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High-dose intravenous infusion of irrigating fluids containing glycine and mannitol in the pig

Sandfeldt, Lars ; Riddez, Louis ; Rajs, Jovan ; Ewaldsson, C-A. ; Piros, David LU and Hahn, Robert G. (2001) In The Journal of surgical research 95(2). p.114-125
Abstract

BACKGROUND: Large-scale absorption of electrolyte-free irrigating fluid during endoscopic surgery may result in a "transurethral resection syndrome." The severity of the syndrome can probably be modified by using mannitol 5% instead of the most widely used glycine 1.5%.

METHODS: Seventeen pigs with a mean body weight of 22 (range 19-26) kg received an intravenous infusion of 100 mL kg(-1) h(-1) of either glycine 1.5% or mannitol 5% over 90 min. Central hemodynamics, whole-body and brain oxygen consumption, intracranial pressure, blood hemoglobin, and the sodium concentrations in serum and urine were monitored for 120 min. Selected measurements were made on 6 other pigs given mannitol 3% and in 2 controls not given any fluid.... (More)

BACKGROUND: Large-scale absorption of electrolyte-free irrigating fluid during endoscopic surgery may result in a "transurethral resection syndrome." The severity of the syndrome can probably be modified by using mannitol 5% instead of the most widely used glycine 1.5%.

METHODS: Seventeen pigs with a mean body weight of 22 (range 19-26) kg received an intravenous infusion of 100 mL kg(-1) h(-1) of either glycine 1.5% or mannitol 5% over 90 min. Central hemodynamics, whole-body and brain oxygen consumption, intracranial pressure, blood hemoglobin, and the sodium concentrations in serum and urine were monitored for 120 min. Selected measurements were made on 6 other pigs given mannitol 3% and in 2 controls not given any fluid. Morphological examinations of the hearts were conducted.

RESULTS: Both glycine 1.5% and mannitol 5% transiently increased cardiac output, the aortic blood flow rate, and arterial pressures, but all of these parameters fell to below baseline after the infusions were ended. The intracranial pressure was lower (P < 0.05) and the oxygen consumption in the brain decreased (P < 0.001) during the infusion of mannitol 5%. Glycine 1.5% expanded the intracellular volume more than mannitol did (P < 0.002). Signs of myocardial damage were graded glycine 1.5% > mannitol 5% > mannitol 3%.

CONCLUSIONS: Massive infusion of glycine 1.5% and mannitol 5% left the pigs in a hypokinetic hypotensive state. Glycine 1.5% increased the intracranial pressure and injured the myocardium more than mannitol 5%, which then seems to be a more appropriate irrigating fluid to use during endoscopic surgery.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
Animals, Aorta/drug effects, Blood Flow Velocity/drug effects, Blood Pressure/drug effects, Brain/drug effects, Cardiac Output/drug effects, Coronary Vessels/drug effects, Electrocardiography/drug effects, Endoscopy, Female, Glycine/administration & dosage, Heart/drug effects, Heart Rate/drug effects, Hemodynamics/drug effects, Hemoglobins/metabolism, Infusions, Intravenous, Intracranial Pressure/drug effects, Male, Mannitol/administration & dosage, Oxygen/blood, Oxygen Consumption/drug effects, Sodium/blood, Swine, Therapeutic Irrigation, Time Factors
in
The Journal of surgical research
volume
95
issue
2
pages
114 - 125
publisher
Elsevier
external identifiers
  • scopus:0035747003
  • pmid:11162034
ISSN
0022-4804
DOI
10.1006/jsre.2000.6028
language
English
LU publication?
no
additional info
Copyright 2000 Academic Press.
id
0a26b3e1-3ca4-4e45-a176-1dd7c2a2cc38
date added to LUP
2022-03-16 08:08:08
date last changed
2024-01-03 09:18:24
@article{0a26b3e1-3ca4-4e45-a176-1dd7c2a2cc38,
  abstract     = {{<p>BACKGROUND: Large-scale absorption of electrolyte-free irrigating fluid during endoscopic surgery may result in a "transurethral resection syndrome." The severity of the syndrome can probably be modified by using mannitol 5% instead of the most widely used glycine 1.5%.</p><p>METHODS: Seventeen pigs with a mean body weight of 22 (range 19-26) kg received an intravenous infusion of 100 mL kg(-1) h(-1) of either glycine 1.5% or mannitol 5% over 90 min. Central hemodynamics, whole-body and brain oxygen consumption, intracranial pressure, blood hemoglobin, and the sodium concentrations in serum and urine were monitored for 120 min. Selected measurements were made on 6 other pigs given mannitol 3% and in 2 controls not given any fluid. Morphological examinations of the hearts were conducted.</p><p>RESULTS: Both glycine 1.5% and mannitol 5% transiently increased cardiac output, the aortic blood flow rate, and arterial pressures, but all of these parameters fell to below baseline after the infusions were ended. The intracranial pressure was lower (P &lt; 0.05) and the oxygen consumption in the brain decreased (P &lt; 0.001) during the infusion of mannitol 5%. Glycine 1.5% expanded the intracellular volume more than mannitol did (P &lt; 0.002). Signs of myocardial damage were graded glycine 1.5% &gt; mannitol 5% &gt; mannitol 3%.</p><p>CONCLUSIONS: Massive infusion of glycine 1.5% and mannitol 5% left the pigs in a hypokinetic hypotensive state. Glycine 1.5% increased the intracranial pressure and injured the myocardium more than mannitol 5%, which then seems to be a more appropriate irrigating fluid to use during endoscopic surgery.</p>}},
  author       = {{Sandfeldt, Lars and Riddez, Louis and Rajs, Jovan and Ewaldsson, C-A. and Piros, David and Hahn, Robert G.}},
  issn         = {{0022-4804}},
  keywords     = {{Animals; Aorta/drug effects; Blood Flow Velocity/drug effects; Blood Pressure/drug effects; Brain/drug effects; Cardiac Output/drug effects; Coronary Vessels/drug effects; Electrocardiography/drug effects; Endoscopy; Female; Glycine/administration & dosage; Heart/drug effects; Heart Rate/drug effects; Hemodynamics/drug effects; Hemoglobins/metabolism; Infusions, Intravenous; Intracranial Pressure/drug effects; Male; Mannitol/administration & dosage; Oxygen/blood; Oxygen Consumption/drug effects; Sodium/blood; Swine; Therapeutic Irrigation; Time Factors}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{114--125}},
  publisher    = {{Elsevier}},
  series       = {{The Journal of surgical research}},
  title        = {{High-dose intravenous infusion of irrigating fluids containing glycine and mannitol in the pig}},
  url          = {{http://dx.doi.org/10.1006/jsre.2000.6028}},
  doi          = {{10.1006/jsre.2000.6028}},
  volume       = {{95}},
  year         = {{2001}},
}