Pilot Study of IVUS Imaging During Endovascular Interventions of Failing Hemodialysis Access Grafts
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Define IVUS workflow
研究概览
简要总结
This pilot study will provide data to aid in the planning of a follow-up multi-center randomized, controlled trial (RCT). As such, the sample size for this pilot is not driven by formal statistical hypothesis testing. Rather, the sample size of 100 patients (50 per arm) was derived in consultation with the study PI and Co-PI who are experts in vascular surgery, and in particular, the field of hemodialysis access interventions. The results of this pilot study will provide the data that is necessary for generation of specific hypotheses that can then be formally tested in the follow-up RCT
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patient must be > 18 and < 85 years of age
- •Patient or legally authorized representative must be willing to participate and able to understand, read, and sign the informed consent document before the planned procedure
- •Eligible for de-clot procedure or evaluation of slow flow for a failing hemodialysis graft that previously provided access for at least 1 successful hemodialysis session
排除标准
- •Patient or legally authorized representative cannot or will not provide written informed consent
- •Known metal allergy precluding endovascular stent implantation
- •Known reaction or sensitivity to iodinated contrast that cannot be pretreated
- •Patients who are pregnant or lactating
- •Patients with scheduled kidney transplant within the next 6 months
- •Patients scheduled to switch to peritoneal dialysis within the next 6 months
- •Patients with life expectancy of less than 6 months
- •Participation in any other clinical research study that would interfere with the patient's participation in this study
- •Any concurrent disease or condition that, in the opinion of the investigator, would make the patient unsuitable for participation in the study
结局指标
主要结局
Define IVUS workflow
时间窗: Day 0
Define IVUS workflow for AV graft evaluation during interventions for access site failure
Re-Intervention Control vs. Test
时间窗: 6 months
Difference in time (measured in days) to AV graft failure after index intervention guided by DSA in the absence (control group) or presence of IVUS guidance (test group), assessed through 6 months post-index procedure
Evaluate ability of IVUS in AV Grafts
时间窗: Day 0
Evaluate the ability of IVUS to identify targets for therapy in poorly functioning AV grafts that are not identified by DSA
次要结局
- Assess CHROMOFLO in AV grafts(Day 0)
- IVUS vs DSA alone- Decision making(Day 0)
- % patients requiring re-intervention(3 months and 6 months)