Successful Intravenous Pyelography in Advanced Uremia — Visualization in the Post-Dialytic State

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Abstract
In eight patients with chronic renal disease (creatinine clearance of 0.4 to 10.0 ml per minute and urine-plasma creatinine ratio between 4.0 and 9.0), drip-infusion intravenous pyelography did not visualize the renal collecting systems. When pyelography was performed within 12 hours of vigorous dialysis, adequate visualization of the collecting systems was obtained in the six patients whose urine-plasma creatinine ratio exceeded 15 after dialysis. Under such circumstances, radiologic study of the renal collecting systems may be possible in patients with chronic renal disease without requiring the use of instrumentation.

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