Publication: Close correlation between arterial and central venous lactate concentrations of children in shock: A cross-sectional study
Issued Date
2017-09-01
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ISSN
18733492
00098981
00098981
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2-s2.0-85025067900
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Mahidol University
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SCOPUS
Bibliographic Citation
Clinica Chimica Acta. Vol.472, (2017), 86-89
Suggested Citation
Suwannee Phumeetham, Nujaree Kaowchaweerattanachart, Suvikrom Law, Prakul Chanthong, Busadee Pratumvinit Close correlation between arterial and central venous lactate concentrations of children in shock: A cross-sectional study. Clinica Chimica Acta. Vol.472, (2017), 86-89. doi:10.1016/j.cca.2017.07.023 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/41787
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Title
Close correlation between arterial and central venous lactate concentrations of children in shock: A cross-sectional study
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Abstract
© 2017 Elsevier B.V. Background Arterial lactate (aLact) has been widely used to guide therapeutic decisions in children with shock. We evaluated the feasibility of central venous lactate (cvLact) in assessing aLact among children with shock. Methods Pairs of arterial and central venous samples for lactate concentrations were collected simultaneously during the shock and hemodynamically stable states. The results were analyzed by using a Cobas 8000 analyzer. Results Sixty-four blood paired samples were collected from 48 patients. The overall correlation between central venous and arterial lactate concentrations was r = 0.962, p < 0.0001, r2 = 0.965. The regression equation was aLact = (0.978 × cvLact) − 0.137. A similar correlation was found between central venous and arterial lactate concentrations during the states of shock and stable hemodynamics (r = 0.970, p < 0.0001, r2 = 0.966 and r = 0.935, p < 0.0001, r2 = 0.962, respectively). The mean difference between central venous and arterial lactate concentrations was 0.20 mmol/l (95% CI: 0.08 to 0.32) and the limits of agreement were − 0.74 mmol/l (95% CI: − 0.94 to − 0.53) and 1.13 (95% CI: 0.93 to 1.34). Conclusions In situations of shock where a central venous catheter is required, samples from a central vein present an acceptable and timely alternative to arterial samples for quantitating lactate concentrations.