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- Title
OP02.11: Intrapartum sonographic features of cephalopelvic disproportion in occiput anterior fetuses with protracted active phase of labour.
- Authors
Dall'Asta, A.; Minopoli, M.; Cagninelli, G.; Sorrentino, S.; Corno, E.; Melandri, E.; Di Tonto, A.; Volpe, N.; Ghi, T.
- Abstract
Recent data from our group showed that in protracted active phase of labour OA fetuses submitted to Caesarean delivery (CD) appeared to pool in two clusters, one characterised by deflexed head and high station and another featured by high station and no obvious sign of malposition nor malpresentation, as it occurred in the reported case, and OSA/AoP ratio > 1.19 and a OSA/HPD ratio <2.72 showed a 100% and 77.8% sensitivity, respectively, for CD for labour dystocia. On examination head position was left occiput anterior (LOA) and the head station -2 as confirmed by a narrow angle-of progression (AoP) measuring 96.3° (figure 1A) and a long HPD measuring 6.2 cm (figure 1B); caput and moulding were also noted (figure 1C). A 35-year-old nullipara at 41 weeks of gestation was admitted in the active phase of the first stage of labour.
- Subjects
LABOR (Obstetrics); FIRST stage of labor (Obstetrics); CESAREAN section; FETUS
- Publication
Ultrasound in Obstetrics & Gynecology, 2021, Vol 58, p64
- ISSN
0960-7692
- Publication type
Article
- DOI
10.1002/uog.23936