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OP13.08: Failure of vacuum delivery is associated with a narrow subpubic arch angle
Author(s) -
Rizzo G.,
Bacigalupi A.,
Galeazzi L.,
Aloisio F.,
Quarto A.,
Piscicelli C.
Publication year - 2018
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.19509
Subject(s) - medicine , vacuum extraction , interquartile range , vaginal delivery , coronal plane , incidence (geometry) , cephalopelvic disproportion , pregnancy , obstetrics , surgery , caesarean section , radiology , physics , biology , optics , genetics
Methods This a secondary analysis of women undergoing at 3638 weeks of gestation an ultrasongraphic examination to evaluate the delivery outcome. At this time SPA width was measured from the reconstructed coronal plane of three-dimensional (3D) volumes obtained translabially (WS80 Samsung Medical Seoul Korea) and data were not available for the attending physician. Among this pregnancies 241 underwent an attempt of VE delivery. Mode of delivery was categorized into successful vaginal VE, or failed VE, including all infants who were delivered with a VE attempt followed by an emergency Caesarean sections. The role of SPA values in predicting failed VE was analyzed together with maternal fetal and obstetrical characteristics. Conclusion A narrow SPA is associated with an higher incidence of failed. This should be considered when choosing the mode of delivery. 241 pregnancies