腹主动脉瘤腔内隔绝术后迟发型远端内漏Ⅱ期腔内治疗

目的：探讨腹主动脉瘤（AAA）腔内隔绝术EVE后迟发型远端内漏的Ⅱ期腔内治疗方法的价值。方法：为3例AAA EVE3年以后迟发型远端内漏患者进行了Ⅱ期延伸移植物置入治疗，2例经双侧动脉切开、两侧各置入1枚延伸移植物，1例经腹膜后径路和股动脉径路完成3枚延伸移植物置入。结果：3例均应用了贯穿导丝牵张技术，延伸移植物置入完成后均将内漏消除。结论：Vanguard支架-人造血管系统的结构特点可能是导致远期远端内漏的原因；延伸移植物是治疗的有效方法。导丝牵张技术有助于手术成功并节约手术时间。     

胸主动脉夹层腔内修复术内漏研究

目的 探讨胸主动脉夹层腔内修复术(TEVAR)治疗Stanford B型胸主动脉夹层发生内漏原因及分型特点.方法 回顾性分析2007年3月至2014年5月确诊为StandfordB型胸主动脉夹层并完成TEVAR术治疗的189例患者,观察术中及术后内漏分型及影像学表现,患者生存率和生存质量.结果 TEVAR术中和术后共25例患者发生内漏,发生率为13.2％(25/189).其中急性内漏22例,包括Ⅰ型14例(7.4％),Ⅱ型8例(4.2％);迟发性内漏3例,包括Ⅱ型2例(1.1％),Ⅲ型l例(0.5％).术后患者生存质量未下降,未出现截瘫、肾动脉缺血等严重并发症.结论 TEVAR术内漏分型、影响因素不同,内漏发生概率各异,急性和迟发性内漏中Ⅰ型和Ⅱ型内漏最为常见.     

腹主动脉瘤腔内隔绝术后内漏的治疗

为探讨腹主动脉瘤（AAA）腔内隔绝术（EVGE）后内漏产生的原因和治疗方法,作者总结分析了38例腔内隔绝术并发内漏的诊治体会。38例腔内隔绝术中共4例并发内漏,其中I型内漏2例,Ⅱ型内漏1例,Ⅲ型内漏1例;1例中转传统手术,其余3例在观察中。DSA是术中发现内漏的有效手段,球囊扩张法、支架法、移植物法和栓堵法是治疗内漏的有效方法。     

腹主动脉瘤腔内隔绝术后内漏的治疗①

为探讨腹主动脉瘤(AAA)腔内隔绝术(EVGE)后内漏产生的原因和治疗方法,作者总结分析了38例腔内隔绝术并发内漏的诊治体会.38例腔内隔绝术中共4例并发内漏,其中Ⅰ型内漏2例,Ⅱ型内漏1例,Ⅲ型内漏1例;1例中转传统手术,其余3例在观察中.DSA是术中发现内漏的有效手段,球囊扩张法、支架法、移植物法和栓堵法是治疗内漏的有效方法.     

血管塞治疗腹主动脉瘤主动脉腔内修复术后高流量Ⅰ型内漏4例

目的 探讨血管塞治疗腹主动脉瘤主动脉腔内修复术后高流量Ⅰ型内漏的可行性和安全性.方法 回顾性分析2019年5月至9月收治的腹主动脉瘤主动脉腔内修复术患者临床资料,其中3例腹主动脉瘤术后即刻造影发现Ⅰa型内漏,1例腹主动脉瘤术后3个月复查CT发现Ⅰb型内漏.4例腹主动脉瘤主动脉腔内修复术后高流量Ⅰ型内漏患者均接受血管塞栓...     

