Background: Arterial axillosubclavian injuries (ASIs) are currently managed with open repair (OR) and endovascular stenting (ES). The long-term prognosis of patients with these and associated brachial plexus injuries is poorly understood. We hypothesize that OR and ES for ASI have similar long-term patency rates and that brachial plexus injuries would confer high long-term morbidity.
Methods: All patients at a level-1 trauma center who underwent procedures for ASI over a 12-year period (2010 to 2022) were identified. Long-term outcomes of patency rates, types of reintervention, rates of brachial plexus injury, and functional outcomes were then investigated.
Results: Thirty-three patients underwent operations for ASI. OR was performed in 72.7% (n = 24) and ES in 27.3% (n = 9). ES patency was 85.7% (n = 6/7) and OR patency was 75% (n = 12/16), at a median follow-up of 20 and 5.5 months respectively. In subclavian artery injuries, ES patency was 100% (n = 4/4) and OR patency was 50% (n = 4/8) at a median follow-up of 24 and 12 months respectively. Long-term patency rates were similar between OR and ES (P = 1.0). Brachial plexus injuries occurred in 42.9% (n = 12/28) of patients. Ninety percent (n = 9/10) of patients with brachial plexus injuries who were followed postdischarge had persistent motor deficits at median follow-up of 12 months, occurring at significantly higher rates in patients with brachial plexus injuries (90%) compared to those without brachial plexus injuries (14.3%) (P = 0.0005).
Conclusions: Multiyear follow-up demonstrates similar OR and ES patency rates for ASI. Subclavian ES patency was excellent (100%) and prosthetic subclavian bypass patency was poor (25%). brachial plexus injuries were common (42.9%) and devastating, with a significant portion of patients having persistent limb motor deficits (45.8%) on long-term follow-up. Algorithms to optimize brachial plexus injuries management for patients with ASI are high-yield, and likely to influence long-term outcomes more than the technique of initial revascularization.
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