Background: A subclavian intraaortic balloon pump (SC-IABP) can help to optimize patients with advanced congestive heart failure as a bridge to definitive therapy. We retrospectively reviewed our experience to assess the application and safety of this technique.
Methods: We studied 88 patients with decompensated advanced congestive heart failure who received SC-IABP placement between January 2011 and December 2014. The SC-IABP was placed through a graft in the subclavian artery. The intended therapeutic goals for SC-IABP were bridge to transplant (n = 61), mechanical circulatory support (n = 21), or recovery (n = 6). Success was defined as stroke-free survival, achievement of therapeutic goal, and maintenance or improvement in renal function, hemodynamics, and physical conditioning through ambulation and rehabilitation.
Results: Eighty patients were successfully bridged to the next therapy (transplant 93.4%, mechanical circulatory support 95.3%, recovery 50%). There was no mortality related to SC-IABP placement. Duration of SC-IABP support was 4 to 135 days (median 21). Failure was attributed to escalation of support (n = 5), stroke (n = 2), and sepsis (n = 1). Mean pulmonary artery pressure significantly improved from 33 ± 11 mm Hg to 28 ± 8 mm Hg (p < 0.05). Eighty-four patients (95.5%) ambulated more than 3 times a day. Two-minute step test demonstrated significant improvement, from 50 ± 9 steps to 90 ± 23 steps (n = 16, p < 0.001). Specific complications of SC-IABP included exchange/repositioning (n = 26, 29.5%), subclavian artery thrombosis (n = 1, 1.1%), and reexploration for hematoma (n = 4, 4.5%) and infection (n = 2, 2.3%). No distal thromboembolic events were observed.
Conclusions: The SC-IABP provided excellent hemodynamic support with minimal morbidity and mortality, allowed for extensive rehabilitation, and permitted more than 90% of patients to receive their intended therapy. Therefore, SC-IABP is a compelling bridge device for patients with advanced congestive heart failure.
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