Guide: Why You Need Flow Verification During ECMO

When critically ill patients’ lives rest on accurate assessments of their conditions and their individual responses to treatment, the new Transonic bedside ELSA ICU Monitor provides intensivists with rapid quantitative data throughout the course of life support. This timely data assists the clinician in guiding interventions to minimize recirculation and fully optimize the oxygenation therapy.” Clements D et al, J Extra Corpor Technol 2008 Sep;40(3):184-7.

The ELSA Monitor (Extracorporeal Life Support Assurance) incorporates two of Transonic’s Gold Standard technologies; ultrasound indicator dilution and transit time ultrasound. Both technologies have been significantly documented in an array of publications from around the world and can now provide critical care intensivists with quantitative data at the bedside.

Incorporating transit time ultrasound, the ELSA continues to provide the highest accuracy of flow measurement. Two clamp-on flowsensors are provided for continuous flow measurement that can be used with all ECMO patient populations.  Additional flow measurement capabilities provide critical care teams with extra knowledge to optimize patient management.

Ultrasound indicator dilution technology has been integrated into the ELSA monitor to provide quantitative measurements of recirculation and oxygenator clotting with a single bolus of saline.  ECMO teams will know the exact percentage of recirculation during VV ECMO and be able to trend accordingly throughout an ECMO case. This data allows for improved oxygen delivery from ECMO initiation to decannulation. Utilizing the same technology, perfusionists and ECMO specialists can trend the increase of clot burden within the oxygenator by measuring the Oxygenator Blood Volume (OXBV). As clot begins to form within the oxygenator, the volume that is being perfused decreases, effecting the efficiency of the oxygenator. Incorporating OXBV measurements alongside other critical parameters allows for more strategic oxygenator change outs.

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