Evaluation of a novel fascial dilator modified with scale marker in percutaneous nephrolithotomy for reducing the X-ray exposure: a randomized clinical study.

Abstract:

OBJECTIVE:To evaluate the role of the fascial dilators modified with a scale marker in reducing fluoroscopy time during percutaneous nephrolithotomy (PCNL). METHOD:In a randomized clinical trial, eligible 100 consecutive patients anticipated to undergo single-tract PCNL were randomly assigned into two groups by the closed envelope method, to compare the efficacy and safety of the modified scale fascial dilator (group 1, n=50) and traditional nonscale fascial dilator (group 2, n=50) with respect to the X-ray exposure duration as well as the outcome of PCNL. RESULTS:There was no significant difference between group 1 and group 2 regarding to the initial successful access rate (100% v 96%), operative time (79.4 v 83.7 minutes), the initial stone-free rate (82% v 81.3%), complications (24% v 20%), and bleeding required blood transfusion (4% v 6%) (all p>0.05). The mean operative duration and fluoroscopic time for tract dilation in group 1 and group 2 were 164.4 ± 19 seconds v 168.3 ± 14 seconds, and 3.2 ± 0.9 seconds v 22.2 ± 4.6 seconds, (p=0.250 and p<0.001), respectively. CONCLUSIONS:Compared to the use of nonscaled dilators, using the scaled fascial dilators for a percutaneous access in PCNL was found to be associated with less radiation hazards along with similar stone-free rate and complications.

journal_name

J Endourol

journal_title

Journal of endourology

authors

Zeng G,Zhao Z,Zhong W,Wu K,Chen W,Wu W,Xiao C,Liu Y

doi

10.1089/end.2012.0671

subject

Has Abstract

pub_date

2013-11-01 00:00:00

pages

1335-40

issue

11

eissn

0892-7790

issn

1557-900X

journal_volume

27

pub_type

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