PMID- 38453696
OWN - NLM
STAT- MEDLINE
DCOM- 20240311
LR  - 20240311
IS  - 1433-8726 (Electronic)
IS  - 0724-4983 (Linking)
VI  - 42
IP  - 1
DP  - 2024 Mar 7
TI  - The optimal ratio of endoscope-sheath diameter with negative-pressure ureteral 
      access sheath: an in vitro research.
PG  - 122
LID - 10.1007/s00345-024-04815-7 [doi]
AB  - PURPOSE: To maintain safe intrarenal pelvic pressure (IPP), the combination of 
      flexible ureteroscope (fURS) and traditional ureteral access sheath (T-UAS) 
      should maintain a basic rule that is the ratio of endoscope-sheath diameter 
      (RESD) </= 0.75. However, the negative-pressure ureteral access sheath (NP-UAS) may 
      break the rule of negative pressure suction. This study aimed to examine the 
      effect of NP-UAS on IPP and flow rate (FR) with varying RESD. METHODS: In a 
      3D-printed renal model, flexible ureteroscopy lithotripsy (fURL) was replicated. 
      Six sizes of fURS paired with 12Fr T-UAS and NP-UAS resulted in six distinct 
      RESDs of 0.63, 0.78, 0.87, 0.89, 0.90, and 0.91. While the irrigation pressure 
      (IRP) was set between 100 and 800 cmH(2)O and the sucking pressure (SP) was set 
      between 0 and 800 cmH(2)O, the IPP and FR were measured in each RESD. RESULTS: 
      NP-UASs can reduce the IPP and increase the FR at the same RESD compared to 
      T-UASs. The IPP decreased with increasing SP with NP-UAS. When RESD </= 0.78, T-UAS 
      and NP-UAS can maintain IPP < 40 cmH(2)O in most circumstances. When RESD = 0.87, 
      it is challenging for T-UAS to sustain IPP < 40 cmH(2)O; however, NP-UAS can do 
      so. When RESD >/= 0.89, it is difficult to maintain an IPP < 40 cmH(2)O even with 
      NP-UAS. CONCLUSION: NP-UAS can decrease IPP and increase FR compared with T-UAS. 
      To maintain a safe IPP, it is recommended that RESD < 0.85 when utilizing NP-UAS.
CI  - (c) 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Shi, Jingyu
AU  - Shi J
AD  - Department of Urology, The First Affiliated Hospital of Ningbo University, 59#, 
      Liuting Street, Haishu District, Ningbo, 315000, Zhejiang, China.
FAU - Huang, Ting
AU  - Huang T
AD  - Department of Urology, The First Affiliated Hospital of Ningbo University, 59#, 
      Liuting Street, Haishu District, Ningbo, 315000, Zhejiang, China.
FAU - Song, Baiyang
AU  - Song B
AD  - Department of Urology, The First Affiliated Hospital of Ningbo University, 59#, 
      Liuting Street, Haishu District, Ningbo, 315000, Zhejiang, China.
AD  - Health Science Center, Ningbo University, Ningbo, Zhejiang, China.
FAU - Liu, Wanzhang
AU  - Liu W
AD  - Department of Urology, The First Affiliated Hospital of Ningbo University, 59#, 
      Liuting Street, Haishu District, Ningbo, 315000, Zhejiang, China.
FAU - Cheng, Yue
AU  - Cheng Y
AD  - Department of Urology, The First Affiliated Hospital of Ningbo University, 59#, 
      Liuting Street, Haishu District, Ningbo, 315000, Zhejiang, China.
FAU - Fang, Li
AU  - Fang L
AUID- ORCID: 0000-0003-0870-1066
AD  - Department of Urology, The First Affiliated Hospital of Ningbo University, 59#, 
      Liuting Street, Haishu District, Ningbo, 315000, Zhejiang, China. 
      fyyfangli@nbu.edu.cn.
LA  - eng
GR  - No.2022020203/Ningbo Top Medical and Health Research Program/
PT  - Journal Article
DEP - 20240307
PL  - Germany
TA  - World J Urol
JT  - World journal of urology
JID - 8307716
SB  - IM
MH  - Humans
MH  - Ureteroscopy/methods
MH  - *Kidney Calculi
MH  - *Ureter
MH  - Kidney
MH  - Ureteroscopes
OTO - NOTNLM
OT  - Flexible ureteroscopy lithotripsy
OT  - Intrarenal pelvic pressure
OT  - Negative-pressure ureteral access sheath
OT  - Ratio of endoscope-sheath diameter
OT  - Sucking pressure
EDAT- 2024/03/08 00:42
MHDA- 2024/03/11 06:42
CRDT- 2024/03/07 23:23
PHST- 2023/07/29 00:00 [received]
PHST- 2024/01/16 00:00 [accepted]
PHST- 2024/03/11 06:42 [medline]
PHST- 2024/03/08 00:42 [pubmed]
PHST- 2024/03/07 23:23 [entrez]
AID - 10.1007/s00345-024-04815-7 [pii]
AID - 10.1007/s00345-024-04815-7 [doi]
PST - epublish
SO  - World J Urol. 2024 Mar 7;42(1):122. doi: 10.1007/s00345-024-04815-7.