laser photocoagulation

激光光凝
  • 文章类型: Journal Article
    这项回顾性队列研究介绍了一组因早产儿视网膜病变接受激光治疗并出现延迟性眼前节并发症的患者。
    回顾了1988年至2020年在我们机构接受激光光凝治疗早产儿视网膜病变的婴儿的图表。提取的数据包括人口统计,治疗和临床检查结果,和那些视力上的人,外科手术,和睫状肌麻痹屈光。纳入标准记录了随访期间的眼前节变化。排除标准是在眼前节并发症出现之前的任何先前眼内手术或炎症。早产儿视网膜病变的照射为激光光凝,主要结局为眼前节并发症,视敏度,和睫状肌麻痹屈光。
    共回顾了183张图表。9例患者的16只眼(4.4%)符合纳入标准。激光治疗后的平均随访期为15.9年(范围10年-26年)。出生时的平均胎龄为24.6周(范围为23周-27周),首次临床记录眼前节并发症的平均年龄为8.7岁(范围为1岁-25岁).并发症包括白内障(n=5例/8只眼)和青光眼(n=3例/5只眼),最常见的并发症是带状角膜病变(n=9例/15只眼)。由于眼前节并发症,总共16只眼睛中有5只接受了外科手术。治疗后,在五只接受治疗的眼睛中,有四只的视力恢复到其基线值,和改进,但没有达到它的基线值,五只被治疗的眼睛中就有一只。所有患者在随访期间均出现进行性高度近视。
    激光光凝术治疗早产儿视网膜病变后的前段并发症可能在以后的生活中发展。它们影响患者的视力和生活质量,可能需要治疗。
    UNASSIGNED: This retrospective cohort study presents a group of patients who underwent laser therapy for retinopathy of prematurity and presented with delayed anterior segment complications.
    UNASSIGNED: The charts of infants treated with laser photocoagulation for retinopathy of prematurity at our institution between 1988 and 2020 were reviewed. The data extracted included demographics, treatment and clinical examination findings, and those on visual acuity, surgical procedures, and cycloplegic refraction. The inclusion criteria were documented anterior segment changes during the follow-up period. The exclusion criteria were any prior intraocular surgery or inflammation before signs of anterior segment complications developed. The exposure was laser photocoagulation for retinopathy of prematurity and the main outcomes were anterior segment complications, visual acuity, and cycloplegic refraction.
    UNASSIGNED: A total of 183 charts were reviewed. Sixteen eyes of nine patients (4.4%) met the inclusion criteria. The mean follow-up period after laser treatment was 15.9 years (range 10 years-26 years). The mean gestational age at birth was 24.6 weeks (range 23 weeks-27 weeks), and the mean age at first clinical documentation of anterior segment complications was 8.7 years (range 1 years-25 years). The complications included cataract (n = five patients/eight eyes) and glaucoma (n = three patients/five eyes), with the most frequent complication being band keratopathy (n = nine patients/15 eyes). A total of five out of 16 eyes underwent surgical procedures due to anterior segment complications. After treatment, visual acuity improved back to its baseline value in four out of five of the treated eyes, and improved, but not to its baseline value, in one out of five of the treated eyes. All the patients developed progressive high myopia over the follow-up period.
    UNASSIGNED: Anterior segment complications after laser photocoagulation for retinopathy of prematurity may develop later in life. They affect patients\' visual acuity and quality of life and may require treatment.
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  • 文章类型: Journal Article
    目的:本研究旨在评估治疗效果,解剖学结果,1年随访时,激光光凝(LPC)和玻璃体腔注射雷珠单抗(IVR)治疗I型早产儿视网膜病变(ROP)的屈光结果.
