Faustino R Perez-Lopez1,2, Samuel J Martinez-Dominguez2, Gonzalo R Perez-Roncero2, Adrian V Hernandez3,4. 1. a Department of Obstetrics and Gynecology , University of Zaragoza Faculty of Medicine, Hospital Clinico Lozano-Blesa , Zaragoza , Spain. 2. b Red de Investigacion de Ginecologia, Obstetricia y Reproduccion , Instituto Aragones de Ciencias de la Salud (IACS) , Zaragoza , Spain. 3. c University of Conneticut/Hartford Hospital Evidence-based Practice Center , Hartford , CT , USA. 4. d School of Medicine , Universidad Peruana de Ciencias Aplicadas (UPC) , Lima , Peru.
Abstract
OBJECTIVE: Systematic review and meta-analysis to assess the effects of uterine or paracervical lidocaine application on pain control during IUD insertion. METHODS: PubMed and five other electronic research databases were searched through 15 November 2017 for RCTs comparing lidocaine treatment vs. a control (placebo or no-intervention) to prevent pain during IUD insertion. Searched terms included 'IUD insertion', 'lidocaine' and 'randomised controlled trial'. RCTs evaluating lidocaine treatment before IUD insertion without restriction of language, age and IUD type. Pain measured by visual pain scales at tenaculum placement, IUD insertion and immediate post-IUD insertion. Results of random effects meta-analyses were reported as mean differences (MDs) of visual pain scale (VPS) scores and their 95% confidence intervals (CIs). RESULTS: Eleven RCTs (n = 1458 women) reporting paracervical lidocaine block or uterine mucosa lidocaine application before IUD insertion. Lidocaine produced lower VPS scores during tenaculum placement (MD -0.99, 95% CI: -1.73 to -0.26), IUD insertion (MD -1.26, 95% CI: -2.23 to -0.29) and immediate post-IUD insertion period (MD -1.25, 95% CI: -2.17 to -0.33). CONCLUSION: Lidocaine treatment was associated with modest reduction of pain during tenaculum placement and after IUD insertion.
OBJECTIVE: Systematic review and meta-analysis to assess the effects of uterine or paracervical lidocaine application on pain control during IUD insertion. METHODS: PubMed and five other electronic research databases were searched through 15 November 2017 for RCTs comparing lidocaine treatment vs. a control (placebo or no-intervention) to prevent pain during IUD insertion. Searched terms included 'IUD insertion', 'lidocaine' and 'randomised controlled trial'. RCTs evaluating lidocaine treatment before IUD insertion without restriction of language, age and IUD type. Pain measured by visual pain scales at tenaculum placement, IUD insertion and immediate post-IUD insertion. Results of random effects meta-analyses were reported as mean differences (MDs) of visual pain scale (VPS) scores and their 95% confidence intervals (CIs). RESULTS: Eleven RCTs (n = 1458 women) reporting paracervical lidocaine block or uterine mucosa lidocaine application before IUD insertion. Lidocaine produced lower VPS scores during tenaculum placement (MD -0.99, 95% CI: -1.73 to -0.26), IUD insertion (MD -1.26, 95% CI: -2.23 to -0.29) and immediate post-IUD insertion period (MD -1.25, 95% CI: -2.17 to -0.33). CONCLUSION:Lidocaine treatment was associated with modest reduction of pain during tenaculum placement and after IUD insertion.