Scholarlink

<p>Chimney endovascular aneurysm repair (ch-EVAR) is an alternative endovascular option for complex aortic pathologies. The purpose of this study is to analyze long-term results of renal chimney grafts in juxtarenal aortic aneurysms. The medical records of patients who underwent ch-EVAR repair between December 2011 and December 2017 were examined. Twenty EVAR procedures were performed. The mean age was 70.5 years (min-max 53-81). A total of 28 chimney grafts were deployed. No kidney injury developed in 16 patients in postoperative follow-up. Six renal chimney grafts occluded. Median follow-up was 52.5 months (IQR: 16.8-94.3). Postoperative aneurysm diameter was significantly reduced. (p&lt;0.001). Mean diameter decrease was 11.7 mm. Overall survival was 40% at 5 years and 18% at 10 years. The estimated primary graft patency was 74.5% at 5 years. The estimated 10-year graft patency was&#xa0;67.1% for right renal chimney grafts and 83.0% for left renal chimney grafts. ch-EVAR was associated with high technical success, effective aneurysm sac regression, and acceptable long-term renal chimney graft patency in selected patients with juxtarenal AAA. However, these findings should be interpreted cautiously because of the small sample size, device heterogeneity, and retrospective design. Larger comparative studies with standardized anatomical and perioperative data are needed to clarify the long-term durability of renal chimney grafts.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Long-term Results of Renal Chimney Grafts In Juxtarenal Abdominal Aortic Aneurysms

  • 期刊论文

  • 发表日期：

    2026年6月26日

查看全文
  • Ahmet Daylan,
  • Emrah Oğuz,
  • Serkan Ertugay,
  • Halil Bozkaya,
  • Mustafa Parıldar,
  • Hakan Posacıoğlu

摘要

Chimney endovascular aneurysm repair (ch-EVAR) is an alternative endovascular option for complex aortic pathologies. The purpose of this study is to analyze long-term results of renal chimney grafts in juxtarenal aortic aneurysms. The medical records of patients who underwent ch-EVAR repair between December 2011 and December 2017 were examined. Twenty EVAR procedures were performed. The mean age was 70.5 years (min-max 53-81). A total of 28 chimney grafts were deployed. No kidney injury developed in 16 patients in postoperative follow-up. Six renal chimney grafts occluded. Median follow-up was 52.5 months (IQR: 16.8-94.3). Postoperative aneurysm diameter was significantly reduced. (p<0.001). Mean diameter decrease was 11.7 mm. Overall survival was 40% at 5 years and 18% at 10 years. The estimated primary graft patency was 74.5% at 5 years. The estimated 10-year graft patency was 67.1% for right renal chimney grafts and 83.0% for left renal chimney grafts. ch-EVAR was associated with high technical success, effective aneurysm sac regression, and acceptable long-term renal chimney graft patency in selected patients with juxtarenal AAA. However, these findings should be interpreted cautiously because of the small sample size, device heterogeneity, and retrospective design. Larger comparative studies with standardized anatomical and perioperative data are needed to clarify the long-term durability of renal chimney grafts.