    方法:这是一项回顾性研究,研究了2019年1月至2021年12月在马来西亚三家提供儿科眼科服务的医院使用LPC或IVR治疗I型ROP和侵袭性ROP(A-ROP)。有关胎龄的信息,出生体重,ROP区和阶段,并收集了潜在的合并症。评估疗效的参数包括达到完全消退所需的时间。回归率,和再激活率。在调整年龄1岁时评估解剖学和屈光结果。
    结果:这项研究包括46名婴儿的92只眼。其中,42只眼睛接受LPC作为初始治疗,而50只眼睛接受了IVR。与LPC(40%)相比,IVR治疗的心血管疾病婴儿比例更高(66.7%)(p<0.05)。然而,胎龄没有显著差异,出生体重,呼吸窘迫综合征,脓毒症,或脑室内出血在两个治疗组之间(p>0.05)。用LPC治疗的婴儿比IVR治疗的婴儿有更高的消退率,但他们的近视程度也明显更高,最佳矫正视力(BCVA)较差.相反,与接受LPC治疗的婴儿相比,接受IVR治疗的婴儿的再激活率明显更高.Logistic回归分析显示,胎龄与胎龄之间无显著关联,出生体重,加上疾病,1区ROP,以及ROP再激活时初始治疗的选择。
    结论:LPC和IVR均可有效治疗婴儿I型ROP,IVR产生优越的解剖和屈光结果,LPC提供较低的再激活率。了解患者的个体特征对于治疗选择至关重要。
    OBJECTIVE: This study aimed to evaluate the treatment efficacy, anatomical outcomes, and refractive outcomes of laser photocoagulation (LPC) and intravitreal ranibizumab (IVR) in the treatment of type I retinopathy of prematurity (ROP) at one-year follow-up.
    METHODS: This is a retrospective study on the treatment of type I ROP and aggressive ROP (A-ROP) using LPC or IVR in three Malaysian hospitals providing pediatric ophthalmology services from January 2019 to December 2021. Information on gestational age, birth weight, ROP zone and stage, and underlying comorbidities was collected. Parameters for evaluating treatment efficacy include the time taken to achieve complete regression, the regression rate, and the reactivation rate. The anatomical and refractive outcomes were evaluated at one year of adjusted age.
    RESULTS: This study included 92 eyes from 46 infants. Of these, 42 eyes received LPC as the initial treatment, while 50 eyes underwent IVR. A higher percentage of infants with cardiovascular disease were treated with IVR (66.7%) compared to LPC (40%) (p<0.05). However, there were no significant differences in gestational age, birth weight, respiratory distress syndrome, sepsis, or intraventricular hemorrhage between the two treatment groups (p>0.05). Infants treated with LPC had a higher regression rate than those treated with IVR, but they were also significantly more myopic and had worse best-corrected visual acuity (BCVA). Conversely, infants treated with IVR experienced a significantly higher reactivation rate compared to those treated with LPC. Logistic regression analysis showed no significant associations between gestational age, birth weight, plus disease, zone 1 ROP, and the choice of initial treatment with the reactivation of ROP.
    CONCLUSIONS: Both LPC and IVR effectively treat type I ROP in infants, with IVR yielding superior anatomical and refractive outcomes and LPC offering a lower reactivation rate. Understanding individual patient characteristics is crucial for treatment selection.
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  • 文章类型: Journal Article
    目的:比较玻璃体内贝伐单抗(IVB)单药治疗和玻璃体内贝伐单抗联合激光光凝(LPC)在同一疗程中应用于侵袭性早产儿视网膜病变(A-ROP)的结果。
    方法:本研究包括37例诊断为A-ROP并接受治疗的患者的67只眼。第一组包括使用抗血管内皮生长因子剂注射液单药治疗A-ROP的49只眼。第二组由接受注射治疗和LPC治疗的18只眼组成。调查两组患者的临床表现,并对其治疗结果进行比较。
    结果:在第一组49只眼中的19只(38%)中观察到复发,但在第二组中没有任何病例复发。虽然只有IVB应用于8例复发病例,11例患者采用LPC和IVB联合治疗。在接受IVB单一疗法作为复发治疗的8例病例中的2例以及接受LPC和IVB治疗的11例病例中的3例中检测到第二次复发。两组治疗结果差异无统计学意义(P=0.181)。
    结论:我们认为在A-ROP病例中同时应用LPC和IVB联合治疗是一种有效的方法。特别是对患者参加随访预约的能力存在担忧的情况。
    OBJECTIVE: To compare the results of intravitreal bevacizumab (IVB) monotherapy and combined intravitreal bevacizumab and laser photocoagulation (LPC) therapies applied in the same session to patients with aggressive retinopathy of prematurity (A-ROP) in our clinic.
