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  • Title: Flexible ureteropyeloscopy: diagnosis and treatment in the upper urinary tract.
    Author: Bagley DH, Huffman JL, Lyon ES.
    Journal: J Urol; 1987 Aug; 138(2):280-5. PubMed ID: 3599238.
    Abstract:
    Flexible ureteropyeloscopy was performed on 59 patients with 2.7, 3.2 or 3.6 mm. endoscopes with a deflectable tip. Techniques for use of these flexible endoscopes are discussed in detail. The endoscope could be passed into the ureter in 58 patients and into the kidney in 52 (88 per cent). The entire collecting system was visualized in 23 of the most recent 29 patients (79 per cent). A diagnosis was achieved in all 23 patients with an intrarenal filling defect demonstrated radiographically. The source of gross hematuria alone could be defined in 9 of 17 patients. Surveillance for tumor was achieved in 5 of 5 patients and for residual calculus in 4 of 4. The endoscope was used to establish continuity successfully in 3 patients with an obstructed ureteropelvic junction. An instrument with a deflectable tip and some technique for irrigation are essential for intrarenal inspection and complete visualization of the ureter. This procedure is valuable in selected patients and it rapidly may become the technique of choice for the diagnosis of intrarenal filling defects. It also is of value in patients with benign, essential hematuria.
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