Application of percutaneous nephrolithotomy with ClearPetra negative pressure sheath in the treatment of obstructive calculous pyonephrosis
2019
Objective
To investigate the clinical value of percutaneous nephrolithotomy (PCNL) combined with ClearPetra negative pressure sheath in the treatment of obstructive calculous pyonephrosis.
Methods
From March to December 2016, 76 patients underwent PCNL in the Fifth Affiliated Hospital were randomly divided into two groups, 38 cases in each group. Patients in group A were treated with CREATE combined with Cyberwand double probe ultrasound lithotripsy, and group B were treated with ClearPetra negative pressure stone sheath combined with pneumatic lithotripsy and/or holmium laser lithotripsy.
Results
All patients were treated with Ⅰ stage operation successfully. Compared with group A, group B had a higher rate of stone removal (84.2% vs 63.1%, P=0.037). There was no significant difference in stone clearance (94.4% vs 86.8%, P=0.43). The operation time of group B, significantly shorter than that of group A at [(56±20) min vs (70±15) min, P=0.035]. The complication rate of group B was lower than that of group A (15.8% vs 23.7%, P=0.035).
Conclusion
PCNL combined with ClearPetra negativepressure clear stone sheath is a simple, safe and effective, economical and practical method for the treatment of obstructive calculous pyonephrosis.
Key words:
PCNL; Negative pressure sheath; Obstructive; Calculous pyonephrosis; Randomly
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