    METHODS: The study included 67 eyes of 37 patients diagnosed with A-ROP and treated. Forty-nine eyes treated with anti-vascular endothelial growth factor agent injection monotherapy for A-ROP treatment were included in the first group. The second group consisted of 18 eyes that received injection therapy and LPC treatment. The clinical findings of the two groups were investigated, and their treatment results were compared.
    RESULTS: Recurrence was observed in 19 of the 49 (38%) eyes in the first group, but there was no recurrence in any of the cases in the second group. While only IVB was applied to eight cases with recurrence, the combination of LPC and IVB treatment was applied to 11 cases. A second recurrence was detected in two of the eight cases that had received IVB monotherapy as a treatment for recurrence and in three of the 11 cases that had received LPC and IVB. The treatment outcomes of the two groups did not statistically significantly differ (P = 0.181).
    CONCLUSIONS: We consider that the combined simultaneous LPC and IVB treatment we applied in A-ROP cases is an effective approach, particularly for cases where there are concerns about the patient\'s ability to attend follow-up appointments.
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  • 文章类型: Journal Article
    探讨雷珠单抗联合激光光凝(LP)治疗糖尿病性黄斑水肿(DME)的临床疗效。
    我们回顾性分析了2021年5月至2023年3月南昌大学附属眼科医院收治的118例DME患者的临床资料。其中,38例患者单独接受LP(激光组),39例患者单独接受雷珠单抗(雷珠单抗组),41例患者接受LP联合雷珠单抗(联合组).改善黄斑水肿(ME),视敏度,并对两组并发症进行比较。
    ME回归的时间,联合组的渗出吸收和眼底出血吸收短于激光组和雷珠单抗组(P<0.05)。治疗后,与治疗前水平相比,3组的CMT和RNV均降低,联合组的CMT和RNV低于激光组和雷珠单抗组(P<0.05).各组治疗后BCVA均升高,联合组明显高于激光和雷珠单抗组(P<0.05)。与激光组和雷珠单抗组相比,联合组的NO更高。各组治疗后VEGF水平均下降,联合组明显低于激光组和雷珠单抗组(P<0.05)。联合组并发症发生率低于激光组和雷珠单抗组(P<0.05)。
    与单独使用雷珠单抗或LP相比,雷珠单抗联合LP对降低DEM患者的ME更有效,并且与较少的并发症有关。
    UNASSIGNED: To explore the clinical effect of ranibizumab combined with laser photocoagulation (LP) in treating diabetic macular edema (DME).
    UNASSIGNED: We retrospectively reviewed the clinical data of 118 patients with DME admitted to The Affiliated Eye Hospital of Nanchang University from May 2021 to March 2023. Among them, 38 patients received LP alone (Laser-group), 39 patients received ranibizumab alone (Ranibizumab-group), and 41 patients received LP combined with ranibizumab (Combined-group). The improvement of macular edema (ME), visual acuity, and complications between the groups were compared.
    UNASSIGNED: The time of ME regression, exudation absorption and fundus hemorrhage absorption in the Combined-group was shorter than in the Laser-group and the Ranibizumab-group (P<0.05). After treatment, the CMT and RNV of the three groups decreased compared to pretreatment levels and were lower in the Combined-group compared to the Laser-group and the Ranibizumab-group (P<0.05). BCVA increased after the treatment in all groups, and was markedly higher in the Combined-group than in the Laser and the Ranibizumab-groups (P<0.05). NO were higher in the Combined-group compared to the Laser-group and the Ranibizumab-group. The post-treatment VEGF levels decreased in all groups, and were significantly lower in the Combined-group compared to the Laser-group and the Ranibizumab-group (P<0.05). The incidence of complications in the Combined-group was lower than in the Laser-group and the Ranibizumab-group (P<0.05).
