6% hydroxyethyl starch 130/0.4 and 4% succinylated gelatine interfere with refractometry in dogs with haemorrhagic shock

E. Yam; C.J. Boyd; G. Hosgood; M.A. Claus; A.L. Raisis; C.R. Sharp; L. Smart

doi:10.1016/j.vaa.2019.05.007

$6% hydroxyethyl starch 130/0.4 and 4% succinylated gelatine interfere with refractometry in dogs with haemorrhagic shock$

Journal article

Peer reviewed

6% hydroxyethyl starch 130/0.4 and 4% succinylated gelatine interfere with refractometry in dogs with haemorrhagic shock

E. Yam, C.J. Boyd, G. Hosgood, M.A. Claus, A.L. Raisis, C.R. Sharp and L. Smart

Veterinary Anaesthesia and Analgesia, Vol.46(5), pp.579-586

2019

DOI: https://doi.org/10.1016/j.vaa.2019.05.007

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Abstract

Objective To determine if low molecular weight synthetic colloid fluids administered to dogs interfere with refractometric estimates of total plasma protein (TPPr) and urine osmolality (UOsm). Study design Experimental study Animals Eighteen healthy greyhound dogs Methods Anaesthetized greyhounds subjected to haemorrhage for 60 minutes were given 80 mL kg-1 of Plasmalyte-148 (CRYST), or 20 mL kg-1 of hydroxyethyl starch 130/0.4 (HES) or succinylated gelatine (GELO) (n=6 per group) intravenously over 20 minutes. Refractometric (TPPr) and biuret total plasma protein (TPPb) were measured before haemorrhage (Baseline), at end of shock (Shock), immediately (T20), then 40 minutes (T60), 100 minutes (T120) and 160 minutes (T180) after fluid administration. Urine specific gravity (USG) and osmolality (UOsm) were measured at all time points except T20. Estimated UOsm was calculated from USG. Bias and limits of agreement (LOA) for TPPr versus TPPb, and eUOsm versus UOsm were calculated at each time point. Results For dogs given CRYST and GELO, median TPPr and TPPb decreased in parallel, with a small consistent TPP bias (CRYST range of bias, 0.38−0.67 g dL-1; GELO range of bias, 0.42−0.58 g dL-1). Dogs given HES showed divergence between median TPPr and TPPb after T20, with a peak bias at T20 of 1.62 g dL-1 (LOA 1.29−1.95). Dogs given HES and GELO had markedly increased USG (HES peak median USG at T180 of 1.119, [Q1−Q3 1.103−1.122]; GELO peak median USG at T120 of 1.114, [Q1−Q3 1.082−1.119]), with large increases in bias between eUOsm and UOsm (HES peak bias at T60, 2995 mOsm kg-1, [LOA 2032−3958 mOsm kg-1]; GELO peak bias at T120, 2465 mOsm kg-1, [LOA 940−3990 mOsm kg-1]). Conclusions Administration of HES and GELO to dogs with haemorrhagic shock interferes with refractometric measurements for at least 3 hours after administration.

Details

Title: 6% hydroxyethyl starch 130/0.4 and 4% succinylated gelatine interfere with refractometry in dogs with haemorrhagic shock
Authors/Creators: E. Yam (Author/Creator) - Murdoch University
C.J. Boyd (Author/Creator) - Murdoch University
G. Hosgood (Author/Creator) - Murdoch University
M.A. Claus (Author/Creator) - Murdoch University
A.L. Raisis (Author/Creator) - Murdoch University
C.R. Sharp (Author/Creator) - Murdoch University
L. Smart (Author/Creator) - Murdoch University
Publication Details: Veterinary Anaesthesia and Analgesia, Vol.46(5), pp.579-586
Publisher: Elsevier Ltd.
Identifiers: 991005540040007891
Copyright: © 2019 Elsevier Ltd on behalf of Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and Analgesia
Murdoch Affiliation: School of Veterinary and Life Sciences
Language: English
Resource Type: Journal article

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