胸、腹主动脉病变的血管内治疗

目的探讨胸、腹主动脉病变不同血管内治疗方法的临床疗效。方法7例患者,其中DebakeyⅢ型主动脉夹层5例(4例行一体式支架腔内隔绝术,1例行内膜瓣开窗术);DebakeyⅢ型主动脉夹层外院外科人造血管置换术后降主动脉假性动脉瘤形成1例(行一体式支架腔内隔绝术);肾动脉开口以下腹主动脉瘤1例(行分体式支架腔内隔绝术)。结果5例一体式支架腔内隔绝术均获成功,2例出现Ⅰ型内漏,1例经球囊扩张后内漏消失,1例30 min后内漏减少,未处理;1例内膜瓣开窗术后患者双下肢缺血症状消失;1例分体式支架腔内隔绝术后造影提示动脉瘤消失,无内漏发生。结论应用血管内支架移植物或内膜瓣开窗术治疗胸、腹主动脉病变安全有效,其中分体式支架的临床应用具有更好的前景。     

彩超对动脉瘤腔内隔绝术后内漏的诊断价值

目的:探讨彩色多普勒超声对动脉瘤腔内隔绝术后内漏的诊断价值。方法:回顾性分析30例腹主动脉瘤患者腔内隔绝术后二维及彩色多普勒超声表现。结果:30例患者中6例出现内漏,发生率为20%,其中Ⅰ型1例,Ⅱ型4例,Ⅲ型1例。其中5例经CT证实,随访时间延长,3例患者内漏消失。结论:彩超是动脉瘤腔内隔绝术后诊断内漏有价值、可信赖,经济的检查方法。     

瘤腔内注射纤维蛋白胶治疗腹主动脉瘤腔内隔绝术后内漏

内漏是腹主动脉瘤 (ＡＡＡ )腔内隔绝术 (ＥＶＥ)所特有的并发症 ,内漏的存在说明动脉瘤未与循环系统完全隔开 ,动脉瘤有继续增大甚至破裂的可能 ,可导致ＡＡＡＥＶＥ的失败。我们应用瘤腔内注射纤维蛋白胶 (ＦＧ医用生物蛋白胶 ,广州倍特生物技术有限公司产品 )来治疗 3例术中Ⅰ型即时性内漏 ,现报道如下。资料、方法和结果一、患者资料自开展ＥＶＥ以来 ,136例ＡＡＡ患者在我院接受治疗。术中即刻发生近端Ⅰ型内漏 17例(12 .5 % ) ,远端Ⅰ型内漏 19例 (13.9% )。对于其中3例患者采用了瘤腔内注射促凝血药物纤维蛋白胶的方法来治疗内漏 ,1…     

多层螺旋CT血管造影对腔内隔绝术后内漏的诊断价值

目的 探讨多层螺旋CT血管造影(MSCTA)对腔内隔绝术后内漏的诊断价值。方法105例腹主动脉瘤和主动脉夹层腔内隔绝术后行MSCTA，采用准直2.5mm，层厚3．0mm，螺距为6，重建方法为容积显示技术、表面遮盖显示、最大密度投影法及多层面重建法。观察分析原始图像及三维重建图像，确定有无内漏、内漏的类型及漏出量。结果 105例中有13例术后出现内漏，发生率为12．4％，其中，8例为腹主动脉瘤腔内隔绝术后，5例为主动脉夹层术后；Ⅰ型内漏8例，Ⅱ型2例，Ⅲ型3例。结论 MSCTA有利于腔内隔绝术后内漏的诊断，应作为腔内隔绝术后诊断内漏等并发症的主要影像检查方法。     

多层螺旋CT造影在主动脉病变腔内修复术后随访的价值

目的:探讨多层螺旋CT血管造影(multi-detector rowspiral computed tomography angiography,MDCTA)及后处理技术在主动脉覆膜支架腔内修复术(transluminal stent-graft placement,TSGP)术后随访的临床应用价值。方法:21例接受TSGP主动脉疾病患者,包括:Stanford B型夹层13例,真性动脉瘤3例,假性动脉瘤2例,弓降部穿透性溃疡1例,胸主动脉瘤合并局限性夹层1例,胸主动脉瘤合并Stanford B型夹层1例,术后采用MDCTA进行随访,平均随访13个月(1~24个月)。采用轴位图像与多种重建图像相结合来显示支架形态、术前术后主动脉管腔情况的变化和有无并发症。结果:13例主动脉夹层覆膜支架置入后:所有患者均真腔扩大,假腔减小或消失并伴血栓形成,支架未发现移位或断裂;共3例(14%)随访中发现内漏,1例Ⅱ型内漏,建议随访观察;1例术后8个月复查新发现支架近端Ⅰ型内漏,密切随访2个月后患者出现胸痛,复查CT内漏增多,转外科治疗。1例腹主动脉瘤术后1月复查发现Ⅲ型内漏。所有患者介入术后CT随访图像均满足临床诊断需要。结论:MDCTA对主动脉覆膜支架置入术后随访较其他检查手段具有多方面的优越性,能及时观察术后疗效、发现并发症,对主动脉疾病覆膜支架腔内修复术后随访具有重要价值。     

