Blunt hollow viscus and mesenteric injury: still underrecognized.

Abstract

Despite the availability of more accurate imaging modalities, specifically multidetector computed tomography (MDCT), the diagnosis of non-ischemic (NI-) and ischemic (I-) blunt hollow viscus and mesenteric injury (BHVMI) remains challenging. We hypothesized that BHVMI can be still missed with newer generations of MDCT and that patients with I-BHVMI have a poorer outcome than those with NI-BHVMI. We performed an eight-year retrospective review at a level 1 trauma center. Ischemic-BHVMI was defined as devascularization confirmed at laparotomy. Non-ischemic-BHVMI included perforation, laceration, and hematoma without devascularization. The sensitivity of each generation of MDCT for BHVMI was calculated. Potential predictors and outcomes of I-BHVMI were compared to the NI-BHVMI group. Of 7,875 blunt trauma patients, 67 patients (0.8 %) were included in the BHVMI group; 13 patients did not have any CT findings suggestive of BHVMI (sensitivity 81 %), and 11 of them underwent surgical intervention without delay (<5 h). Newer generations of MDCT were not associated with higher sensitivity. Patients with I-BHVMI had a significantly higher rate of delayed laparotomy ≥ 12 h (23 % versus 2 %; p = 0.01) and a significantly longer length of hospital stay (median 14 versus 9 days; p = 0.02) than those with NI-BHVMI. Even using an advanced imaging technique, the diagnosis of I-BHVMI can be delayed, with significant negative impact on patient outcome.