuity of 51 eyes was 0.16 in the last diagnosis, which remained no change in 68.62%; increased in 23.53% and decreased in 7.84% compared with that in the first diagnosis. The results of FFA and ICCG demonstrated that at the 3rd months after the treatment, the closure rate was 42.86% in occult CNV and 22.22% in classic CNV; and at the 6th month, the closure rate was 73.81% in occult CNV and 66.67% in classic CNV. The results of ophthalmoscopy showed that at the 3rd month after the treatment, partial or complete absorption of hemorrhage and/or exudates with various thickness of organized scarring tissue was found in 42 eyes with occult CNV; decrement of hemorrhage and exudates was observed in 7 out of 9 eyes with classic CNV; and new hemorrhage occurred in 1 eye. At the 6th month, in 27 eyes with occult CNV, new hemorrhage occurred in 3 including 2 eyes with occult CNV, new hemorrhage occurred in 3 including 2 eyes with faster absorption and remaining unchanged for 12 months; in 5 eyes with classic C NV, new hemorrhage occurred in 2, which was absorbed after treated again and remained stable in the 16-month followed-up. In 19 eyes with occult CNV which had been followed up for more than 6 months, hemorrhage disappeared in 5 and new hemorrhage occurred in 5. In the followed-up over 6 months, new hemorrhage occurred in 8 eyes with the recurrent rate of 15.6%. Conclusion TTT is effective for AMD with either classic or occult CNV. In the long-term followed-up, CNV recurs in 15.6% of the treated eyes which may be improved after the further treatment. (Chin J Ocul Fundus Dis,2004,20:280-284)

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
  • 炎症与脉络膜新生血管

    Release date:2016-09-02 05:48 Export PDF Favorites Scan
  • 色素上皮衍生因子mRNA和蛋白在小鼠视网膜和小鼠脉络膜新生血管组织中的表达

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
  • 非老年性黄斑变性患者脉络膜新生血管的治疗现状

    Release date:2016-09-02 05:48 Export PDF Favorites Scan
  • 老年性黄斑变性脉络膜新生血管的药物治疗研究进展

    老年黄斑变性(AMD)是目前老年人主要的致盲眼病之一,主要眼底特征为黄斑区地图状萎缩、脉络膜新生血管(CNV)、视网膜色素上皮(RPE)脱离,其中CNV是危害视功能的主要病理基础。由于其发病原因及机制不清,尚无有效的治疗方法。围绕有关AMD的CNV药物治疗,对皮质类固醇、抗血管内皮生长因子、抗氧化剂、基质金属蛋白酶抑制剂、脱氧氟尿嘧啶核苷等药物的实验和临床研究进展综述如下. (中华眼底病杂志,2004,20:331-334)

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
  • 玻璃体腔注射抗血管内皮生长因子单克隆抗体Ranibizumab治疗脉络膜新生血管疗效观察

    Release date:2016-09-02 05:46 Export PDF Favorites Scan
  • Baseline characteristics and visual outcomes after two years follow-up of exudative age-related macular degeneration patients treated with ranibizumb

