Sgarbossa criteria can help interpret the ECG for STEMI in the setting of LBBB.  Subsequent modifications make it even more accurate.

The San Francisco Syncope Rule could safely reduce almost one-quarter of admissions for syncope in this cohort.  But later studies found the diagnostic performance to be lower.

A pause in compressions to give rescue breaths made no impact on survival to hospital discharge.

For analgesia, there was no difference in 10mg, 15mg, and 30mg of IV ketorolac.

Acutely dyspneic patients in the ED can be more accurately diagnosed by adding BNP to clinical judgment.

Patients with a HEART score of 0-3 were very low risk for MACE (1.7%) and may be considered safe for early ED discharge.

DANAMI-2 showed that if door to needle time was <120 minutes, transfer for PCI was superior to on-site fibrinolysis for acute MI.

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Patients with penetrating torso trauma do better when volume expansion is delayed until the time of definitive operative repair, rather than trying to give immediate prehospital volume to normalize BP.