Abstract
IntroductionThe necessity of angioembolization for all splenic pseudoaneurysms (PSAs) is unknown after blunt trauma. We compared the outcomes of patients with PSAs managed with splenic artery embolization (EMBO) versus no embolization (NO-EMBO). MethodsWe retrospectively reviewed all patients with blunt splenic trauma and PSA on initial computed tomography scan admitted to an academic, urban, Level I trauma center from 2016 to 2021. Patients who had emergent splenectomy or died before discharge were excluded. Demographics, injury and computed tomography characteristics, and details regarding angiography, if pursued, were collected. The primary outcome was failure of nonoperative management (FNOM), as defined by need for delayed splenectomy for the EMBO group versus delayed splenectomy or embolization for the NO-EMBO group. ResultsOne hundred and fifty-six patients were in the final study population, of which 96 (61.5%) were in the EMBO group and 60 (38.5%) were in the NO-EMBO group. Patient demographics and mechanism of injury were similar between the two cohorts. The two cohorts had similar imaging findings, however, EMBO patients had more compartments with hemoperitoneum (2 versus 1, P < 0.01). Patients who underwent embolization had a lower FNOM rate (3.1% versus 13.3%, P = 0.02). ConclusionsSplenic artery embolization in the setting of PSA is associated with lower rates of FNOM versus nonembolization. It is unclear if addressing the PSA itself with embolization drives the decreased FNOM rate.
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