The purpose of this project is to investigate if hydroxyethyl starch (HES) is potential nephrotoxic and examine the effects on the circulation and kidneys during administration of HES during surgery.
Hydroxyethyl starch (HES) is widely used in hospitals to maintain circulation in critically ill patients. In recent years studies have raised suspicion that HES is nephrotoxic. So far acute kidney injury has been diagnosed based on creatinine measurements, but new technology allows for earlier diagnosis using measurements of biomarkers in urine. The purpose of this project is to investigate HES's potential toxicity and effects on the circulation and kidneys using measurements of biomarkers specific for toxicity and for the sodium/water balance in the urine and by measurements of vasoactive hormones in the blood after administration of HES 130/0.4
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
14
7,5 ml/kg in the first hour and then 5 ml/kg minimum
7,5 ml/kg in the first hour and then 5 ml/kg
Medicinck forskningsafsnit, Regionshospitalet Holstebro
Holstebro, Denmark
u-NGAL
The main objective for the trial(only patients undergoing elective laparoscopic nephrectomy) is to measure the effect of hydroxyethyl starch on u-NGAL, which is a biomarker of nephrotoxicity
Time frame: 2-4 hours
u-Kim1 and u-LFABP
Another objective for the trial(only patients undergoing elective laparoscopic nephrectomy) is to measure the effect of hydroxyethyl starch on u-Kim1 and u-LFAPB, which are also biomarkers of nephrotoxicity
Time frame: 2-4 hours
FENa, u-ENaCβ, CH2O, u-AQP2,u-NCC, u-NK2CC
Secondarily to measure the effect of hydroxyethyl starch on the renal tubular transport of sodium and water during elective laparoscopic nephrectomy
Time frame: 2-4 hours
PRC, p-Ang-II, p -Aldo, p-ANP,P-GDP, p-AVP, p-Endothelin
Thirdly to measure the effect of hydroxyethyl starch on vasoactive hormones during elective laparoscopic nephrectomy
Time frame: 2-4 hours
SBP, DBP, heartrate
Fourthly measure the effect of hydroxyethyl starch on central hemodynamics during elective laparoscopic nephrectomy
Time frame: 2-4 hours
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