Comparison of effects of flexible negative pressure aspiration sheath and intelligent pressure-controlled aspiration sheath respectively combined with ureteroscopic laser lithotripsy and stone extraction in treatment of upper urinary tract stones smaller than 2 cm
LIU Mingqi
LIANG Bin
ZHANG Zhenqiang
DANG Bowen
LIU Xingze
YE Jinhan
HUANG Beiyuan
CHEN Guan
TAN Baofei
PANG Guijian
XU Wei
LIU Chengbei
Abstract：Objective To compare the effects of flexible negative pressure aspiration sheath and intelligent pressure-controlled aspiration sheath respectively combined with ureteroscopic laser lithotripsy and stone extraction in treatment of upper urinary tract stones smaller than 2 cm.Methods A total of 160 patients with upper urinary tract stones smaller than 2 cm who were admitted to the First People's Hospital of Yulin from June 2023 to June 2024 were recruited and divided into group A(receiving flexible negative pressure aspiration sheath combined with ureteroscopic laser lithotripsy and stone extraction)and group B(receiving intelligent pressure-controlled aspiration sheath combined with ureteroscopic laser lithotripsy and stone extraction)by using random number table method,with 80 patients in each group.The operation time,stone clearance rate,length of hospital stay and the levels of postoperative white blood cell count(WBC),C-reactive protein(CRP)and procalcitonin(PCT)were compared between the two groups.The occurrence of complications was recorded in the two groups.Results The operation time in group B was shorter than that in group A,and the postoperative WBC and CRP levels in group B were lower than those in group A,and the differences were statistically significant(P＜0.05).There were no statistically significant differences in the length of hospital stay and postoperative PCT level between the two groups(P＞0.05).The stone clearance rate in group A was significantly higher than that in group B at 1 month after the operation(83.75％vs 70.00％;x2=4.254,P=0.039),but there was no statistically significant difference in the stone clearance rate between the two groups at 3 months after the operation(93.75％vs 88.75％;x2=1.252,P=0.263).There was no statistically significant difference in the incidence of postoperative complications between the two groups(P＞0.05).Conclusion The applications of flexible negative pressure aspiration sheath and intelligent pressure-controlled aspiration sheath in ureteroscopic laser lithotripsy and stone extraction are safe and effective in treatment of upper urinary tract stones smaller than 2 cm.Intelligent pressure-controlled aspiration sheath combined with ureteroscopic laser lithotripsy and stone extraction is superior to flexible negative pressure aspiration sheath combined with ureteroscopic laser lithotripsy and stone extraction in shortening the operation time and controlling postoperative inflammation.
Keywords：Flexible negative pressure aspiration sheathIntelligent pressure-controlled aspiration sheathUreteroscopic laser lithotripsy and stone extractionUpper urinary tract stones
Publication Date：2025-09-30
Online Publishing Date：2025-10-24(First online date of this platform, not the publication date of the document)
Pages：5( 1038-1042 )