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The osmotic link between hypoglycaemia and hypovolaemia
Söder Hospital, Sweden.
Lund University Hospital, Sweden.
Regional Hospital, Hudiksvall, Sweden.
Söder Hospital, Sweden.
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2008 (English)In: Scandinavian Journal of Clinical and Laboratory Investigation, ISSN 0036-5513, Vol. 68, no 2, 117-122 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: Hypoglycaemia is regularly accompanied by hypovolaemia. To suggest a mechanism for this phenomenon, we reviewed data from eight studies conducted by our group and examined the circumstances under which rebound hypoglycaemia develops after intravenous infusion of glucose solutions.

MATERIAL AND METHODS: Forty healthy volunteers and 40 patients received a total of 122 infusions of glucose solutions at different rates, volumes and concentrations. Plasma glucose and the haemodilution were measured repeatedly during and for at least 2 h after the infusions ended. Glucose kinetics was calculated using a one-compartment turnover model and the plasma volume expansion was estimated from changes in Hb.

RESULTS: A strong linear correlation was found between the glucose level and the plasma volume expansion in all series of experiments (p<0.001). After infusion, there was a risk of hypoglycaemia and hypovolaemia developing in healthy volunteers with a high glucose clearance and when infusing glucose solutions of higher concentrations than 2.5 %. Few and mild hypoglycaemic events occurred in patients with insulin resistance, such as in diabetics and in those undergoing surgery. The immediate linear relationship between hypoglycaemia and hypovolaemia suggests an osmotic link between the two parameters. More specifically, infused fluid accompanies glucose during uptake into the cells, while volume expansion by the same fluid has already elicited an effective diuretic response.

CONCLUSION: Hypovolaemia is a consequence of hypoglycaemia after intravenous infusion of glucose solution and is caused by the osmotic translocation of fluid from the extracellular to the intracellular fluid space that occurs despite effective renal elimination.

Place, publisher, year, edition, pages
Informa Healthcare, 2008. Vol. 68, no 2, 117-122 p.
Keyword [en]
Diabetes fluids; glucose metabolism; hemodilution; hypovolaemia; hypoglycaemia; water
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-100192DOI: 10.1080/00365510701541036PubMedID: 17852798OAI: diva2:660692
Available from: 2013-10-30 Created: 2013-10-30 Last updated: 2013-11-12Bibliographically approved

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Hahn, Robert G.
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