Can J Emerg Med
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Meta Analysis
The diagnostic accuracy of a point-of-care ultrasound protocol for shock etiology: A systematic review and meta-analysis.
The aim of this study was to perform a systematic review and meta-analysis of the diagnostic accuracy of a point-of-care ultrasound exam for undifferentiated shock in patients presenting to the emergency department. ⋯ The rapid ultrasound for shock and hypotension (RUSH) exam performs better when used to rule in causes of shock, rather than to definitively exclude specific etiologies. The negative likelihood ratios of the exam by subtype suggest that it most accurately rules out obstructive shock.