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[Planned delivery by oxytocin infusion in relation to cephalic dystocia]. 1994

C H Zhang, and L M Zhang, and A H Zhang
Central Hospital of Zhong Yuan Oil Field, Puyang of Henan.

To investigate the effect of initiating labor by oxytocin infusion on the outcome of delivery in cephalic presentation, the dystocia rate and final modes of delivery were analyzed in 3,090 cases of head presentation using oxytocin infusion and 2,982 cases with spontaneous onset of labor as control group. The results showed that 562 of the cases using oxytocin developed cephalic dystocia, a rate of 18.2%, while 371(12.4%) of the control group had dystocia. Besides, cephalic dystocia, rates of episiotomy, vacuum extraction and cesarean section were all significantly higher in the oxytocin group than those in the control (P < 0.005). Data also showed that the higher dosage, the more frequency and the longer time of pitocin infusion the higher the rate of dystocia.

UI MeSH Term Description Entries
D007746 Labor Presentation The position or orientation of the FETUS at near term or during OBSTETRIC LABOR, determined by its relation to the SPINE of the mother and the birth canal. The normal position is a vertical, cephalic presentation with the fetal vertex flexed on the NECK. Fetal Presentation,Presentation, Fetal,Fetal Malpresentation,Fetal Malpresentations,Malpresentation, Fetal,Presentation, Labor
D007751 Labor, Induced Artificially induced UTERINE CONTRACTION. Induced Labor,Induction of Labor,Labor Induced,Labor Induction,Induced, Labor,Induction, Labor,Inductions, Labor,Labor Inductions
D010121 Oxytocin A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION. Ocytocin,Pitocin,Syntocinon
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D004420 Dystocia Slow or difficult OBSTETRIC LABOR or CHILDBIRTH. Dystocias
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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