Liquid paraffin is superior to 2% lidocaine gel in reducing urethral pain during urodynamic study in men: A pilot study.

Abstract

AIMS:

To compare the pain perception between intraurethral instillation of 2% lidocaine gel and liquid paraffin during Urodynamic study in men.

METHODS:

A randomized, single-blind comparison trial was conducted. Forty men scheduled to undergo multichannel Urodynamic study were randomized to receive either 10 ml of 2% lidocaine gel (group 1, n = 20) or 10 ml of liquid paraffin (group 2, n = 20). Patients recorded their pain on a 0-10 visual analog scale prior to lubricant instillation, immediately after lubricant instillation, after the introduction of the Urodynamic catheter, 5 and 30 min after the catheter was taken out.

RESULTS:

pain scores were significantly higher in group 1 compared to group 2 immediately after the instillation of the lubricants (4.2 ± 1.5 vs. 2.6 ± 0.9, P < 0.001) and after catheterization (4.8 ± 1.5 vs. 3.5 ± 1.1, P < 0.01). There were no differences in the pain scores between the two groups in the other time points that were evaluated.

CONCLUSIONS:

Liquid paraffin is more efficient than 2% lidocaine gel in reducing urethral pain during Urodynamic study in men. Pain scores were specifically better during the instillation of the lubricant and during the delivery of the urethral catheter.

• Authors: Kobi Stav, Eyal Taleb, Itay M Sabler, Yoram I Siegel, Ilia Beberashvili, Amnon Zisman
• Journal: Neurourology and urodynamics (Neurourol Urodyn) Vol. 34 Issue 5 Pg. 450-3 (Jun 2015) ISSN: 1520-6777 [Electronic] United States
• PMID: 24610603 (Publication Type: Journal Article, Randomized Controlled Trial)
• Copyright: © 2014 Wiley Periodicals, Inc.

Chemical References

• Anesthetics, Local
• Emollients
• Gels
• Lubricants
• Mineral Oil
• Lidocaine

Topics

• Administration, Topical
• Aged
• Aged, 80 and over
• Anesthetics, Local (therapeutic use)
• Diagnostic Techniques, Urological
• Emollients (therapeutic use)
• Gels
• Humans
• Lidocaine (therapeutic use)
• Lubricants (therapeutic use)
• Male
• Middle Aged
• Mineral Oil (therapeutic use)
• Pain (prevention & control)
• Pain Measurement
• Pilot Projects
• Single-Blind Method
• Urethra
• Urinary Catheterization (methods)
• Urodynamics
• Visual Analog Scale