Nephrostomy tube placement after percutaneous nephrolithotomy: critical evaluation through a prospective randomized...

Area of Science:

• Urology
• Nephrology
• Surgical Innovation

Background:

• Percutaneous nephrolithotomy (PCNL) is a common procedure for kidney stones.
• The role of nephrostomy tubes in PCNL regarding hemostasis and drainage is debated.
• Assessing outcomes of tubeless PCNL versus standard PCNL is crucial for patient management.

Purpose of the Study:

• To prospectively evaluate the hemostatic and drainage functions of nephrostomy tubes after PCNL.
• To compare postoperative pain, hospital stay, and complication rates between tubeless and standard PCNL.
• To determine the suitability of the tubeless approach in specific patient populations.

Main Methods:

• A prospective randomized study of 100 patients undergoing PCNL for upper urinary tract calculi.
• Patients were randomized into tubeless (group 1) and standard (group 2) PCNL groups.
• Hemostatic (hemoglobin/hematocrit deficit, hematuria, hematoma, transfusion) and drainage (urinary leakage, urinoma, hydrothorax) effects were compared.

Main Results:

• Hemoglobin and hematocrit deficits were comparable between groups.
• Transient urinary leakage was significantly lower in the tubeless group (2 vs. 31 patients, P < .05).
• Postoperative pain was significantly less in the tubeless group; however, one patient with CKD required exploration due to hematoma.

Conclusions:

• The hemostatic and drainage functions of nephrostomy tubes in PCNL are modest.
• The tubeless approach offers benefits in reduced pain and leakage but requires caution in patients with chronic kidney disease or those needing a supracostal puncture.