RESUMO
PURPOSE: We present our experience with tubeless percutaneous nephrolithotomy (PCNL). PATIENTS AND METHODS: Between July 2004 and December 2006, 121 patients (82 males and 39 females) with 18-70 mm (mean 31.19 mm) renal stones underwent tubeless PCNL leaving only a 6 Fr externalized ureteric catheter. Their ages ranged between 4 and 80 years (mean 37.27). Two patients had bilateral disease, so a total of 123 renal units are included. The procedure was performed under general anesthesia in the prone (110 units) or supine position (13 units). A total of 133 punctures were performed. The punctures were single (114 units), double (8 units), or triple (1 unit). The approach was subcostal through the lower calyx (n=110) or middle calyx (n=10), or supracostal through the middle calyx (n=8) or upper calyx (n=5). RESULTS: Mean operative time was 46.30 min (range 15-100). Mean reduction in hemoglobin level was 1.57 g (range 0.3-4) with blood transfusion rate 4.13%. Complication rate was 9.9% in the form of perirenal collection (five patients), urinary leakage (two patients), fever (four patients), and hydrothorax (one patient). The ureteric catheter was left for 7-72 h (mean 45.67). Postoperative analgesia was required in 22 patients (18.2%) with mean 22.9 mg diclofenac sodium per patient. Mean hospital stay was 50.69 h (range 12-96) with 106 units (86.18%) rendered stone free, 13 (10.57%) with insignificant residuals, and four units (3.25%) were left with significant residual stones. CONCLUSIONS: Tubeless PCNL is a good option in non-complicated PCNL with the advantages of reduced hospital stay, low postoperative pain, and little need for postoperative analgesia.