    UNASSIGNED: Compared to ranibizumab or LP alone, ranibizumab combined with LP is more effective in reducing ME in patients with DEM, and is associated with fewer complications.
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  • 文章类型: Journal Article
    背景:眼皮肤白化病(OCA)是一组影响黑色素生物合成的常染色体隐性遗传性疾病,导致头发异常,皮肤,和眼睛。早产儿视网膜病变(ROP)是一种增殖性视网膜病变,主要见于低出生体重和胎龄较早的早产儿。但它也会影响足月婴儿或体重正常的儿童,特别是在发展中国家。ROP和OCA的共存是罕见的。关于治疗方法的文件有限,由于缺乏黑色素,很少有研究报告激光治疗的积极结果。这项研究讨论了诊断为ROP和OCA的女婴的治疗挑战,并强调了遗传分析在指导这种罕见的合并症的治疗决策中的重要性。
    方法:本研究报告1例ROP与OCA同时发生。基因检测显示两种变异,c.727C>T(p。R243C)和c.1832T>C(p。L611P),在OCA2基因中,从病人的母亲和父亲那里继承下来,分别。鉴定的突变与OCA2的诊断一致,被分类为OCA的亚型。患者最初接受玻璃体内注射抗血管内皮生长因子(抗VEGF),然后是激光光凝治疗复发事件.在2个月的随访期间观察到良好的结果。
    结论:ROP和OCA的同时出现是一种罕见的现象,这是中国人口中记录的第一例。当前病例支持使用激光作为部分色素沉着受损的OCA2患者ROP的主要治疗方式。此外,遗传分析可以帮助预测该患者人群中激光光凝的有效性.
    BACKGROUND: Oculocutaneous albinism (OCA) is a group of autosomal recessive hereditary disorders that affect melanin biosynthesis, resulting in abnormalities in hair, skin, and eyes. Retinopathy of prematurity (ROP) is a proliferative retinopathy mainly observed in premature infants with low birth weight and early gestational age, but it can also affect full-term infants or children with normal weight, particularly in developing countries. The coexistence of ROP and OCA is rare. There is limited documentation regarding treatment approaches, with few studies reporting positive outcomes with laser treatment due to the absence of melanin pigment. This study discusses the treatment challenges in a female infant diagnosed with ROP and OCA, and underscores the importance of genetic analysis in guiding therapeutic decisions for this rare comorbid condition.
    METHODS: The study presents a case of ROP occurring concurrently with OCA. Genetic testing revealed two variants, c.727C > T (p.R243C) and c.1832 T > C (p.L611P), in the OCA2 gene, inherited from the patient\'s mother and father, respectively. The identified mutations were consistent with a diagnosis of OCA2, classified as a subtype of OCA. The patient initially received intravitreal anti-vascular endothelial growth factor (anti-VEGF) injection, followed by laser photocoagulation therapy for a recurrent event. A favorable outcome was observed during the 2-month follow-up period.
    CONCLUSIONS: The co-occurrence of ROP and OCA is a rare phenomenon, and this is the first recorded case in the Chinese population. The current case supports the use of laser as the primary treatment modality for ROP in OCA2 patients with partial pigmentation impairment. Furthermore, genetic analysis can aid in predicting the effectiveness of laser photocoagulation in this patient population.
