TREO Aortic Endograft Demonstrates Significant Aneurysmal Sac Shrinkage

Area of Science:

• Vascular Surgery
• Medical Devices
• Aortic Aneurysm Treatment

Background:

• Aneurysmal sac shrinkage is a key indicator of successful endovascular aortic repair (EVAR).
• The TREO endograft is under evaluation for EVAR, with preliminary data suggesting high success rates.
• This study aims to specifically evaluate the sac shrinkage associated with the TREO endograft.

Purpose of the Study:

• To evaluate the sac shrinkage of the TREO endograft in patients undergoing EVAR.
• To compare the sac shrinkage rate of the TREO endograft with non-TREO endografts.
• To assess the complication profile associated with TREO endograft use.

Main Methods:

• Retrospective analysis of EVAR procedures using the TREO graft at a single institution over one year.
• Comparison of sac size change and shrinkage rate (mm/mo) between TREO and matched non-TREO grafts.
• Exclusion of traumatic or emergent cases; matching of non-TREO grafts for anatomical indications.

Main Results:

• The TREO group exhibited a significantly greater aneurysm sac shrinkage rate (0.484 mm/mo) compared to the non-TREO group (0.018 mm/mo).
• Average total sac shrinkage was also significantly greater in the TREO group (-0.688 vs. 12.00).
• No significant difference in the composite complication profile (stroke, MI, death, respiratory complications) was observed between the groups.

Conclusions:

• TREO aortic endografts demonstrate a significant advantage in promoting aneurysm sac shrinkage post-EVAR.
• The TREO graft offers comparable safety profiles to other endografts, with minimal complications.
• This study contributes evidence supporting the use of TREO grafts in EVAR procedures.