    Objective To observe the baseline characteristics and visual outcomes after two years follow-up of exudative age-related macular degeneration (AMD) patients treated with ranibizumb. Methods Forty-four eyes of 44 patients with exudative AMD were enrolled into this retrospective study, 19 were men and 25 were women. The mean age was 78 years (range 64 – 92 years). All patients were underwent best corrected visual acuity (BCVA, Early Treatment of Diabetic Retinopathy Study), fundus color photography, fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA) and optical coherence tomography (OCT). The mean BCVA was (50.36±14.43) letters, the mean central foveal thickness (CFT) was (291.95±82.19) μm, and the fluorescence leakage area of choroidal neovascularization (CNV) was (7.61±5.84) mm2. All patients received three initial intravitreous injection of ranibizumb (IVR) and were retreated with monthly IVR when needed. The mean follow up time was 25.6 months (range 24 – 29 months). On 1, 2, 3, 6, 12, 18 and 24 months after treatment, BCVA and OCT were repeated. On 3, 6, 12, 18 and 24 months after treatment, FFA and ICGA were repeated. The change of BCVA, CFT and fluorescence leakage area of CNV were observed. The association of baseline characteristics and two year visual outcomes were analyzed. Results On 1, 2, 3, 6, 12, 18 and 24 months after treatment, the BCVA were improved significantly (t= −1.89, −3.51, −4.61, −4.04, −5.77, −4.69;P<0.05), the CFT were decreased significantly (t=1.51, 2.30, 3.40, 3.28, 3.54, 3.88, 3.73;P<0.05). On 3, 6, 12, 18 and 24 months after treatment, the fluorescence leakage area of CNV were reduced significantly (t=2.12, 2.90, 3.51, 4.12, 4.06;P<0.05). The lower baseline BCVA, the more improved after treatment. The BCVA improvement degree has a negative relationship with baseline BCVA and fluorescence leakage area of CNV (r=0.505, −0.550;P<0.05), but no correlation with baseline CFT (r=0.210,P>0.05). Conclusion Two year visual outcomes of exudative AMD patients treated with ranibizumb is negative correlated with baseline BCVA and fluorescence leakage area of CNV, but not correlated with baseline CFT.

    Release date: Export PDF Favorites Scan
  • Multimodal imaging to distinguish choroidal neovascularization from macular inflammation lesions in multifocal choroiditis

    Objective To observe the multimodal image features of inflammatory lesions and choroidal neovascularization (CNV) in multifocal choroiditis (MFC). MethodsA retrospective clinical analysis. A total of 90 eyes of 46 patients with MFC diagnosed in the Department of Ophthalmology of Yunnan University Affiliated Hospital from May 2017 to April 2021 were included in the study. Among them, there were 21 males and 25 females; the average age was 38.30±8.97 years old. Twenty-nine cases of MFC were diagnosed in the past, and they visited the doctor again due to new symptoms; 17 cases without a clear past medical history were the first visits. All eyes underwent color fundus photography, fluorescein fundus angiography (FFA), optical coherence tomography (OCT), and OCT angiography (OCTA). With reference to the literature and the results of multimodal fundus imaging examinations, MFC lesions were divided into active CNV lesions, inactive CNV lesions, active inflammatory lesions, and inactive inflammatory lesions, with 31 (34.4%, 31/90), 12 (13.3%, 12/90), 26 (28.9%, 26/90), 90 (100.0%, 90/90) eyes. Nineteen eyes were treated with anti-vascular endothelial growth factor drugs. To summarize and analyze the manifestations of inflammatory lesions and CNV lesions in different imaging examinations. The Wilcoxon rank test was used to compare the detection rate of CNV lesions between FFA and OCTA. ResultsIn eyes with active inflammatory lesions and active CNV lesions, yellow-white lesions, retinal hemorrhage and exudation were seen on fundus color photography; FFA examination showed fluorescein leakage in the lesions; OCT examination showed retinal pigment epithelium (RPE) layer in the lesions was uplifted, the boundary was unclear, combined with subretinal and intraretinal fluid; OCTA examination showed that there was no blood flow signal in each layer of vascular tissue in active inflammatory lesions, and blood flow signals were seen in active CNV lesions. In the eyes of inactive inflammatory lesions and inactive CNV lesions, the fundus color photography showed that the lesions had clear boundaries without bleeding or exudation; FFA examination, the lesions were fluorescently stained, and there was no fluorescein leakage; OCT examination, inactive CNV lesions manifested as raised lesions with clear boundaries, and inactive inflammation manifested as scars formed by mild RPE hyperplasia or depressions in outer structures formed by atrophy; OCTA examination, inactive inflammatory lesions showed patchy loss of blood flow signal or penetrating blood flow signal below, blood flow signal can be seen in inactive CNV lesions. ConclusionMFC active inflammatory lesions and active CNV lesions are often accompanied by retinal hemorrhage and exudation; FFA shows fluorescein leakage; OCT shows that the boundary of raised lesions is unclear; OCTA can identify the nature of CNV or inflammatory lesions.

    Release date:2022-06-16 09:26 Export PDF Favorites Scan
14 pages Previous 1 2 3 ... 14 Next

Format

Content