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J Korean Soc Emerg Med > Volume 21(6); 2010 > Article
Journal of The Korean Society of Emergency Medicine 2010;21(6): 867-871.
Usefulness of Local Anesthesia for Urethral Catheterization
Ssin Young Seoung, Yang Weon Kim, Mi Ran Kim, Yoo Sang Yoon
Department of Emergency Medicine, Inje University College of Medicine, Busan, Korea. 101mars@hanmail.net
Urethral catheterization is a commonly done, painful procedure, but few studies have evaluated the use of topical anesthesia prior to catheterization. This study was designed to assess the effect of topical anesthetics (2% lidocaine gel) prior to uretheral catheterization.
This study was a prospective, randomized, case-controlled trial conducted in an emergency department of a university teaching hospital. The 54 subjects were alert, cooperative male adults. Patients in the experimental group were catheterized after injection of topical lidocaine gel in their urethras, and a wait of 3 minutes. Patients in the control group were catheterized with a urethral catheter that was coated by plain lubricant. After each procedure, the patients indicated their subjective assessment of pain on a 100 mm visual analog scale (VAS). We assessed VAS at 4 times: during the procedure, at the end of the procedure, and at 3 and 6 hours after the procedure. SPSS 17.0 was used for statistical analysis.
The 54 patients were evenly distributed between the 2 study groups. Mean age was 50 years (range 28-71) in the control group, and 54 years (range 27-70) in the experimental group. The mean reduction in VAS values in the experimental group was 27 mm during the procedure, and 23 mm at 6 hours after the procedure.
Use of a topical lidocaine gel during urethral catheterization results in significant reduction in pain compared to topical lubricants. This benefit is provided both during the procedure as well as up to 6 hours after the procedure.
Key words: Urinary catheterization, Local anesthesia, Lidocaine
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