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  • 文章类型: Case Reports
    由于病情的稀有性以及无法获得全面的数据来展示当前可用的治疗方案的功效,因此,妊娠年轻女性的脉络膜新生血管形成(CNVM)的管理一直是一个空白。对于成长中的胎儿以及患者本身。在对现有文献的回顾中,这种情况已经用抗血管内皮生长因子(抗VEGF)治疗,激光光凝,和玻璃体内地塞米松植入物(IDI),结果各不相同,从妊娠的成功结局到流产。面对这样的情况,医疗保健专业人员通常谨慎行事,平衡可能的优势与对母亲和胎儿的危害。在这里,我们介绍了一名30岁的年轻孕妇的病例报告,该孕妇在怀孕的第三个月期间发展为特发性CNVM。作为一个罕见的实体,由于对母亲和胎儿健康的潜在影响,年轻孕妇的CNVM引起了严重的关注。在某些以前记录的案件中,患有CNVM的孕妇已成功接受IDI治疗。因此,经过深思熟虑,我们选择使用IDI而不是抗VEGF,这导致了她的CNVM的成功管理,并实现了足月正常分娩,没有任何胎儿异常。在这种特殊情况下,妊娠和视觉康复均取得了良好的结局.没有相关的眼内压(IOP)升高或透镜状结构的变化。文献综述还表明,IDI可能在怀孕期间管理CNVM仍然有效,但风险低于抗VEGF药物。即使病例报告显示了有利的结果,需要更大规模的研究来正确检查IDI的安全性,以便监管机构通过其妊娠安全性.
    The management of choroidal neovascularization (CNVM) in pregnant young females has been a lacuna due to the rarity of the condition as well as the non-availability of comprehensive data to showcase the efficacy of currently available treatment regimes in order to achieve a positive outcome for both the growing fetus as well the patient herself. In a review of available literature, the condition has been treated with anti-vascular endothelial growth factors (anti-VEGF), laser photocoagulation, and intravitreal dexamethasone implants (IDI), with varied results ranging from the successful outcome in terms of pregnancy to abortions. When faced with such circumstances, healthcare professionals usually proceed cautiously, balancing the possible advantages against the hazards to the mother and the fetus. Here we present a case report of a young 30-year-old pregnant lady who developed idiopathic CNVM during her third month of gestation. Being a rare entity, CNVM in young pregnant women raises severe concerns due to potential consequences on the mother\'s and fetus\'s health. In certain previously documented cases, pregnant ladies with CNVM have been successfully treated with IDI. Hence, after much deliberation, we chose to go with IDI rather than anti-VEGF, which resulted in the successful management of her CNVM as well as achieving full-term normal delivery without any fetal anomalies. In this particular case, the pregnancy and the visual rehabilitation have both had favorable outcomes. There was no associated increased intraocular pressure (IOP) or changes to the lenticular structure. The literature review also suggests that IDI may still be as effective in managing CNVM during pregnancy, but at a lower risk than anti-VEGF drug. Even with the favorable outcomes revealed in case reports, larger-scale studies to properly examine IDI\'s safety profile would be required for regulatory clearance of its safety in pregnancy.
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  • 文章类型: Journal Article
    背景:为了探索患者对复杂的单绒毛膜多胎妊娠的诊断和治疗选择的看法,和经验与胎儿镜激光光凝。
    方法:这是一项对接受激光光凝治疗的患者进行的前瞻性队列研究。参与者在怀孕期间和产后期间进行了访谈。进行定性分析。
    结果:纳入27例激光光凝候选患者。全部当选为激光光凝。患者选择以提高生存率为目标的手术,降低早产的风险,改善胎儿的长期健康。他们展示了对治疗风险和益处的准确了解。大多数(74%)认为激光光凝是他们唯一可行的临床选择。很少有人认真考虑终止妊娠或选择性减少妊娠(分别为7%和11%)。产后,患者对他们的手术决定并不后悔,但许多人对早产的挑战感到毫无准备。
    结论:参与者与胎儿专家相似地权衡治疗方案。他们承认,但没有认真考虑除胎儿镜激光光凝外的其他治疗方法,并且非常有动力尽一切可能改善胎儿的结果。
    BACKGROUND: The aim of the study was to explore patients\' perspectives on diagnosis and treatment options for complicated monochorionic multiple gestations, and experiences with fetoscopic laser photocoagulation.
