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The Measurement of the Renal Venous Outflow in Man by the Local Thermodilution Method
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1971
Year
HypertensionEngineeringRenal PathologyThermodilution MethodRenal FunctionThermodynamicsClinical ChemistryLaboratory MedicineRenal PharmacologyBlood Flow MeasurementHemodialysisRenal Venous OutflowRenal PathophysiologyLocal Thermodilution MethodUrologyPhysiologyTemperature MeasurementMedicineNephrology
The local thermodilution method was adapted for the measurement of renal venous outflow in man. The flow in model experiments varied in the range of 3% from the mean. Clinical measurement on one or successively on both sides was carried out in 35 patients with essential hypertension or proteinuria. In 3 subjects with healthy kidneys the average venous outflow from one kidney was 782 ± 112 ml/min. The average standard deviation of the difference between both kidneys in 7 bilaterally investigated persons was 51 ml/min. The variability of resting flow depended principally on respiration and amounted to 12 to 18%. Comparison of the results of the thermodilution measurement with the PAH-clearance and with the dye dilution technique gave a good correlation and confirmed the usefulness of the thermodilution method for the measurement of the renal blood flow.