Tail stent versus re-entry tube: a randomized comparison after percutaneous stone extraction

Area of Science:

• Urology
• Minimally Invasive Surgery
• Nephrolithiasis Management

Background:

• Percutaneous nephrolithotomy (PCNL) is a common procedure for kidney stone removal.
• Postoperative drainage management is crucial for patient recovery and comfort.
• Standard nephrostomy tubes can cause significant discomfort and complications.

Purpose of the Study:

• To compare the efficacy and patient tolerance of a 7F tail stent with an 18F Councill nephrostomy tube versus a 24F re-entry Malecot nephrostomy tube after PCNL.

Main Methods:

• Prospective randomized trial involving 40 patients undergoing PCNL.
• Patients were assigned to either a 24F Malecot tube (Group A) or a 7F tail stent with an 18F Councill tube (Group B).
• Postoperative pain, urinary urgency, and quality of life were assessed using a questionnaire 15 days after the procedure.

Main Results:

• Group B demonstrated a statistically significant reduction in flank pain (P = 0.0002).
• Flank urine leakage was observed in all Group A patients but none in Group B.
• No significant differences were found in urgency or quality of life scores, though a trend favored Group B.

Conclusions:

• The 7F tail stent with an 18F Councill nephrostomy tube is better tolerated by patients post-PCNL.
• This combination offers improved pain management and reduced urine leakage compared to the standard 24F Malecot tube.