Comparison between cooled and room temperature lidocaine gel in reducing urethral discomfort during cystoscopy
Objective: Prospective randomized control trial study to compare pain score between room temperature and cooled 2% lidocaine gel during instillation and cystoscopy
Material and method: Male patients who had indication for cystoscopy between September 2017 and December 2017 at Rajavithi hospital were included in this study . They were prospectively randomized into 2 groups .Group I receive 10 ml of 2% lidocaine hydrochloride gel at 4 ◦C and Group II receive 10 ml of 2% lidocaine hydrochloride gel at room temperature (22 ◦C). After instillations of the gel and at the end of cystoscopy the patients were immediately asked to score the pain level using a NUMERIC RATING SCALE (NRS) FOR PAIN
Result: A total of 70 male patients were enrolled in the study then were randomized into 2 groups . No significant differences in patient age and numbers of previous cystoscopy between the two groups . The pain scores were analyzed using the Mann-Whitney U test. Pain perception scores during gel instillation were not statistically different between the groups ( P= 0.496 ). Pain perception scores during cystoscopic procedure in group I were statistically lower than in group II (P < 0.05)
Conclusion: Transurethral cooled 2% lidocaine gel significantly reduced the pain during cystoscopy when compare with instillation of room temperature 2% lidocaine hydrochloride .But did not significantly reduce pain perception score during gel instillation
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