Type IIIb Endoleak Is Not Extremely Rare and May Be Underdiagnosed after Endovascular Aneurysm Repair

PurposeTo investigate the real incidence of type IIIb endoleaks associated with the Zenith stent graft, currently the most widely used third-generation polyester stent graft, in a Japanese multicenter database.Materials and MethodsRetrospective analysis was conducted of 433 patients who underwent endovascular aneurysm repair (EVAR) of aortoiliac aneurysms with the use of Zenith stent grafts from 2007 to 2016. The mean age of patients was 75.6 y ± 7.8, and 85.2% of patients were men. Mean transverse diameters of abdominal aortic aneurysms and common iliac artery aneurysms were 50.8 mm ± 9.9 and 42.2 mm ± 10.3, respectively.ResultsDuring a mean follow-up period of 41.9 mo, 7 type IIIb endoleaks (1.6%) were identified. Four patients were definitively diagnosed during repeat intervention, and 3 were diagnosed based on postoperative CT images. Three patients were treated surgically, 2 were treated by relining with an additional stent graft, and 2 were conservatively followed with CT imaging. Only 1 of 5 patients who underwent repeat intervention had a preoperative diagnosis of type IIIb endoleak, reflecting the difficulty in its diagnosis.ConclusionsThe incidence of type IIIb endoleak in Zenith stent grafts was 1.6% in this study, suggesting that type IIIb endoleaks are not extremely rare. In addition, type IIIb endoleak may be underdiagnosed or misdiagnosed as a different type of endoleak. Type IIIb endoleaks should always be considered in patients with sac expansion after EVAR.     

腹主动脉瘤腔内隔绝术中内漏动物模型的建立

目的：建立近似人体的腹主动脉瘤（AAA）腔内隔绝术（EVE）后内漏的实验动物模型。方法：采用6只犬 ，以牛颈静脉间置法或前壁补片的方法形成保留腰动脉的肾下型AAA，经髂动脉行AAA EVE，术中采用修剪人造血管和改变支架附着点的方法形成内漏。结果：血管造影示6只犬动脉瘤形态良好，5只犬形成了即时性内漏，内漏来自近端返流，也有近端返流。结论：通过移植物释放位置的变化可以模拟出与人体EVE后相似的即时性内漏，以供血流动力学和治疗研究。     

裸支架在腹主动脉瘤腔内隔绝术后近端内漏治疗中的应用

目的：探讨应用裸支架治疗主动脉瘤腔内隔绝术后近端内漏的价值和安全性。方法：使用裸支架地治疗原发性内漏3例，继发性内漏1例。1例裸支架在肾动脉下固定。3例跨双侧肾动脉开口固定。结果：裸支架均成功置入，近端内漏完全消除，术后未观察到肾功能受损、裸支架移位和近端内漏复发等并发症。结论：使用裸支架法治疗近端内漏，是一种安全、有效、可行的选择。     

Endovascular Stent Graft Placement in the Treatment of Ruptured Tuberculous Pseudoaneurysm of the Descending Thoracic Aorta: Case Report and Review of the Literature

We report a successful repair of a ruptured tuberculous pseudoaneurysm of the descending thoracic aorta by endovascular stent graft placement. This procedure is starting to be accepted as an alternative method to surgery, and we review similar cases in the literature.     

