The relay single-branched stent graft for distal aortic arch repair: mid-term single-center results.

Technical success was achieved in 10 of 11 patients (91%) with no in-hospital mortality.

• 11 consecutive patients underwent elective endovascular repair of distal aortic arch pathologies between February 2021 and September 2023.
• The study was designed as a retrospective observational cohort study.
• Technical success rate was 91% (10/11 patients).
• No in-hospital mortality was recorded.

Device configuration varied between single branch alone and single branch combined with proximal scallop or fenestration.

• 5 patients received single branch alone configuration.
• 6 patients received single branch combined with proximal scallop or fenestration.
• All patients underwent elective repair of distal aortic arch pathologies.
• The Relay™ single-branched stent graft was used in all cases.

Four non-aortic-related deaths were observed during mid-term follow-up.

• Median follow-up was 17 months with a range of 3 to 54 months.
• All four deaths were non-aortic-related.
• No early neurological events were reported in any patient.
• Target vessel patency was preserved in all cases.

Late complications occurred in two patients, both requiring reintervention.

• One patient developed stent-induced new entry at 13 months post-procedure, successfully managed with a distal extension.
• One patient developed retrograde type A dissection at 5 months post-endovascular repair, treated with open aortic arch replacement using a frozen elephant trunk.
• Both reinterventions were reported as successful.
• Late complications occurred in 2 of 11 patients (approximately 18%).

No early neurological events were reported in any of the 11 patients.

• Zero early neurological events were observed across the entire cohort.
• The absence of neurological events was highlighted as a favorable outcome of the single-branched device approach.
• Target vessel patency was preserved in all cases throughout follow-up.
• The authors described neurological outcomes as 'favorable.'