    METHODS: This is a prospective cohort study of patients undergoing laser photocoagulation. Participants were interviewed during pregnancy and the postpartum period. Qualitative analysis was performed.
    RESULTS: Twenty-seven patients who were candidates for laser photocoagulation were included. All elected to have laser photocoagulation. Patients chose surgery with goals of improving survival, decreasing the risk of preterm delivery, and improving the long-term health of their fetuses. They demonstrated accurate knowledge of the risks and benefits of treatment. Most (74%) felt that laser photocoagulation represented their only viable clinical option. Few seriously considered pregnancy termination or selective reduction (7% and 11% respectively). Postpartum, patients expressed no regrets about their decisions for surgery, but many felt unprepared for the challenges of preterm delivery.
    CONCLUSIONS: Participants weighed treatment options similarly to fetal specialists. They acknowledged but did not seriously consider treatments other than fetoscopic laser photocoagulation and were highly motivated to do whatever they could to improve outcomes for their fetuses.
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    目的:本研究旨在分析光学相干断层扫描血管造影(OCTA)对糖尿病性黄斑水肿(DME)分期的影响,并评估激光光凝的疗效。
    方法:选择2019年8月至2022年3月在我院就诊的86例(141只眼)疑似DME患者,行眼底血管造影和OCTA检查。比较两种检查方法在黄斑水肿分期中的疗效。随后,灵敏度,特异性,准确度,正预测值,以眼底血管造影作为金标准评估OCTA诊断DME的阴性预测值。在使用激光光凝治疗的具有临床意义的黄斑水肿(CSME)的患者中,中央凹形非灌注区(FAZ),血管密度(VD),黄斑中心视网膜厚度(CRT),全视网膜血流密度(FD-300),浅表毛细血管丛(SCP),治疗前使用OCTA3mm×3mm模式测量深毛细血管丛(DCP),治疗后3个月,治疗后6个月。SCP,深毛细血管丛(DCP),血流密度(VD),最佳矫正视力(BCVA),治疗前记录中央视网膜厚度(CRT),治疗后3个月,治疗后6个月。采用Pearson相关性分析治疗后6个月BCVA与治疗前OCTA参数的相关性。
    结果:对86例(141只眼)疑似DME患者行眼底血管造影。141只眼睛中,44没有泄漏,52例弥漫性水肿,40例有局灶性黄斑水肿,5只眼缺血。共有97只眼眼底血管造影显示CSME。以眼底血管造影作为金标准,OCTA的灵敏度为97.94%,特异性为63.64%,诊断CSME的准确率为87.23%。OCTA与眼底血管造影的Kappa值为0.674。受试者工作特征曲线显示,OCTA诊断CSME的曲线下面积(AUC)为0.808(95%置信区间:0.717-0.899)。BCVA更高,CSME患者在治疗后3个月和6个月的CRT降低(P<0.05)。CSME患者治疗后3个月的OCTA参数与治疗前比较差异无统计学意义(P>0.05)。同样,CSME患者治疗后6个月的FD300与治疗前比较差异无统计学意义(P>0.05)。然而,FAZ地区,DCP-VD(总体上,中央凹面,和准中央凹),和SCP-VD(总体而言,中央凹面,与治疗前相比,CSME患者在治疗后6个月和旁中心凹)较高(P<0.05)。Pearson相关显示BCVA与治疗前FAZ面积呈正相关,DCP-VD,和SCP-VD(r>0,P<0.05),与CRT呈负相关(r<0,P<0.05)。
    结论:OCTA对DME的诊断和分期具有较高的敏感性和特异性。它能巧妙地捕捉到激光光凝治疗前后黄斑中央隐窝的微血管和视觉变化,定量指导DME的后续治疗。
    OBJECTIVE: This study aimed to analyze the effect of optical coherence tomography angiography (OCTA) on diabetic macular edema (DME) staging and assess the efficacy of laser photocoagulation.
