The first-ever AHA/ACC clinical practice guideline on acute pulmonary embolism drops a new A-to-E severity classification. Here’s what emergency physicians need to know...

Théodore Tuffier (1857–1929): Paris surgeon and innovator; thoracic/cardiac pioneer, early open-chest massage, valve experiments, spinal anaesthesia and Tuffier’s line.

Mark M. Ravitch, pioneering pediatric surgeon, innovator of the Ravitch procedure, stapling, intussusception care, and Cantrell’s sequence.

Norman Barrett (1903–1979), thoracic surgeon, pioneer of oesophageal surgery, first repair of Boerhaave’s syndrome, and namesake of Barrett’s oesophagus.

Pioneer of the Allen test and anticoagulant therapy, Edgar V. Allen (1900–1961) advanced vascular medicine with key insights into dicumarol use and lipedema

Allen Test: a bedside exam assessing hand arterial flow via radial/ulnar patency; used before ABG, cannulation, or radial artery harvest.

Emergency procedure, instructions and discussion: Pericardiocentesis. One of the most difficult and risky but life-saving emergency procedures

Emergency Procedure: Pericardiocentesis. one of the most difficult and risky emergency procedures, but one you already have the ultrasound and line skills to perform well.

Ivor Lewis (1895–1982) was a Welsh surgeon. Eponymously remembered for 1946 description of Ivor Lewis Oesophagectomy

Evaluation, diagnosis and management options for unilateral and bilateral Sternoclavicular Joint Dislocation (SCJD)

Cath lab activation for a 65yo male with sudden onset central crushing chest pain and some lower back pain with a STEMI pattern on ECG.

Clevidipine is a drug used as an infusion for severe hypertension or patients who require narrow blood pressure parameters.