The effect of the intrauterine anesthesia using 2% lidocaine for pain reduction during dilatation and curettage operations

Background: Dilatation and curettage (D&C) are common procedures in the assessment of abnormal uterus bleeding. One of the methods in pain reduction during dilatation and curettage is paracervical block, but it does not provide absolute pain reduction. This study was carried out to assess the paracervical block with and without lidocaine consumption to reduce pain during D&C.

Materials and Method:  we conducted a double blind clinical trial on 60cases, candidate for (D&C) under paracervical block from April 2008 to March 2009 in Zahedan. The participants were randomly divided into two groups including intrauterine infusion of 5ml lidocain (2%) and 5ml normal saline (0.9%) after paracervical block. These two groups were compared for pain severity using of independent t and chi-squared tests 15, 30 and 60 minutes after operation and complication and patients satisfaction. 

Results: Findings of this study indicated that there was not any significant difference between two groups’ demographic characteristics and background variables before and during operation. The average of pain severity in 15, 30, and 60 minutes post operation in saline group was 3.8±3.4, 3.9±3.3, 3.4±2.1 and in lidocaine group was 1.8±2.4, 1.8±2.1, 1.8±2.2, respectively. They revealed statistically significant difference in three stages of time.

Conclusion: The addition of intrauterine lidocaine to paracervical block in patients who are candidates for D&C operations may decrease pain after 15, 30 and 60 minutes post-operation without increasing of complications