Current Trends in Percutaneous Nephrolithotomy in China: A Spot Survey

Abstract

Objective: To describe trends in the procedure of percutaneous nephrolithotomy (PCNL) in China to identify training needs.

Methods: A spot survey with 36 questions, which revealed demographic data, patterns of PCNL practice, and opinions regarding specific clinical cases, was administered to Chinese urologists during the 17^th National Urological Urolithiasis Symposium held in Dandong in 2018.

Results: Out of 400 participants, 221 responses to the survey were received. PCNL was performed by 80.5% of the participants, and 70.2% of them were senior clinicians. It was found that 91% used the prone decubitus in training programs and 27.6% the modified supine, and 46.6% were apprenticeship trained for PCNL, while 5.6% trained during their residency. The prone position was the preferred decubitus, even for obese patients. All of the urologists established their own access, 93.7% used ultrasonography guidance alone, 70.7% used ultrasonic and/or pneumatic lithotripters, and 29.2% used laser. When exiting the kidney, 73.8% placed a nephrostomy tube whereas 26.2% used the tubeless technique. For postoperative follow-up, 51.3% used computed tomography (CT) or ultrasonography plus kidney-ureter-bladder (KUB) to monitor the results of procedures, while 45% used KUB alone. Colonic injury was reported by 8.9%. Average hospital stays of >3 days were reported for 81.2% of procedures.

Conclusion: Chinese urologists obtain their own access during PCNL, with ultrasonic guidance in most cases, and almost a half of them are apprenticeship trained. They prefer the prone position, use fascial dilators, and place a nephrostomy tube when exiting the kidney. Most urologists follow the official management guidelines in special cases. Skilled use of urological ultrasound examination, flexible nephroscopy, postoperative CT, tubeless procedures in selected patients, and urology residency training are recommended for PCNL practice.

Keywords: PCNL; calculi; percutaneous nephrolithotomy; survey; trends.

Figure 1

Questionnaire about current PCNL trends in China. Percutaneous nephrolithotomy(PCNL) is the first-line treatment for complicated renal stones. This survey is aimed to describe trends in the procedure of percutaneous nephrolithotomy (PCNL) in China to identify training needs. The questions 1~7 are for all urologists and the eighth question for the urologist not performing PCNL, while the remaining 28 questions are for urologists performing PCNL procedure.