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How much misoprostol is safe? – First reported case of second-trimester uterine rupture after a single low dose

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Abstract

With the rising rate of caesarean births, the scenario of fetal demise occurring in a woman with previous caesarean births is becoming more prevalent. The optimal mode of management of intrauterine fetal demise in women with multiple caesarean births presents a challenge for the obstetricians due to absence of a definite protocol with good efficacy, safety and acceptability in these women. The risks of hysterotomy have to be balanced against the risk of uterine rupture with induction. Misoprostol is one of the most common drugs being used in mid-trimester miscarriage but with variable doses. The reports of uterine rupture with previous caesarean scar are rare and have occurred with different doses, making it difficult to counsel women regarding maternal risks. It is difficult to conduct a randomised control trial to address this issue due to limited number of patients and therefore no drug or dosage can be recommended with certainty. We present a unique and first case of second-trimester uterine rupture in a woman with three previous caesarean births and intrauterine fetal demise, after a single low dose of 25 μg vaginal misoprostol. This highlights the need for further research in context of misoprostol dosage in women with more than two previous caesarean births having second-trimester induction of labour.

Authors’ roles – SD was involved with the management of the case, consent and the preparation of the manuscript. SM was also involved with the management of the case and helped with revision and finalising of the manuscript.

Declaration of interests: The authors declare no conflicts of interest. The authors alone are responsible for the writing and content of the paper.

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