Management of splenic trauma: a new CT-guided splenic injury grading system.

The aim of this study was to assess a newly developed computerized tomography (CT)-based splenic injury index in predicting the outcome of splenic injury. Twelve patients with isolated splenic injuries were studied. Splenic parenchymal injury was graded from 1 to 4 based on CT. The splenic injury index was obtained by multiplying the parenchymal score by the volume haemoperitoneum, which was measured on the CT scanner. The 12 patients with CT-proven splenic injuries had a mean injury index of 193.5 +/- 191 (mean +/- s.d.). The 3 patients who failed conservative management had a mean index of 475 +/- 50, compared with an index of 99.5 +/- 100 in the nine managed non-operatively (P less than 0.001). This new CT-based splenic injury index allows morphological assessment of splenic injury and may predict the outcome of splenic trauma.