Comparative Study Between One-Shot Dilatation Versus Serial Dilatation Techniques for Access in Percutaneous Nephrolithotomy in Adult Patients

Comparative Study Between One-Shot Dilatation Versus Serial Dilatation Techniques for Access in Percutaneous Nephrolithotomy in Adult Patients

This comparative study aims to compare and assess the safety, efficacy, outcome, feasibility, intraoperative and postoperative complications of one-shot dilatation versus serial dilatation techniques for access during percutaneous nephrolithotomy for management of renal stone disease in adult patients.

Inclusion Criteria:

• Patients aged between 18 and 70 years.
• Patients with renal stones which their size in maximum diameter is more than 2cm and indicated for percutaneous nephrolithotomy.
• Patients clinically fit for surgery.
• Patients with normal anatomy of urinary tract.
• Patients able to understand the procedure and accept to sign the informed consent.

Exclusion Criteria:

• Patients aged below 18 or above 70 years.
• Patients with renal stones which their size in maximum diameter is less than 2cm or contraindicated for endoscopic management.
• Patients with urinary tract infection, abnormal coagulopathy state or clinically unfit for surgery.
• Patients with nephrostomy tube in situ.
• Patients with more than single access tract.
• Patients undergoing simultaneous bilateral stone procedures.
• Patients with urinary tract abnormalities or history of renal transplantation.
• Renal insufficiency with serum creatinine above 3.0mg/dL
• Patients unable to understand the procedure or refuse to sign the informed consent.