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1 From Section of Urology, Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana; and Touro Infirmary, New Orleans, Louisiana
2 Research Trainee under U. S. Public Health Service
Drip infusion pyelography consistently results in dense nephrograms and excellent opacity of the upper and lower urinary tracts. This is secondary to flooding the urinary system with highly concentrated contrast medium.
The effect of drip infusion pyelography on glomerular filtration rate, renal plasma flow, urine volume, osmolar clearance, blood pressure, pulse rate, and blood urea nitrogen was studied. The only significant effect was a marked increase in urine volume and osmolar clearance. Drip infusion pyelography has no deleterious effect upon kidney function and presents no greater incidence of toxic reactions than the low dosage standard intravenous pyelography. This method greatly increases the capabilities of intravenous urography, frequently eliminating the need for retrograde contrast studies.
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