Us vs Fluoroscopic Guided Renal Access

Ultrasonography Versus Fluoroscopic Guided Renal Access

this present study is to compare the result of fluoroscopy, ultrasonography (US) in the guidance of percutaneous nephrostomy pcn .

investigators will enroll 100 patients who are candidates for PCN in the study. By simple random sampling technique, patients will be assigned to two patient groups (group 1, US-guided approach , group 2, fluoroscopy-guided approach.The end point of the study is the comparison of outcome of procedure including stone free rate, transfusion rate, operation time, access time, length of stay and complications.

Inclusion Criteria:

• infected hydronephrotic kidney onen's grade 2-3
• obstructed good cortex with backpressure changes onen's grade 2-3 .
• Evaluation of function of asymptomatic hydronephrotic kidney thin cortex onen's grade 4

Exclusion Criteria:

• congenital anomalies of kidney
• patient underwent transplant or urinary diversion
• solitary kidney