Lubricant Versus Lidocaine Gel for Pain Control During Urodynamics

Use of 2% Lidocaine Gel Versus Water Based Lubrication: Is There a Difference in Pain During and After Multi-channel Urodynamics?

The purpose of this study is to determine a difference in patient reported pain levels before, during, and after multichannel urodynamics in patients treated with 2% lidocaine gel or water based lubricant. We hypothesize that lidocaine gel will decrease pain levels when compared to lubricant gel.

Study Overview

• Status: Completed
• Conditions: Pelvic Floor Disorders
• Intervention / Treatment: Drug: 2% lidocaine gel; Drug: Water based lubricant

Detailed Description

The evaluation of the incontinent patient usually includes in and out catheterization for post void residual urinary volume, a cotton tipped swab test, and urodynamic testing. All of these evaluations require manipulation of the urethra by either a catheter or a cotton tipped swab. To minimize discomfort, water based lubricant or 2% lidocaine gel is often used to ease passage of the device into the urethra. In 2008, Harmanli et al. performed a randomized control trial showing use of 2% lidocaine gel significantly decreased pain during the cotton tipped swab test and in and out catheterization. However, data looking at cystourethroscopy in women suggests that 2% lidocaine gel does little to relieve discomfort over lubricant alone. There are no studies looking at whether 2% lidocaine gel decreases the pain associated with multichannel urodynamic testing when compared to using lubricant alone. The purpose of this study is to determine a difference in patient reported pain levels before, during, and after multichannel urodynamics in patients treated with 2% lidocaine gel or water based lubricant. We hypothesize that lidocaine gel will decrease pain levels when compared to lubricant gel.

This study design is a prospective double blinded randomized controlled trial.

Participants will be randomized to the 2% lidocaine gel or the lubricant gel group after informed consent is obtained and immediately before undergoing multichannel urodynamics. Sequentially numbered sealed opaque envelopes containing the identity of the study arm will be used for randomization. The urogynecology clinic nurse will prepare the selected gel (either the 2% lidocaine gel or the water based lubricant) on the procedure field without any identification. Since the gels look identical, both the examiner and the patient will be blinded to their assigned arm. The participant will undergo the standard clinic exam in standardized order, which consists of perineal/vulvar sensation exam, measurement of post void residual, cotton tipped swab test, pelvic organ prolapse quantification measurements, pelvic exam with speculum, bi-manual exam, and multichannel urodynamic testing. The study gel will be applied to the red robinson catheter for in and out catheterization, the cotton tipped swab, and the bladder catheter for multichannel urodynamic study. The participant will be asked for their pain level at specific points (before the start of the exam, after placement of the bladder catheter, immediately after completion of the study, 30 minutes after completion of the study) using the Wong-Baker pain scale. At the conclusion of the procedure, the participant will be given a short survey to complete about their expectations of the procedure and their pain level. The practitioner/investigator will also be given a short survey to complete at the end of the examination to assess their idea of the patient's comfort level during the procedure. Data will be entered into a database for analysis using the independent samples t test, the Mann-Whitney U test, and the chi square test.

We will specifically be using Lidocaine Hydrochloride Jelly USP, 2% and Surgilube (Savage Laboratories). Surgilube is a water based lubricating gel used during gynecologic exams. It is available in 5g individually wrapped sterile packets. Lidocaine gel is also readily available for use in the gynecologic clinics, available in 5ml individually wrapped sterile packets. Both are clear, viscous, odorless, gels that are visually identical. Currently both are used in the standard urogynecologic exam, depending on operator preference.

All patients scheduled for urodynamic testing will be invited to participate.

• Study Type: Interventional
• Enrollment (Actual): 90
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • Los Angeles, California, United States, 90033
      • LAC USC Womens clinic

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Women 18 years of age or older
• Scheduled to undergo multichannel urodynamic study
• Able to give informed consent
• Able to read and write in English or Spanish

Exclusion Criteria:

• Any contraindication to multichannel urodynamic study
• Allergy to water based lubricant or lidocaine
• Any active pelvic or lower urinary tract infection

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: 2% lidocaine gel; Subjects in this arm will have all urethral catheters and urethral cotton tipped swabs prepared with 2% lidocaine gel before use in the examination.	Drug: 2% lidocaine gel; 2% lidocaine gel will be used to coat the urethral catheters and cotton tipped swab before use during the examination.; Other Names: Lidocaine Hydrochloride Jelly USP, 2%
Active Comparator: water based lubricant; Subjects in this arm will have all urethral catheters and urethral cotton tipped swabs prepared wtih water based lubricant before use in the pelvic floor examination.	Drug: Water based lubricant; Water based lubricant will be applied to all urethral catheters and cotton tipped swabs before use in the pelvic floor examination.; Other Names: Surgilube (Savage Laboratories)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pain During the Pelvic Floor Examination	Subjects will be asked to report their pain level using the Wong Baker pain scale at the beginning of the exam, after a cotton tipped swab test, after the urodynamic catheters are placed in the urethra, and then 30 minutes after the completion of the exam. The Wong Baker pain scale ranges from 0 (no pain) to 10 (worst pain possible).	30 minutes after completion of exam

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Embarrassment With Pelvic Floor Examination	The participants will be asked to report their level of embarrasment during the exam using a Likert scale from 1 (no embarrassment) to 5 (most embarrasment possible) at 30 minutes after completion of the exam.	30 minutes

Collaborators and Investigators

• Sponsor: University of Southern California
• Investigators: Principal Investigator: Vanessa Sun, M.D., University of Southern California

Study record dates

Study Major Dates

• Study Start: December 1, 2011
• Primary Completion (Actual): April 1, 2012
• Study Completion (Actual): April 1, 2012

Study Registration Dates

• First Submitted: May 31, 2012
• First Submitted That Met QC Criteria: May 31, 2012
• First Posted (Estimate): June 5, 2012

Study Record Updates

• Last Update Posted (Estimate): January 19, 2015
• Last Update Submitted That Met QC Criteria: January 16, 2015
• Last Verified: January 1, 2015

More Information

Terms related to this study

• Keywords: Pain; Lidocaine gel; Urodynamic testing; pelvic floor examination; Surgical lubricant; Embarrassment
• Additional Relevant MeSH Terms: Pregnancy Complications; Pelvic Floor Disorders; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Anti-Arrhythmia Agents; Central Nervous System Depressants; Peripheral Nervous System Agents; Sensory System Agents; Anesthetics; Membrane Transport Modulators; Anesthetics, Local; Voltage-Gated Sodium Channel Blockers; Sodium Channel Blockers; Lidocaine
• Other Study ID Numbers: HS- 11- 00573