    METHODS: Eighty-six patients (141 eyes) with suspected DME who visited our hospital from August 2019 to March 2022 were selected and underwent fundus angiography and OCTA. The two examination methods were compared in terms of their efficacy in macular edema staging. Subsequently, the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of OCTA in diagnosing DME were assessed using fundus angiography as the gold standard. In patients with clinically significant macular edema (CSME) treated with laser photocoagulation, the central concave non-perfused zone (FAZ), vascular density (VD), central macular retinal thickness (CRT), whole retinal blood flow density (FD-300), superficial capillary plexus (SCP), and deep capillary plexus (DCP) were measured using the OCTA 3 mm × 3 mm mode before treatment, at 3 months after treatment, and at 6 months after treatment. SCP, deep capillary plexus (DCP), blood flow density (VD), best corrected visual acuity (BCVA), and central retinal thickness (CRT) were recorded before treatment, 3 months after treatment, and 6 months after treatment. The correlation between BCVA and pre-treatment OCTA parameters at 6 months after treatment was analyzed using Pearson\'s correlation.
    RESULTS: Fundus angiography was performed in 86 patients (141 eyes) with suspected DME. Of the 141 eyes, 44 had no leakage, 52 had diffuse edema, 40 had focal macular edema, and 5 had eyes ischemia. A total of 97 eyes showed CSME on fundus angiography. Using fundus angiography as the gold standard, OCTA exhibited a sensitivity of 97.94 %, a specificity of 63.64 %, and an accuracy of 87.23 % in diagnosing CSME. The Kappa value between OCTA and fundus angiography was 0.674. The receiver operating characteristic curve revealed that the area under the curve (AUC) of OCTA in diagnosing CSME was 0.808 (95 % confidence interval: 0.717-0.899). The BCVA was higher, while the CRT was lower in CSME patients at 3 and 6 months after treatment (P<0.05). No significant difference was observed in the OCTA parameters in CSME patients at 3 months after treatment compared with that before treatment (P>0.05). Similarly, no significant difference was found in the FD300 of CSME patients at 6 months after treatment compared with that before treatment (P>0.05). However, the FAZ area, DCP-VD (overall, central concave, and paracentral concave), and SCP-VD (overall, central concave, and paracentral concave) were higher in CSME patients at 6 months after treatment compared with that before treatment (P<0.05). Pearson\'s correlation showed that BCVA was positively correlated with pre-treatment FAZ area, DCP-VD, and SCP-VD (r>0, P<0.05), and negatively associated with CRT (r<0, P<0.05).
    CONCLUSIONS: OCTA exhibited high sensitivity and specificity in diagnosis and staging DME. It adeptly captures the microvascular and visual changes in the central macular recess before and after laser photocoagulation therapy, which can quantitatively guide the follow-up treatment of DME.
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  • 文章类型: Journal Article
    目的:确定在没有双胎贫血红细胞增多症序列(TAPS)的情况下,在合并双胎对双胎输血综合征(TTTS)的妊娠中,高大脑中动脉峰值收缩期血流速度(MCA-PSV)与胎儿死亡的关系。
    方法:这项前瞻性队列研究包括2011年至2022年在单中心接受激光手术的TTTS病例。TAPS病例被排除在研究之外。主要目的是探讨在并发TTTS的妊娠中,高MCA-PSV(>中位数的1.5倍)与供体双胞胎胎儿死亡的关系。次要目标是:1)通过接受操作员特征曲线分析,评估供体或受体MCA-PSV是否与相应的胎儿死亡风险增加相关;2)比较MCA-PSV高的供体双胞胎和MCA-PSV正常的双胞胎中MCA搏动指数低的胎儿比例,以评估血流再分配对MCA-PSV高的贡献。进行多变量和泊松回归分析以探讨分离的高供体MCA-PSV与胎儿死亡的关系。针对TTTS阶段进行了调整,选择性胎儿生长受限(sFGR),和其他混杂因素。p<0.05被认为是显著的。
