腹主动脉/主髂动脉瘤腔内移植物研究
Endologix 分叉 PowerLink 系统临床研究
研究概览
详细说明
动脉瘤是动脉的永久性局部扩张,其直径比正常动脉增加 ≥ 50%。 尽管任何动脉都可能形成动脉瘤,但最常见于腹主动脉、胸主动脉、腘动脉和髂总动脉。
许多临床前研究已经评估了使用血管内支架和腔内移植物来排除自然动脉瘤或治疗闭塞性血管病变。 血管内支架移植物植入通过使用外周动脉作为通往动脉瘤的路径而避免了腹部手术的需要,并且支架提供了除缝合之外的移植物附着方式。 腔内移植的目标与传统修复的目标相同,允许在动脉瘤的末端之间插入弹性导管以将其排除在循环之外并防止动脉瘤破裂。
这是用于治疗腹部肾下主动脉髂动脉瘤 (AAA) 的分叉 PowerLink 系统(腔内移植物)的 2 期临床研究。 螺旋 CT 扫描、血管造影、超声波和荧光透视成像等诊断成像方法将用于选择放置设备的位置并确保精确部署。
输送导管允许通过逆行(股动脉或髂动脉)或顺行(肱动脉)方法在血管内放置设备(腔内移植物)。 腔内移植物 (ELG) 是一种自膨胀金属合金支架笼,其外部覆盖有薄壁 ePTPE 移植物材料。 移植材料在整个 ELG 长度上得到充分支撑。 ELG 还提供分叉配置。 分叉输送导管有各种直径和工作长度可供选择。 该导管由带稳态阀的导引鞘和内轴组成。 内轴是一个带有锥形尖端的闭塞器,通过海波管连接到后部闭塞器。 ELG 的主体在海波管周围被压缩,然后装入输送导管中。 ELG 的对侧和同侧肢体被压缩在各自的肢体覆盖物中,并装入输送导管中。 内轴容纳一个标准的 .035 英寸导丝。
同时进行的手术控制和测试患者参与研究将包括入组、研究设备程序或手术修复和随访期。 将在以下期间收集患者数据:出院时和 1 个月时的术前、手术和术后随访。 对同步手术控制和测试患者的长期随访将持续 6 个月和 12 个月以支持 PMA。 可能需要延长随访时间,直到根据 PMA 批准研究设备,或根据上市后监督要求进行长达 5 年的随访。
研究类型
注册 (实际的)
阶段
- 阶段2
联系人和位置
学习地点
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Arizona
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Phoenix、Arizona、美国、85006
- Arizona Heart Institute
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-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
纳入标准:
- ≥ 18 岁
- 了解并签署知情同意书
- 将遵守治疗后随访要求
- 常规开放手术修复的候选人
解剖学纳入标准:
- 动脉瘤外径≥ 4.0 cm 或囊状动脉瘤外径≥ 3.0 cm 或动脉瘤≥正常主动脉外径的两倍或快速生长的动脉瘤(≥ 5 mm 超过 6 个月)
排除标准:
- 预期寿命 < 2 年
- 参加另一项临床研究
- 孕妇或哺乳期妇女
- 急性破裂或渗漏的动脉瘤,或外伤引起的血管损伤
- 患者有其他医学或精神问题,研究者认为这些问题使他们无法参与研究。
- 禁用造影剂或抗凝药物
- 凝血障碍或出血障碍
- 活动性全身或局部腹股沟感染
- 肠系膜下动脉不可或缺
- 结缔组织病(例如 马凡氏综合症)
- 肌酐水平 > 1.7 毫克/分升
- 植入部位的血栓
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:非随机化
- 介入模型:单组作业
- 屏蔽:无(打开标签)
研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
|---|---|
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死亡率
大体时间:一年
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一年
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主要并发症:心肌梗塞、冠状动脉介入治疗、呼吸衰竭、动脉瘤破裂、肾衰竭、中风或死亡
大体时间:一年
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一年
|
次要结果测量
结果测量 |
大体时间 |
|---|---|
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交付和覆膜支架部署成功
大体时间:1个月、6个月、12个月
|
1个月、6个月、12个月
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与血管壁并置
大体时间:1个月、6个月、12个月
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1个月、6个月、12个月
|
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设备完整性
大体时间:1个月、6个月、12个月
|
1个月、6个月、12个月
|
|
覆膜支架通畅、闭塞(非通畅)和迁移
大体时间:1个月、6个月、12个月
|
1个月、6个月、12个月
|
|
手术时间和住院时间
大体时间:1个月、6个月、12个月
|
1个月、6个月、12个月
|
|
在重症监护室度过的时间
大体时间:1个月、6个月、12个月
|
1个月、6个月、12个月
|
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失血量和需要用储存的血液输血的病人数
大体时间:1个月、6个月、12个月
|
1个月、6个月、12个月
|
合作者和调查者
合作者
出版物和有用的链接
一般刊物
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- Palmaz JC, Sibbitt RR, Tio FO, Reuter SR, Peters JE, Garcia F. Expandable intraluminal vascular graft: a feasibility study. Surgery. 1986 Feb;99(2):199-205.
- Palmaz JC, Parodi JC, Barone HD, et al. Transluminal bypass of experimental abdominal aortic aneurysm. RSNA 1990; 177(s):202.
- Yoshioka T, Wright KC, Wallace S, Lawrence DD Jr, Gianturco C. Self-expanding endovascular graft: an experimental study in dogs. AJR Am J Roentgenol. 1988 Oct;151(4):673-6. doi: 10.2214/ajr.151.4.673.
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- Chuter TA, Green RM, Ouriel K, Fiore WM, DeWeese JA. Transfemoral endovascular aortic graft placement. J Vasc Surg. 1993 Aug;18(2):185-95; discussion 195-7. doi: 10.1067/mva.1993.42587.
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- Hagen B, Harnoss BM, Trabhardt S, Ladeburg M, Fuhrmann H, Franck C. Self-expandable macroporous nitinol stents for transfemoral exclusion of aortic aneurysms in dogs: preliminary results. Cardiovasc Intervent Radiol. 1993 Nov-Dec;16(6):339-42. doi: 10.1007/BF02603137.
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- May J, White G, Waugh R, Yu W, Harris J. Transluminal placement of a prosthetic graft-stent device for treatment of subclavian artery aneurysm. J Vasc Surg. 1993 Dec;18(6):1056-9.
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- Ahn R. Presented at VII International Congress on Endovascular Interventions, Phoenix, Arizona, February 1994.
- May J, White GH. Presented at III International Endovascular Surgery Symposium, Sydney, Australia, November 1993 and VII International Congress on Endovascular Interventions, Phoenix, Arizona, February 1994.
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研究记录日期
研究主要日期
学习开始
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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