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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1998-1-6
pubmed:abstractText
Hepatorenal perfusion and function were assxssed in 22 dogs undergoing acute normovolemic hemodilution (ANH) to a hematocrit (Hct) of 20% using 6% hydroxyethyl starch (200.000/0.5) as the diluent. Organ perfusion was determined with the radioactive microspheres method. Renal function was assessed by urinary output, creatinine clearance and fractional sodium excretion. Blood volume as well as hepatic function were derived from indocyanine green (ICG) dilution kinetics. Hepatocellular integrity was determined by serum enzymatic activity of glutamate-oxalacetate-transaminase (GOT) and glutamate-pyruvate- transaminase (GPT). ANH to Hct 20% did not change blood volume and mean aortic pressure, while heart rate was slightly elevated (p<0.05) by 5 beats per minute and cardiac output increased by 29% (p<0.05). In contrast to the liver, where arterial and portal venous blood flow increased (86% and 28%, respectively; p<0.05), total renal blood flow as well as intraorgan distribution of renal blood flow remained unchanged post-ANH. While creatinine clearance remained unchanged following ANH, urinary output and fractional urinary excretion increased (p<0.05). In response to enhanced hepatic blood flow after ANH, intravascular half-life of ICG was reduced (p<0.05) and ICG clearance increased (p<0.05). Serum enzymatic activity of GPT decreased upon ANH (p<0.05), while GOT activity remained unchanged. ANH to a Hct 20% does not impair hepatorenal function. Increased urinary output points out the necessity for proper adjustment of crystalloid infusion to maintain normal intravascular volume and avoid hypovolemia and the associated risk of tissue hypoxia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0949-2321
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
419-24
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Effects of hemodilution on splanchnic perfusion and hepatorenal function. II. Renal perfusion and hepatorenal function.
pubmed:affiliation
Institute for Surgical Research and Institute of Anesthesiology Marchioninistr. 15 Munich, D-81366 Germany +49 89/7095 4357 +49 89/7095 8897 habler@icf.med.uni-muenchen.de.
pubmed:publicationType
Journal Article