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Lidocaine gel versus plain lubricating gel for pain reduction during transrectal sonography (LIPS): A randomized
Su Hyun Nam1, Kye Hyun Kim1, Chahien Choi1
1Department of Obstetrics & Gynecology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Objective:
To compare the efficacy and safety of lidocaine gel and plain lubricating gel in relieving pain during transrectal sonography (TRS) in patients with gynecologic problems.
Methods:
A randomized controlled trial was conducted in 80 participants who were scheduled to undergo TRS. The participants were allocated into the lidocaine gel group and the aqueous gel group at a 1:1 ratio. The intensity of pain during TRS based on the visual analogue scale (0-10 points) and the adverse events were assessed and compared between the two groups.
Results:
The two groups had similar demographic characteristics. Between the lidocaine and aqueous gel groups, there was no significant difference in the pain score at probe manipulation (4.04±2.14 vs. 4.21±2.79; P=0.868), as well as at baseline, probe insertion, and 5min after probe removal. The degree of acceptability of the sonographer also did not differ between the two groups. No acute and delayed adverse events was occurred.
Conclusion:
Intrarectal lidocaine gel for TRS provides no analgesic benefit compared with aqueous gel.
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