Hypoxemia Requiring Venovenous Extracorporeal Membrane Oxygenation after Tricuspid Valvulectomy for Infective Endocarditis.

• TEE is essential in the diagnosis and management of IE related to IVDU. • Tricuspid valvulectomy is performed to manage IVDU-associated IE involving the TV. • Intracardiac shunt is possible if refractory hypoxemia occurs after cardiac surgery.

Critical aortic stenosis.

Unlabelled: A case of a 52-year-old male with ventricular tachycardia and atrial fibrillation associated with aortic stenosis is outlined. Focused cardiac ultrasound images obtained in the emergency department are presented. A discussion of aortic stenosis and emergency ultrasound in the above clinical context is included.

The diagnosis of acute mesenteric ischemia: A systematic review and meta-analysis.

Objectives: Acute mesenteric ischemia is an infrequent cause of abdominal pain in emergency department (ED) patients; however, mortality for this condition is high. Rapid diagnosis and surgery are key to survival, but presenting signs are often vague or variable, and there is no pathognomonic laboratory screening test. A systematic review and meta-analysis of the available literature was performed to determine diagnostic test characteristics of patient symptoms, objective signs, laboratory studies, and diagnostic modalities to help rule in or out the diagnosis of acute mesenteric ischemia in the ED.