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Updated: Aug 18, 2025

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Feasibility of one-shot dilation access in the pediatric age group
Alok Srivastava1, Krishna Kumar Yadav2, Anjana Singh3
1Urology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, India.
Objective:
To compare sequential fascial dilation (SFD) versus one-shot dilation (OSD) in the pediatric patients undergoing percutaneous nephrolithotomy.
Methods:
The present study is an observational study. The study subjects were divided into two groups. In group 1, renal dilation was done using the SFD and in group 2, renal dilation was done using the OSD. The amount of time exposed to radiation during access to pelvicalyceal system was estimated. Complications, stone free rates, ancillary procedures for residual stones and hospital stay were compared. Modified Clavien-Dindo classification was used for grading the complications.
Results:
Radiation exposure and operative time were less in OSD group (95% confidence interval (CI) 3.068 to 14.072, and 2.565 to 12.435, p<0.005). The mean drop of hematocrit was statistically less significant in OSD group (p=0.032). In both groups, complications, stone free rate and hospital stay were statistically insignificant.
Conclusions:
OSD is feasible in the children with reduced radiation exposure and shorter operative time. The outcome was similar to SFD.
