Analysis of failure causes of establishing percutaneous renal channel in mini-percutaneous nephrolithotomy under B ultrasound guidance
YANG Xin-biao
ZHUGE Dong-gui
LI Shan-jun
Abstract：Objective To analyze the failure causes of establishing percutaneous renal channel in mini -per-cutaneous nephrolithotomy ( MPCNL) under B ultrasound guidance .Methods The clinical data of 500 patients with upper urinary tract calculus who underwent MPCNL under B ultrasound guidance were reviewed .Results The failure of establishing percutaneous renal channel found in 42 cases because of unsuccessful puncture or percutaneous chan-nel lost due to puncture expansion failure .There were no complications such as puncture or expansion bleeding , peri-renal hematoma, urinary fistula, colon and pleural damage.The causes of puncture failure included obesity (10 ca-ses), the spinal deformity(6 cases), polycystic kidney disease(3 cases), kidney malrotation(3 cases);the causes of renal channel lost included ill kidney having the history of open surgery for renal calculi ( 7 cases ) , severe hydrone-phrosis(4 cases), staghorn stone(9 cases).Conclusion Obesity, spinal deformity, polycystic kidney disease, kid-ney malrotation , ill kidney having history of open surgery for renal calculi , severe hydronephrosis , staghorn stone may be failure causes of establishing percutaneous renal channel in MPCNL under B ultrasound guidance , and carefully channel design can reduce the incidence rate of failure of establishing percutaneous renal channel .
Keywords：Ultrasound guidanceMini-percutaneous nephrolithotomy (MPCNL)PuncturePercuta-neous renal channel
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1083-1086 )