Perioperative interventions, targeted to increase global blood flow defined by explicit measured goals, reduce postoperative complications. Consequently, reliable non-invasive estimation of the cardiac output could have far-reaching benefit.
This study compared a non-invasive Doppler device - the ultrasonic cardiac output monitor (USCOM) - with the oesophageal Doppler monitor (ODM), on 25 patients during major abdominal surgery. Stroke volume was determined by USCOM (SVUSCOM) and ODM (SVODM) pre and post fluid challenges.
A ≥ 10% change (Δ) SVUSCOM had a sensitivity of 94% and specificity of 88% to detect a ≥ 10% Δ SVODM; the area under the receiver operating curve was 0.94 (95% CI 0.90-0.99). Concordance was 98%, using an exclusion zone of <10% Δ SVODM. 135 measurements gave median SVUSCOM 80 ml (interquartile range 65-93 ml) and SVODM 86 ml (69-100 ml); mean bias was 5.9 ml (limits of agreement -20 to +30 ml) and percentage error 30%.
Following fluid challenges SVUSCOM showed good concordance and accurately discriminated a change ≥10% in SVODM.
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 July 2016.
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#15,090,466
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Outputs from Journal of the Intensive Care Society
#402
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#141,220
of 291,142 outputs
Outputs of similar age from Journal of the Intensive Care Society
#15
of 19 outputs
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