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JOURNAL ARTICLE
MULTICENTER STUDY
Delayed splenic hemorrhage: Myth or mystery? A Western Trauma Association multicenter study.
American Journal of Surgery 2019 September
BACKGROUND: Multi-detector computed tomography imaging is now the reference standard for identifying solid organ injuries, with a high sensitivity and specificity. However, delayed splenic hemorrhage (DSH), defined as no identified injury to the spleen on the index scan but delayed bleeding from a splenic injury, has been reported. We hypothesized that the occurrence of DSH would be minimized by utilization of modern imaging techniques.
METHODS: Data was retrospectively collected from 2006 to 2016 in 12 adult Level I and II trauma centers. All patients had an initial CT scan demonstrating no splenic injury but subsequently were diagnosed with splenic bleeding. Demographic, injury characteristics, imaging parameters and results, interventions and outcomes were collected.
RESULTS: Of 6867 patients with splenic injuries, 32 cases (0.4%) of blunt splenic hemorrage were identified. Patients were primarily male, had blunt trauma, severely injured (ISS 32 (9-57) and with associated injuries. Injuries of all grades were identified up to 16 days following admission. Overall, half of patients required splenectomy. All index images were obtained using multi-detector CT (16-320 slice). Secondary review of imaging by two trauma radiologists judged 72% (n = 23) of scans as suboptimal. This was due to poor scan quality primary from artifact(23), single phase contrast imaging (16), and/or poor contrast bolus timing or volume (6). Notably, only 28% of scans in patients with DSH were performed with optimal scanning techniques.
CONCLUSION: This is the largest reported series of DSH in the era of modern imaging. Although the incidence of DSH is low, it still occurs despite the use of multi-detector imaging and when present, is associated with a high rate of splenectomy. Most cases of DSH can be attributed to missed diagnosis from suboptimal index imaging and ultimately be avoided.
METHODS: Data was retrospectively collected from 2006 to 2016 in 12 adult Level I and II trauma centers. All patients had an initial CT scan demonstrating no splenic injury but subsequently were diagnosed with splenic bleeding. Demographic, injury characteristics, imaging parameters and results, interventions and outcomes were collected.
RESULTS: Of 6867 patients with splenic injuries, 32 cases (0.4%) of blunt splenic hemorrage were identified. Patients were primarily male, had blunt trauma, severely injured (ISS 32 (9-57) and with associated injuries. Injuries of all grades were identified up to 16 days following admission. Overall, half of patients required splenectomy. All index images were obtained using multi-detector CT (16-320 slice). Secondary review of imaging by two trauma radiologists judged 72% (n = 23) of scans as suboptimal. This was due to poor scan quality primary from artifact(23), single phase contrast imaging (16), and/or poor contrast bolus timing or volume (6). Notably, only 28% of scans in patients with DSH were performed with optimal scanning techniques.
CONCLUSION: This is the largest reported series of DSH in the era of modern imaging. Although the incidence of DSH is low, it still occurs despite the use of multi-detector imaging and when present, is associated with a high rate of splenectomy. Most cases of DSH can be attributed to missed diagnosis from suboptimal index imaging and ultimately be avoided.
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