Occiput transverse position - UpToDate
2023年6月6日 · OT position is a fetal cephalic malposition in which the sagittal suture and fontanels align 0 to <15 degrees from the transverse plane of the maternal pelvis . Although the position is common before labor begins, most OT fetuses spontaneously rotate as the fetus descends along the birth canal during labor and deliver in the OA, or less ...
Occiput transverse position - UpToDate
2022年3月8日 · Occiput transverse (OT) position is a type of fetal cephalic malposition in which the sagittal suture and fontanels align 0 to <15 degrees from the transverse plane of the maternal pelvis . Although the position is common before labor begins, most OT fetuses spontaneously rotate during labor as the fetus descends and deliver in the occiput ...
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We studied the following risk factors for malposition: station and cervical dilatation at epidural placement, induction of labour, parity and macrosomia. Malposition, defined as all occiput posterior and occiput transverse positions, was assessed at 5 cm of dilatation because of our policy of systematic manual rotation for malpositions.
Face and brow presentations in labor - UpToDate
2023年6月16日 · The vast majority of fetuses at term are in cephalic presentation. Approximately 5 percent of these fetuses are in a cephalic malpresentation, such as occiput posterior or transverse, face (figure 1A-B), or brow . Diagnosis and management of face and brow presentations will be reviewed here.
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2024年9月6日 · - Occiput anterior position - Occiput posterior position - Occiput transverse position - Occiput posterior and occiput transverse positions - Longitudinal lie cephalic presentation - Pelvimetry 1 - Obstetric diameters of the pelvic inlet; RELATED TOPICS. Acute placental abruption: Pathophysiology, clinical features, diagnosis, and consequences
Clock approach to fetal head position on ultrasound - UpToDate
On ultrasound, the landmarks for determining fetal head positions are the fetal orbits, the midline cerebral echo, and the occiput. The fetal head position can be described by the position of these landmarks with respect to the hour hand on the face of an analog clock.
Occiput posterior position - UpToDate
Occiput posterior (OP) position is the most common fetal malposition. It is important because it is associated with labor abnormalities that may lead to adverse maternal and neonatal consequences, particularly operative vaginal or cesarean birth.
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In 6 cases, the fetal head had rotated over the 6-o'clock position from an occiput posterior or transverse position, resulting in a rotation of>180°. In addition, 6 of the 8 women ending with cesarean delivery had the fetus in occiput posterior position throughout the active phase of labor.
Contributors - UpToDate
Occiput transverse position. Author Aaron B Caughey, MD, PhD Section Editor — Pregnancy complications Professor and Chair Department of Obstetrics & Gynecology Associate Dean for Women's Health Research & Policy Oregon Health & …
Medline ® Abstract for Reference 12 of 'Occiput posterior position'
For the early pushing group, means were 2.2 hours (95% CI 2.1-2.3) for occiput anterior positions, 2.5 hours (95% CI 2.3-2.8) for occiput transverse positions (P<.05), and 3.0 hours (95% CI 2.7-3.3) for occiput posterior positions (P<.05).