Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-24283
Tomaske, M; Knirsch, W; Kretschmar, O; Balmer, C; Woitzek, K; Schmitz, A; Bauersfeld, U; Weiss, M (2009). Evaluation of the Aesculon cardiac output monitor by subxiphoidal Doppler flow measurement in children with congenital heart defects. European Journal of Anaesthesiology, 26(5):412-415.
View at publisher
BACKGROUND AND OBJECTIVE: To evaluate the noninvasive electrical velocimetry (Aesculon) monitor for cardiac output (CO) by subxiphoidal Doppler flow measurement in children. METHODS: CO was determined at the end of diagnostic or interventional cardiac catheterization for congenital heart defects. Standard ECG surface electrodes were attached in a vertical direction to the patients' left middle and lower neck, and lower thorax at the level of the heart and xiphoid process. Aesculon CO data were compared with a simultaneously measured CO by the subxiphoidal Doppler flow measurement technique. For each patient, measurements were repeated three times within 5 min. Whitney U-test, simple regression and Bland-Altman analysis were performed to compare CO values obtained by the two techniques. Data are given as range (median). RESULTS: A total of 36 children aged 5.7 (0.5-16.0) years were investigated. CO values obtained by Aesculon monitor [0.55-5.58 (2.62) l min] and subxiphoidal Doppler flow measurements [0.62-6.27 (3.05) l min] differed significantly between both methods (P = 0.04). Simple regression analysis revealed moderate correlation between CO values obtained from the two techniques (r = 0.5544, P < 0.001). Bias between the two methods was 0.31 l min with a precision of 1.92 l min. CONCLUSION: We conclude that electrical velocimetry using the Aesculon monitor does not reliably reflect absolute CO values as compared with subxiphoidal Doppler flow measurement.
52 downloads since deposited on 01 Dec 2009
10 downloads since 12 months
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Children's Hospital Zurich > Clinic for Surgery|
|Dewey Decimal Classification:||610 Medicine & health|
|Deposited On:||01 Dec 2009 15:25|
|Last Modified:||23 Nov 2012 15:01|
|Publisher:||Lippincott Wiliams & Wilkins|
Users (please log in): suggest update or correction for this item
Repository Staff Only: item control page