    结果:在660个TTTS病例中,48例(7.3%)病例中没有供体MCA-PSV.其余612名患者中,9人(1.5%)失去随访,排除了96例TAPS病例。在6.5%(33/507)的研究群体中观察到高供体MCA-PSV。高供体MCA-PSV是供体胎儿死亡的独立危险因素(校正相对风险(aRR)为4.52;95%CI:2.72-7.50),针对混杂因素进行了调整。局限于每个QuinteroTTTS阶段的回归分析表明,高供体MCA-PSV是QuinteroII期(aRR为14.21;95%CI:1.09-186.2)和QuinteroIII期(aRR为3.41;95%CI:1.82-6.41)供体胎儿死亡的独立危险因素。供体MCA-PSV与供体胎儿死亡相关(AUC:0.69;p<0.001),但受者MCA-PSV与其相应的胎儿死亡无关(AUC:0.54;p=0.44).与MCA-PSV正常组相比,MCA-PSV高的供体双胞胎比例较高(33.3%vs.15.5%;p=0.016)。
    结论:激光手术前没有TAPS的供体MCA-PSV升高与供体胎儿死亡风险增加4倍相关,针对sFGR进行了调整,TTTS舞台,和其他混杂因素。激光手术前对供体MCA-PSV的多普勒评估可以进一步对TTTS分期进行分层,以评估供体胎儿死亡的风险。本文受版权保护。保留所有权利。
    OBJECTIVE: To determine the association between elevated (> 1.5 multiples of the median (MoM)) middle cerebral artery (MCA) peak systolic velocity (PSV) and fetal demise of the donor twin in pregnancies complicated by twin-twin transfusion syndrome (TTTS) in the absence of twin anemia-polycythemia sequence (TAPS). Secondary objectives were to evaluate if donor or recipient MCA-PSV is associated with a risk for their corresponding fetal death, and to compare the proportion of donor fetuses with low MCA pulsatility index (PI) among donor twins with high MCA-PSV and those with normal MCA-PSV to evaluate the contribution of blood-flow redistribution to the fetal brain in donor twins with high MCA-PSV.
    METHODS: This prospective cohort study included TTTS cases that underwent laser surgery between 2011 and 2022 at a single center. TAPS cases were excluded from the study. Multivariable and Poisson regression analysis were performed to explore the association between isolated elevated donor MCA-PSV and fetal demise, adjusted for TTTS stage, selective fetal growth restriction (sFGR) and other confounders.
    RESULTS: Of 660 TTTS cases, donor MCA-PSV was not recorded in 48 (7.3%) cases. Of the remaining 612 patients, nine (1.5%) were lost to follow-up and 96 TAPS cases were excluded; thus, 507 cases were included in the study. High donor MCA-PSV was seen in 6.5% (33/507) of cases and was an independent risk factor for donor fetal demise (adjusted relative risk (aRR), 4.52 (95% CI, 2.72-7.50)), after adjusting for confounders. Regression analysis restricted to each Quintero TTTS stage demonstrated that high donor MCA-PSV was an independent risk factor for fetal demise of the donor in Quintero Stage II (aRR, 14.21 (95% CI, 1.09-186.2)) and Quintero Stage III (aRR, 3.41 (95% CI, 1.82-6.41)). Donor MCA-PSV in MoM was associated with fetal demise of the donor (area under the receiver-operating-characteristics curve (AUC), 0.69; P < 0.001), but recipient MCA-PSV in MoM was not associated with fetal demise of the recipient (AUC, 0.54; P = 0.44). A higher proportion of donor twins in the group with high MCA-PSV had a low MCA-PI compared to the group with normal MCA-PSV (33.3% vs 15.5%; P = 0.016).
    CONCLUSIONS: Elevated donor MCA-PSV without TAPS prior to laser surgery for TTTS is associated with a 4-fold increased risk for donor fetal demise, adjusted for sFGR, TTTS stage and other confounders. Doppler evaluation of donor MCA-PSV prior to laser surgery may help stratify TTTS staging to evaluate the risk of donor fetal demise. © 2024 International Society of Ultrasound in Obstetrics and Gynecology.
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