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Vacuum extraction. Use in a community hospital setting.

The history of vacuum extraction and its use in a specific community hospital setting is reviewed. Basic principles for successful use of the extractor are cited. Two hundred twenty-eight consecutive vacuum extraction cases occurring in an 18-month period are evaluated for indications and outcome. The most common indications were fetal distress, 41.6%; malposition of the vertex 35%; and dysfunctional labor 14.6%. Several subjects exhibited more than one condition influencing the decision to use the extractor. Particular reference is made to the occurrence of significant trauma to the fetal scalp in 18.7% of cases. Careful choice of candidates for vacuum extraction and adherence to principles of application and traction technique are emphasized to reduce the incidence of fetal scalp trauma.

Adolescent↗

Large-for-gestational-age neonates: anthropometric reasons for shoulder dystocia.

From 1960 to 1980 at Memorial Hospital Medical Center--Miller Children's Hospital, the mean birth weight for term-size neonates increased from 3381 to 3458 g inspite of increases in ethnic groups known to have smaller neonates. More significantly, the incidence of macrosomic neonates (birth weight greater than 4000 g) increased from 7.0 to 10.7%. Because of this marked increase in the incidence of neonatal macrosomia, prospective study was designed to characterize the macrosomic neonate anthropometrically. The results of this study revealed that neonates experiencing shoulder dystocia had significantly greater shoulder-to-head and chest-to-head disproportions than did macrosomic neonates delivered by cesarean section for failed progress in labor or macrosomic neonates delivered without shoulder dystocia. In addition, neonates of diabetic mothers also showed significantly greater shoulder-head and chest-head size differences than did neonates of nondiabetic mothers of comparable weight. These data suggest that antenatal ultrasonic measurements to compare chest-head size difference in fetuses suspected to be macrosomic and in diabetic pregnancies could be of value in selecting patients for the appropriate route of delivery.

Adult↗

Floating fetal head in primiparas at term.

A total of 924 pelvimetries made for floating fetal head at term in primiparas was analyzed according to the pelvic parameters and outcomes. More android and platypelloid type pelves, and more OP position and Naegele's obliquities were found. Significant shortening of obstetrical conjugate. A-P diameter of actual inlet and reduced Mengert area of the inlet were the common characteristics in this series. One third of the patients required abdominal delivery, and half of the vaginal deliveries needed instrumental help.

Female↗

[Indication for caesarean section for multiple pregnancy (author's transl)].

Indications for caesarean section in 213 cases of multiple pregnancy were retrospectively analysed for a period between 1969 and 1980. The average rate of caesarean sections was 6.1 per cent, almost identical with that of monocyesis (5.9 per cent). Perinatal mortality, in particular that of the second twin, may be reduced by expanded indication for caesarean section to cope with malpresentation in cases of multiple pregnancy. Caesarean section is recommended as the primary approach to multiple pregnancy beyond the 34th week with three or more newborns.

Cesarean Section↗

[Vasa praevia].

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Female↗