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Summary
Urodynamic study of the upper urinary tract aids in diagnosing upper tract obstruction. This procedure, using antegrade puncture, analyzes pelvic pressure, urine concentration, and pyelogram for comprehensive evaluation.
Area of Science:
- Urology
- Nephrology
- Diagnostic procedures
Background:
- Excretion urography may require complementary information for upper urinary tract obstruction.
- Assessing renal pelvis pressure and urine composition is crucial for diagnosis.
Purpose of the Study:
- To describe the urodynamic study of the upper urinary tract.
- To detail its application in diagnosing and managing upper tract obstruction.
Main Methods:
- Antegrade transcutaneous kidney puncture.
- Simultaneous analysis of resting pelvic pressure, renal pelvic urine solute concentration, and antegrade pyelogram.
- Complementary antegrade flow studies or needle nephrostomy when needed.
Main Results:
- The basic urodynamic evaluation (pressure, concentration, pyelogram) is often sufficient for diagnosis and prognosis.
- Antegrade flow studies and needle nephrostomy provide additional data in specific cases.
Conclusions:
- Urodynamic study of the upper urinary tract is a valuable tool complementing excretion urography.
- The procedure offers comprehensive diagnostic and prognostic information for upper tract obstruction.