Summary
Surgical treatment of kidney stones has changed over the years. The use of Mini Percutaneous
Nephrolithotomy (MiniPCNL) instrumentation is associated with a reduction of major
complications but it lengthens the operative time (OT). This limit may be overcome
by a semi-closed-circuit vacuum-assisted MiniPCNL system, characterized by a continuous
inflow and a suction-controlled outflow. We present our initial experience in pediatric
patients who underwent PCNL using a 12 Fr nephroscope and a 16-Fr-large nephrostomy
sheath, equipped with a lateral arm connected to suction. We used Holmium laser lithotripsy
and performed lapaxy by drawing back slowly the nephroscope inside the sheath until
the opening of the lateral aspiration arm, without using other devices. The stone-free
rate (SFR) was assessed at 4 weeks. We included 12 procedures in 8 patients with a
median age of 119 months and a median weight of 27 Kg. The median OT was 108 min and
the SFR was 80%. No intra-operative complications occurred, while minor post-operative
complications occurred after 4/12 procedures. These preliminary data in pediatric
population showed the employed system is a safe and effective approach to treat complex
kidney stones with a satisfactory SFR and a low OT.
Keywords
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References
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Article info
Publication history
Published online: February 10, 2021
Accepted:
February 3,
2021
Received:
January 17,
2021
Identification
Copyright
© 2021 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.
