1. No category

ECMO
ELSA Monitor
®
Extracorporeal Life Support Assurance Monitor
The new Transonic ELSA® (Extracorporeal Life Support Assurance)
Monitor measures Oxygenator Blood Volume, Delivered Blood
Flow and Recirculation during veno-venous extracorporeal
membrane oxygenation (VV ECMO).
ELSA® measurements confirm that the ECMO circuit is
functioning as intended. They are used to guide the positioning
of the dual lumen catheter in order to optimally balance Flow
with Recirculation so that the patient receives the oxygenation
necessary to maintain life and promote recovery.
ELSA Cover sheet (ELS-200-fly) RevA 2013
ECMO
When critically ill patients’ lives rest on accurate assessments
of their conditions and their individual responses to
treatment, the new Transonic bedside ELSA® (Extracorporeal
Life Support Assurance) 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.1
To generate ELSA® measurements, flow dilution sensors
are simply clipped onto the supply and return lines of a
VV ECMO circuit. Once the software program is opened
on the ELSA Monitor, on-screen instructions are displayed.
Actual delivered blood flow measurements are immediately
available. A small saline bolus is used to calculate either
percent recirculation or oxygenator blood volume.
Percent recirculation provides the physician with real-time
information about the patient’s response to treatment.
Oxygenator blood volume insures adequate anticoagulation
to maintain oxygenator functionality.
Fig. 1: ELSA Monitor screen displaying indicator dilution curve
that registers 0% Recirculation.
References:
[1] Clements D et al,“Measurements of recirculation during neonatal veno-venous extracorporeal
membrane oxygenation: clinical application of the ultrasound dilution technique”. J Extra
Corpor Technol 2008 Sep;40(3):184-7 (Transonic Reference # ELS9680AH)
[2] van Heijst AF et al, “Recirculation in double lumen catheter veno-venous extracorporeal
Fig. 2: ELSA Monitor screen displaying indicator dilution curve
that registers small (11%) Recirculation.
membrane oxygenation measured by an ultrasound dilution technique”. ASAIO J.
2001;47(4):372-6. (Transonic Reference # ELS9766AH)
[3] Körver EP e al, “Quantification of recirculation as an adjuvant to transthoracic
echocardiography for optimization of dual-lumen extracorporeal life support”. Intensive Care
Med 2012;38(5):906-9. (Transonic Reference # ELS9679AH)
[4] Darling EM et al, “Use of dilutional ultrasound monitoring to detect changes in
recirculation during venovenous extracorporeal membrane oxygenation in swine”. ASAIO J
2006;52(5):522-4. (Transonic Reference # ELS7309V)
[5] Walker J et al, “The potential of accurate SvO2 monitoring during venovenous extracorporeal
membrane oxygenation: an in vitro model using ultrasound dilution”. Perfusion
2007;22(4):239-44. (Transonic Reference # ELS7584A)
[6] Melchior R et al, “A novel method of measuring cardiac output in infants following
extracorporeal procedures: preliminary validation in a swine model”. Perfusion
2005;20(6):323-7. (Transonic Reference # ELS7177V)
Fig. 3: ELSA Monitor screen that displays indicator dilution curve
that registers large (45%) Recirculation.
Transonic Systems Inc., global manufacturer of biomedical flow measurement equipment,
sells “gold standard” ultrasound transit-time flowmeters, hemodialysis, endovascular and
laser Doppler perfusion monitors worldwide to surgeons, nephrologists, interventional
radiologists, researchers and original equipment manufacturers (OEMs).
www.transonic.com
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info@transonic.jp