Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-10328
Knirsch, W; Kretschmar, O; Tomaske, M; Stutz, K; Nagdyman, N; Balmer, C; Schmitz, A; Berger, F; Bauersfeld, U; Weiss, M (2008). Comparison of cardiac output measurement using the CardioQP oesophageal Doppler with cardiac output measurement using thermodilution technique in children during heart catheterisation. Anaesthesia, 63(8):851-855.
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The minimally invasive CardioQP oesophageal Doppler probe estimates cardiac output by measuring blood flow velocity in the descending aorta. Individual variables to enter are patient's age, weight and height. We measured cardiac output simultaneously with CardioQP and pulmonary artery catheter thermodilution techniques during heart catheterisation in 40 paediatric patients with congenital heart defects. Median [range] age was 8.2 years [0.5-16.7 years], cardiac output values measured by thermodilution and CardioQP were 3.6 l.min(-1) [1.2-7.1 l.min(-1)] and 3.0 l.min(-1) [0.7-6.7 l.min(-1)], respectively. These values showed only moderate correlation (r = 0.809; p < 0.0001). Bias and precision were 0.66 l.min(-1) and 1.79 l.min(-1) (95% limits of agreement: -1.13 to +2.45 l.min(-1)). Based on our preliminary experience, cardiac output values measured by CardioQP in children do not reliably represent cardiac output values compared with the thermodilution technique. We suggest measurement of individual aortic diameter to improve performance of the CardioQP.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Children's Hospital Zurich > Clinic for Surgery|
04 Faculty of Medicine > University Children's Hospital Zurich > Medical Clinic
|DDC:||610 Medicine & health|
|Deposited On:||19 Jan 2009 22:36|
|Last Modified:||23 Nov 2012 13:39|
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