Arterial Changes After Vascular Reconstruction Following Decannulation From Extracorporeal Life Support:...

Area of Science:

• Pediatric cardiovascular surgery
• Extracorporeal life support (ECLS)
• Vascular reconstruction outcomes

Background:

• Decannulation from pediatric extracorporeal life support (ECLS) may necessitate arterial reconstruction.
• Limited data exists on the long-term arterial morphology following such reconstructions.
• Understanding these changes is crucial for assessing risks of arterial narrowing and altered blood flow.

Purpose of the Study:

• To characterize the arterial morphology after decannulation from ECLS with arterial reconstruction.
• To identify risk factors associated with adverse morphologic changes.
• To inform long-term risk stratification for ECLS survivors.

Main Methods:

• Retrospective review of pediatric patients undergoing arterial reconstruction after ECLS from 2002-2022.
• Analysis of patient demographics, ECLS indications, reconstruction strategies, and post-decannulation imaging.
• Statistical analysis including univariate and multivariable regression to assess associations with morphologic changes.

Main Results:

• Of 144 carotid and 25 femoral artery reconstructions, 41.0% and 100% had follow-up imaging, respectively.
• Short-term follow-up revealed occlusion or morphologic changes in 42% of carotid and 35% of femoral reconstructions.
• Neonatal age at reconstruction emerged as a significant risk factor for adverse arterial morphologic changes.

Conclusions:

• A significant portion of pediatric patients develop arterial occlusion or morphologic changes after reconstruction post-ECLS.
• Neonatal age is a key risk factor, necessitating careful consideration.
• Long-term imaging surveillance is essential for risk stratification of ECLS survivors, particularly concerning future atherosclerotic disease.