Related Experiment Video
Updated: Oct 23, 2025

A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
Published on: September 13, 2022
A randomized study comparing conventional percutaneous nephrolithotomy versus check pyeloscopic percutaneous
Rohit Purwar1, Vasudevan Thirugnanasambandam1, Abdulrazack Mossadeq1
1Department of Urology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth, Pondicherry, India.
Check pyeloscopic percutaneous nephrolithotomy (CP-PCNL) significantly reduces complications compared to conventional PCNL (C-PCNL) for kidney stone management. This safer technique offers fewer injuries and less bleeding, improving patient outcomes.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Nephrolithiasis Management
Background:
- Percutaneous nephrolithotomy (PCNL) is a standard procedure for kidney stone removal.
- Conventional PCNL (C-PCNL) carries risks of complications like bleeding and urothelial injury.
- Enhancing PCNL safety and efficacy is crucial for patient care.
Purpose of the Study:
- To compare the advantages of check-pyeloscopic percutaneous nephrolithotomy (CP-PCNL) against conventional PCNL (C-PCNL).
- To evaluate the efficacy and safety of CP-PCNL in managing renal calculi.
- To determine if CP-PCNL leads to a reduction in procedural complications.
Main Methods:
- A randomized study involving 100 patients with renal calculi requiring PCNL.
- Patients were divided into two groups (50 each): C-PCNL and CP-PCNL.
- Data on complications and outcomes were collected and statistically analyzed.
Main Results:
- The CP-PCNL group experienced significantly fewer complications (1 minor urothelial injury, 1 infundibular tear) compared to the C-PCNL group (2 pelvic tears, 8 infundibular tears, 1 minor urothelial injury, 2 cases of prolonged bleeding).
- Statistical analysis revealed a significant difference between the groups (P = 0.027).
- CP-PCNL demonstrated a favorable safety profile with reduced blood loss and injury rates.
Conclusions:
- Check pyeloscopy during PCNL is a safe, effective, and economical technique.
- CP-PCNL is associated with lower rates of blood loss, urothelial injury, and postoperative pain.
- CP-PCNL represents an advantageous advancement in the management of renal calculi.
Related Concept Videos
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
Urinary Tract Calculi VI: Surgical Management
Acute Pyelonephritis II: Diagnostic Studies and Management
Kidney Transplant II: Surgical Procedure

