Naproxen + placebo was as good as (possibly better than) naproxen plus orphenadrine or naproxen plus methocarbamol for acute low back pain.

For patients on antiplatelet agents with epistaxis, tranexamic acid (TXA)-soaked pledgets were far more effective than lidocaine with epinephrine-soaked pledgets at stopping bleeding within 10 minutes and were better tolerated by patients.

There is no such thing as a "black cloud."  Those who self-identified as a black-cloud were also identified as such by their peers, but a look at the actual PED metrics showed no statistical difference except higher admission rate.  I'm not sure I believe this, but there you go...

Bruising in premobile children means trouble.  The most important take home is: "More than half of premobile infants with initially unexplained bruises were found to be abused."  Bruising before they're cruising needs a workup and DCS referral.

Sonographically occult perineal abscess in children was surprisingly common, 28% (61/217).  More than half had I&D within 4 hours of a "negative" radiology-obtained ultrasound.  Symptoms < 4 days, age < 4 years, and history of MRSA were all associated with false negative ultrasound.

After using ketamine for pediatric procedural sedation, 22% of children experienced negative behavioral symptoms measured 1-2 weeks after ED discharge. The most common symptoms were apathy/withdrawal and separation anxiety. Pre-procedural anxiety was the greatest predictor of negative behavioral changes.

Prophylactic ondansetron given with IV opiates did not decrease the rate of nausea or vomiting.

The primary outcome (quick and sustained headache relief) was achieved in 60% of the IV prochlorperazine + diphenhydramine group vs 31% in the IV hydromorphone group with a NNT of 4. As a result, the study was stopped early.

The Canadian C-spine rule has high sensitivity for c-spine injury and higher specificity than the NEXUS rule.  It allows clinical clearance of more people.

Female surgeons had small but significantly improved 30-day mortality and other surgical outcomes over male surgeons, all other factors being equal.