Uterine torsion and intrauterine growth restriction: Case report and systematic literature review

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PURPOSE: Uterine torsion (UT) in pregnancy is a rare condition in obstetric practice. It is defined as a rotation of the uterus of more than 45° around its long axis. Presentations are varied and, most of the time, this condition is recognized at laparotomy or cesarean section (CS). The aim of this study is to summarize the latest evidence about UT in pregnancy. METHODS: A systematic research of the literature was conducted fetching all papers published from March 2006 to June 2020. We collected data regarding clinical features, treatment, and feto-maternal outcomes. Finally, we reported data of a case of UT associated with intrauterine growth restriction (IUGR) diagnosed and treated at our institution. RESULTS: According to our search strategy, 38 articles were included. In 66% of the cases, acute symptomatology was present at the onset, most frequently abdominal pain was reported. In one-third of the cases, UT was diagnosed during CS without clinical suspicion. Only in two cases, including our case, IUGR was reported. Most (66%) of the cases presented a 180° torsion. In the majority of the cases, a CS was performed also with a deliberate or accidental posterior hysterotomy. One and six cases of maternal and fetal death were, respectively, reported. CONCLUSION: UT is an infrequent obstetric condition but should be considered in case of abdominal pain, vomiting, or shock presentation during pregnancy. It could lead to a reduction in uterine blood flow contributing to poor placental perfusion, even though more evidence is needed to clarify this link.

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