Paired head and c-spine CT scans had low yield for detecting clinically significant injury (CSI) on both, 0.5%.  This suggests a selective scanning, rather than a shotgun approach, may be better.

For adults with varied acute illnesses, use of supplemental oxygen in patients with room air SpO2 of 94% or greater was associated with increased short and longterm mortality.

We have much room for improvement in educating patients with mild traumatic brain injury (TBI) who are discharged from the ED on the importance of outpatient follow up.

Whole body CT vs selective CT in children with trauma did not result in mortality benefit.  This large, retrospective study with propensity matching suggested that any additional injuries found on pan-CT may have been either not life-threatening or did not change management to produce mortality benefit.

Pediatric patients with isolated costal margin tenderness (CMT) on exam are very unlikely to have underlying intra-abdominal injury and also unlikely to benefit from CT.  But make sure there are no other signs of abdominal injury.

For trauma (or any) patients arriving in extremis, the IO route was fast and had a very high success rate compared to peripheral IV or central line.

An artificial neural network used temporal and weather data to accurately predict trauma volume and severity.

In pediatric patients with blunt traumatic head injury, none had clinically important traumatic brain injury or significant injury on CT if the only symptom was vomiting <3 times.  It was still extremely low if isolated vomiting 3 or more times: 3/1000 for ciTBI and 6/1000 for TBI-CT.

Simon Carley, with the St. Emlyns blog wrote a very helpful post, fully referenced, that you will want to read in detail.  Good stuff.

The NEXUS II Pediatric Head CT Decision Instrument was 100% sensitive for ruling out children with a neurosurgical outcome, but it was relatively small and had wide confidence intervals.  I don't think this will supplant PECARN.