Comparative effectiveness of four-point versus two-point paracervical block using 1% lidocaine for manual vacuum aspiration (MVA) in incomplete abortion: a randomized controlled trial
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Abstract
Background: Paracervical block is one of the mainstays for pain control during Manual Vacuum Aspiration of incomplete abortions. This study assessed the effectiveness of four versus two needle points paracervical block of 1% lignocaine, need for additional analgesia and satisfaction among women undergoing manual vacuum aspiration for incomplete abortion in OAUTHC, Ile-Ife.
Objective: Comparative effectiveness of four-point versus two-point paracervical block using 1% lidocaine for manual vacuum aspiration in incomplete abortion
Methods: One hundred and twenty women who were eligible for the study were randomized to two equal groups (A and B), a randomized controlled trial, conducted between January 2022 and February 2023. We analyzed the data using SPSS version 20. Paired T test, independent T test Chi square, and Fishers’ exact tests were applied for continuous and categorical variables as appropriate. P value < 0.05 was considered as statistically significant.
Results: The Intra-operative and Postoperative VAS was significantly higher in the two-point PCB group (group B) compared to the four-point PCB group (group A) (t = −3.37, CI −4.12 - −2.68. P < 0.05 intra-operative, t = 7.16, CI 2.63 - 4.63. P < 0.05 post-operative). The need for additional analgesia and mean VAS of those in the two-point group was significantly higher than that of the four-point group with higher overall satisfaction rate in the four-point group (t = 7.16. CI 2.63 - 6.88. P < 0.0001).
Conclusions: The four-point Paracervical block with 1% lignocaine is more effective in reducing pain during manual vacuum aspiration compared to the two-point paracervical block. It equally has added advantage of a higher overall satisfaction rate and reduced need for additional analgesia.
Keywords: Abortion care, Manual vacuum aspiration, Four-point paracervical block, Two-point paracervical block
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