应用国产覆膜支架治疗Stanford B型主动脉夹层动脉瘤

目的:评价应用国产覆膜支架治疗B型主动脉夹层动脉瘤的安全性及临床疗效.方法:自2005 - 05～2009 - 12对38例Stanford B型主动脉夹层动脉瘤实施了腔内隔绝术.其中男29例,女9例;年龄(54±12)岁.经CT增强扫描或磁共振成像(MRJ)确诊.切开左或右股动脉置入覆膜支架,封堵胸主动脉破裂口,置入后造影检查证实疗效,随访行CT或MRI检查.结果:支架置入全部成功,术后即刻造影36例无内漏,2例见少量内漏.降主动脉及腹主动脉真腔均明显扩大,远端降主动脉及分支供血均有不同程度改善.住院期间及随访1年内无患者死亡,发生主动脉腔内隔绝术后综合征3例.结论:应用国产覆膜支架腔内隔绝治疗B型主动脉夹层动脉瘤是一种操作简便、安全、成功率高、并发症少,疗效可靠的介入方法.     

胸主动脉夹层动脉瘤腔内隔绝术前裂口的评估

为探讨胸主动脉夹层动脉瘤腔内隔绝手术前裂口评估的意义及方法,作者分析了32例以螺旋CT为主要术前检查评估方式、少数采用MRA检查的病例,并与术中DSA对比。结果表明,第一裂口发现率CT检查为90．32％,MRA为66．7％,DSA为100％;大部分裂口位于断面片时钟位的3－7点;多裂口情况下CT与DSA检查结果有一定差异。提示术前准确评估裂口将有利于手术方案、移植物的选择;CT是术前评估裂口的最主要方法。     

胸主动脉夹层动脉瘤血管内支架介入治疗

目的探讨腔内隔绝术（EVGE）治疗胸主动脉夹层动脉瘤（TAD）的技术和方法。资料与方法TAD55例,支架为记忆合金自膨支架和超薄涤纶人工血管的复合体,直径根据螺旋CT血管造影（CTA）和主动脉数字减影血管造影（DSA）确定。在DSA引导下沿导丝经真腔将该复合体封闭内膜破口和假腔。结果55例共置入63个支架,其中置入1个支架48例,2个支架6例,3个支架1例。内漏9例。术中死亡1例,54例术后康复良好。手术后CT随访。结论术前准确影像学评价,选择适当口径、长度的支架和术中准确定位夹层裂口和正确判断夹层真、假腔是EVGE治疗成功的关键。肠系膜上动脉、肾动脉受累并不是绝对禁忌症。EVGE创伤小,安全度高,是当前治疗TAD的新颖、高效、首选的介入治疗方法。     

Multislice CT Angiography of Fenestrated Endovascular Stent Grafting for Treating Abdominal Aortic Aneurysms: a Pictorial Review of the 2D/3D Visualizations

Fenestrated endovascular repair of an abdominal aortic aneurysm has been developed to treat patients with a short or complicated aneurysm neck. Fenestration involves creating an opening in the graft fabric to accommodate the orifice of the vessel that is targeted for preservation. Fixation of the fenestration to the renal arteries and the other visceral arteries can be done by implanting bare or covered stents across the graft-artery ostia interfaces so that a portion of the stent protrudes into the aortic lumen. Accurate alignment of the targeted vessels in a longitudinal aspect is hard to achieve during stent deployment because rotation of the stent graft may take place during delivery from the sheath. Understanding the 3D relationship of the aortic branches and the fenestrated vessel stents following fenestration will aid endovascular specialists to evaluate how the stent graft is situated within the aorta after placement of fenestrations. The aim of this article is to provide the 2D and 3D imaging appearances of the fenestrated endovascular grafts that were implanted in a group of patients with abdominal aortic aneurysms, based on the multislice CT angiography. The potential applications of each visualization technique were explored and compared with the 2D axial images.     

Clinical Outcomes for Endovascular Repair of Thoracic Aortic Disease Using the Seal Thoracic Stent Graft: A Korean Multicenter Retrospective Study

Purpose

To investigate the midterm outcomes of thoracic endovascular aneurysm repair (TEVAR) with the use of the Seal stent graft for four categories of thoracic aortic disease.