Abstract
This is a single-center retrospective study to summarize clinical outcomes of patients requiring surgical continuous-flow left ventricular assist device (HeartMate II) exchange. The patients who underwent HeartMate II exchange were divided into two groups either via a subcostal approach (SC group) or a full sternotomy (FS group). The exclusion criteria of a subcostal approach for device exchange included the presence of outflow graft obstruction, and/or the need for concomitant cardiac procedures. Among 277 consecutive patients who underwent HeartMate II implantation from July 2008 to December 2015, 25 patients (9.0%) required device exchange (SC group; N = 13, FS group; N = 12). The SC group, compared to the FS group, had a shorter operative time (200.6 ± 31.4 min vs 534.2 ± 123.9 min; P < 0.001), shorter cardiopulmonary bypass time (33.1 ± 22.0 min vs 151.5 ± 53.1 min; P < 0.001), fewer blood transfusion (0.31 ± 0.48 units vs 4.67 ± 3.65 units; P = 0.002). The SC group had lower incidence of postoperative prolonged intubation (> 24 h) (7.7% vs 90.9%, P < 0.001), tracheostomy (0.0% vs 41.7%, P = 0.015), acute kidney injury requiring dialysis (0.0% vs 33.3%, P = 0.039). In-hospital mortality was 0.0% (0/13) in the SC group and 16.7% (2/12) in the FS group (P = 0.220). In conclusion, a subcostal approach was associated with shorter operative time, fewer blood transfusions, and less postoperative complications, compared to full sternotomy. A subcostal approach, if feasible, is preferred for HeartMate II device exchange.
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08 July 2020
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Dr Valluvan Jeevanandam discloses that he receives consultant fees from Abbott. Dr Nir Uriel discloses that he receives consultant fees and grant supports from Abbott, and Medtronic.
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Kitahara, H., Raikhelkar, J., Kim, G. et al. A subcostal approach is favorable compared to sternotomy for left ventricular assist device exchange field of research: artificial heart (clinical). J Artif Organs 22, 181–187 (2019). https://doi.org/10.1007/s10047-019-01102-w
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DOI: https://doi.org/10.1007/s10047-019-01102-w