Cupids Health

Vaginal dinoprostone versus placebo for pain relief during intrauterine device insertion: a systematic review and meta-analysis of randomised controlled trials: The European Journal of Contraception & Reproductive Health Care: Vol 0, No 0


Objective

To systematically and meta-analytically investigate the efficacy and safety of vaginal dinoprostone versus placebo in pain relief during intrauterine device (IUD) insertion.

Methods

PubMed, Scopus, Web of Science, and Cochrane Library were screened till 1 October 2020. Only randomised placebo-controlled studies were included and assessed for risk of bias. Main outcomes included IUD insertion related pain, patient satisfaction, provider ease of IUD insertion, and side effects. Pooled outcomes were summarised as standardised mean difference (SMD), weighted mean difference (WMD), or risk ratio (RR) with 95% confidence interval (95% CI).

Results

Five studies were included, comprising 862 patients; equally 431 patients received vaginal dinoprostone and placebo. All studies showed an overall low risk of bias. When compared to placebo, dinoprostone significantly correlated with decreased pain at tenaculum placement (SMD = −0.79, 95% CI [−1.43, −0.16], p = 0.01), decreased pain at uterine sounding (SMD = −0.88, 95% CI [−1.54, −0.22], p = 0.009), decreased pain at IUD insertion (SMD = −1.18, 95% CI [−1.74, −0.61], p < 0.001), decreased need for additional analgesia (RR = 0.34, 95% CI [0.22, 0.53], p < 0.001), increased patient satisfaction (SMD = 1.41, 95% CI [0.62, 2.20], p < 0.001), and increased provider ease of IUD insertion (SMD = −1.17, 95% CI [−1.62, −0.73], p < 0.001). Fever was statistically significantly higher in dinoprostone versus placebo group (RR = 3.73, 95% CI [1.47, 9.44], p = 0.006). All other side effects—including nausea, vomiting, shivering, diarrhoea, abdominal cramps, vasovagal attack, uterine perforation, and postprocedural bleeding—did not substantially differ between both groups.

Conclusions

This first ever meta-analysis advocates that dinoprostone compared with placebo is safe, effective, and yields favourable analgesic outcomes during IUD insertion.



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