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  • Title: Sonographic confirmation of placental detachment during placental delivery for uterine inversion prevention.
    Author: Yonetani N, Kaji T, Shirakawa A, Sogawa E, Yoshida A, Mineda A, Maeda K, Irahara M, Iwasa T.
    Journal: J Obstet Gynaecol Res; 2023 Nov; 49(11):2644-2648. PubMed ID: 37551066.
    Abstract:
    AIM: To evaluate the usefulness of transabdominal sonographic confirmation of placental detachment in preventing uterine inversion. METHODS: This was 14-year retrospective cohort study that included women who had transvaginal deliveries in our hospital. We introduced routine transabdominal ultrasonography during placental delivery to prevent uterine inversion. Followed by the confirmation of placental detachment by ultrasonography, we started placental delivery procedure. The frequency of uterine inversion during placental delivery was compared before and after the ultrasonography was introduced. Moreover, the duration of the third stage of labor and bleeding volume during labor were compared between the ultrasonography performing group (USG group) and the non-performing group (non-USG groups). RESULTS: Five thousand and eighty-one women, including 1724 and 3357 women who delivered before and after the ultrasonography was introduced, respectively. The frequency of uterine inversion after the introduction of the ultrasonography system was significantly reduced compared to that before the introduction (0.03% vs. 0.23%, p = 0.03). Even after the introduction of ultrasonography, the actual rate of performing ultrasonography remained 54.1% due to various restrictions. The mean duration of the third stage of labor in the USG group was slightly longer than that in the non-USG group (8.4 ± 5.0 vs. 6.8 ± 3.6, p < 0.01). The mean bleeding volume during labor in the USG group was higher compared with the non-USG group (457 ± 329 vs. 418 ± 285, p < 0.01). CONCLUSIONS: Transabdominal sonographic confirmation of placental detachment may be useful in preventing uterine inversion.
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