Title: Rapid Ultrasound in Shock (RUSH) Velocity-Time Integral
Authors: Blanco P, Aguiar FM, Blaivas M
Date: 2015
Format: Technical Innovation (Correspondence)
The authors propose adding the calculation of velocity-time integral (VTI) from the left ventricular outflow tract (LVOT) in patients undergoing ResUS with the RUSH protocol.
In the article, the authors review:
- How VTI is measured
- How to interpret VTI in various physiologic states
- Feasibility of integrating VTI measures into RUSH protocol
- Anatomic considerations of VTI (LVOT pathology, measures from different sites)
Commentary: Few studies have demonstrated the validity of the RUSH exam (less than 5 studies to date?) let alone VTI in critically ill patients. While likely not time consuming or inaccurate in the hands of experts, is the VTI truly generalizable? Key question remains whether either of these measures (RUSH and VTI) effects patients outcomes.
Reference:
Blanco P, Aguiar FM, Blaivas M. Rapid Ultrasound in Shock (RUSH) Velocity-Time Integral: A Proposal to Expand the RUSH Protocol. J Ultrasound Med. 2015 Sep;34(9):1691-700.
Blanco P, Aguiar FM, Blaivas M. Rapid Ultrasound in Shock (RUSH) Velocity-Time Integral: A Proposal to Expand the RUSH Protocol. J Ultrasound Med. 2015 Sep;34(9):1691-700.
Posted by: A Adedipe, MD
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