Incidence of intra-abdominal injury after blunt abdominal trauma with negative CT scan: a systematic review and meta-analysis

In patients with blunt abdominal trauma and a negative CT scan, the incidence of intra-abdominal injury is exceedingly low (0.34%). These findings provide robust, contemporary evidence to inform clinical decisions regarding the need for in-hospital observation and support consideration of early discharge in most patients, while recognizing that individuals with high-risk clinical features may warrant closer monitoring.