Professionalisation of emergency medicine is currently booming. In order to offer the best care, emergency physician can refer to several new studies : 1) in a cerebral stroke, the 0° head position doesn't offer any benefit ; 2) hyperoxygenation in acute patients could raise mortality ; 3) epinephrine in prehospital cardiac arrest favors return of spontaneous circulation but worsens the neurological prognosis ; 4) systematic cross-checking reduces the risk of adverse events in the emergency department ; 5) ultrasensitive troponins better detect myocardic events, but raises the number of unusefull invasive procedures and 6) combined pre-test probability score and D-dimers potentially allows to rule out aortic dissection.