title: Pressure-controlled nephrostography.
abstract: Nephrostomy tubes are often left in the kidney after renal operations. Radiographic studies with contrast medium via the tube post-operatively give anatomical information but little or sometimes even misleading information concerning the dynamics of the upper urinary tract. A pressure/flow-controlled nephrostogram allows not only the passage of medium to be watched but the significance of any hold-up or narrowing to be assessed in dynamic terms. In this way small degrees of obstruction can be identified. There are many situations in which this information is of considerable clinical value.
mesh_terms: D005260:Female; D006801:Humans; D007682:Kidney Pelvis / Q000503:physiopathology / Q000601:surgery; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis; D011312:Pressure; D014513:Ureter / Q000503:physiopathology; D014517:Ureteral Obstruction / Q000175:diagnosis* / Q000503:physiopathology; D014521:Urethra; D001743:Urinary Bladder / Q000503:physiopathology; D014546:Urinary Catheterization; D014567:Urography