PubMed · 10514657
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H Schulte-Wissermann. 1999. [Difficult birth].. https://pubmed.ncbi.nlm.nih.gov/10514657/
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OBJECTIVE: To assess delivery time and the frequency of dystocia in grand multiparous (GMP) and grand grand multiparous (GGMP) women. METHOD: Labor records from 272 women with parity 4-8 (GMP) and 56 women with parity 9 or higher (GGMP) were retrospectively reviewed regarding duration of labor and the occurrence of dystocia. As a comparison, data from 263 women with parity 1-3 (LMP) and 87 nulliparas (NP) was used. RESULTS: Duration of labor, defined as time from admission of the laboring woman to delivery of the infant, lasted in median 2.0, 2.3 and 3.1 h in LMP, GMP and GGMP, respectively. There was no difference in mean cervical dilatation on admission in multiparous women. In GGMP, the presenting part was more frequently positioned above the pelvic inlet at time of admission. In multiparous women admitted during the latent phase, the active phase of labor lasted in median 3.7 h in GMP and 4.7 h in GGMP, significantly longer than 2.9 h in LMP. During the active phase of labor, GGMP experienced arrest of cervical dilatation more frequently than the LMP. In parous women, there was a positive relationship between parity and duration of the active phase of labor as well as the duration of labor. Infant's birth weight increased by parity. CONCLUSION: Duration of the active phase of labor increased after the fourth child. Failure of descent of the presenting part during the first stage of labor in addition to arrest of cervical dilatation was associated with a high cesarean section rate in the GMP woman.
UNLABELLED: Shoulder dystocia is defined as a standstill of delivery after the birth of the head and is attributed to an insufficient rotation of the shoulder. Risk factors include a history of prior macrosomia or shoulder dystocia, maternal obesity or excessive weight gain during pregnancy, maternal diabetes or postdate pregnancy and prolonged descent or midpelvic operative delivery. Neonatal morbidities associated with traumatic birth include fetal hypoxia with acidosis and permanent brachial plexus injury. THERAPY: After the recognition of a shoulder dystocia a series of steps should be undertaken beginning with cutting or extending the episiotomy, McRobert's Manoeuvre, Wood's Manoeuvre and delivery of posterior arm. A tocolytic administered as a bolus or general anesthesia also may be needed. Documentation should include the exact time the dystocia was recognized by the midwife and/or obstetrician, the time at which intervention was started and a detailed operative report.
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