Clinical Study of a Physician Modified Y-Type Iliac Branch Device (PMYIBD) in the Endovascular Repair of Abdominal Aortic Aneurysms to Preserve the Internal Iliac Artery

Abstract

Objectives:

To report the method and curative effect of using a physician modified Y-type iliac branch device (PMYIBD) to preserve the internal iliac artery during the endovascular repair of abdominal aortic aneurysms.

Methods:

From September 2018 to April 2022, 24 patients with abdominal aortic aneurysms or dissecting aneurysms, including 19 true aneurysms and 5 dissecting aneurysms involving the common iliac artery were treated in our department. The average age was (65.3 ± 7.6) years. All patients underwent preoperative evaluation by enhanced computed tomography. Combined with intraoperative angiography, a Y-type stent graft was prepared during surgery to perform endovascular repair of abdominal aortic aneurysms.

Results:

All operations were successfully completed. The average operative duration was (224.8 ± 44.1) minutes. A total of 24 internal iliac arteries were reconstructed. The average follow-up time was (27.1 ± 13.5) months. During the follow-up, there was no expansion of aneurysm cavity, no endoleak or stent displacement, and no death occurred in all patients.

Discussion:

The physician-modified Y-type iliac branched device (PMYIBD) provides an effective method for full-cavity repair. It has a wide range of indications and convenience. According to follow-up results, the early and mid-term had good curative effects; however, the long-term effects require further follow-up.

Conclusion:

The modified Y-type IBD technique is safe and effective for aortic diseases involving internal iliac artery especially with complex anatomy.

Clinical Impact

It is meaningful to preserve the IIA during EVAR. The use of PMYIBD provides a simple and effective method for the total endovascular repair of aortic diseases involving the IIA. Several advantages such as minimal trauma, low mortality, low complication rates and perfect short- and medium-term effects emerge in clinical practice. PMYIBDs are good choices for clinicians before suitable commercial stents are available in markets.

Keywords

abdominal artery aneurysm abdominal aortic dissection internal iliac artery branch devices

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