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[The ideal time for delivery].

The authors analyze the results of a three-year study of the variations of the degree of fetal distress according to the time of spontaneous delivery. The degree of fetal distress during labour is definitely high if the delivery takes place during the 42nd week. In primipara, where labour lasts more than 6 hours, this results in a level of cesarean sections due to fetal distress after 41 weeks which is significantly high (P less than 0.001) compared to the preceding three weeks. The authors conclude that, in terms of minimum fetal distress, the ideal delivery time would be before 41 full weeks of amenorrhea; as for the stagnation of the dilatation, the same observation is made.

Adult↗

[Prognostic factors in delivery with breech presentation. Apropos of 357 single-fetus pregnancies at term].

For a better definition of the factors which could be at the origin of neonatal distress, 357 cases of mono-fetal term pregnancies with breech presentation were retrospectively studied between January 1st, 1984 and December 31st, 1989. The population is identical to that of all deliveries except for a higher percentage of first pregnancies. The risk of emergency caesarean section mostly concerns large primiparous women, underweight, with normal or large pelvis. Caesarean section is absolutely necessary if the biparietal diameter exceeds 100 mm, if the head is positioned in hyper-deflection and/or if the pelvis is defective. Without being mandatory, the procedure is preferable in case of chronic fetal distress or scarred uterus. On the contrary, neither the age of the mother nor the age of the pregnancy, nor the type of the breech, nor the number of pregnancies have any effect on the prognosis. The current rate of caesarean section is 47.9 per cent with almost complete disappearance of the large breech extraction (0.6 per cent) and the Mauriceau's maneuver (0.3 per cent). The corrected mortality rate is 0.28 per cent. In addition to the parameters considered in our coefficient of risk of breech delivery, it was noted that a pre-pregnancy weight exceeding 70 kg or a weight gain of more than 15 kg represent unfavorable factors. It is desirable to calculate prospectively the severity of the risk in small size cases, when the biparietal diameter ranges between 96 and 100 mm, or when one of the diameters of the bony pelvis is decreased.

Adolescent↗

Maternal height and weight gain during pregnancy as risk factors for cesarean section.

Maternal height, maternal weight, infant weight, and maternal weight gain during pregnancy were examined as factors associated with the likelihood of delivery by cesarean section for cephalopelvic disproportion (CPD). Sixty-four women, delivered by cesarean section for CPD, were compared with matched controls who delivered vaginally. The only factor associated with an increased risk of cesarean section for CPD was short stature: women shorter than 63 inches were 4.9 times more likely to have CPD than taller women.

Adult↗

Destructive operation in obstetric practice in Nigeria.

An analysis of the use of destructive operation in obstetric practice at the University of Nigeria Teaching Hospital Enugu over a nine year period has been carried out. The hospital is the only Teaching Hospital in the State of six million people, and serves a dual role of tertiary and primary care centre. The incidence of destructive operation fell from 0.29% in the first three years to 0.06% and 0.05% in the second and third year periods respectively. The main indication for the operation was obstructed labour. The incidence of maternal morbidity and mortality was high and was related more to the indications for the destructive operation then the actual operation. Suggested methods for eliminating its use and complications include health education, provision of efficient obstetric services and adequate training of available manpower.

Abortion, Induced↗

[Radiation exposure of patients examined by a digital x-ray unit].

Performance principles are given for a digital x-ray unit. Radiation doses are compared with a standard diagnostic x-ray unit. It is shown that a digital x-ray unit provides frontal view radiographs with 40 +/- 10 mR radiation dose which is 40 times less than that for the film.

Female↗

[Special obstetric problems in managing labor following cesarean section].

The prevalence of primary repeat cesareans in the 37th and 38th weeks of gestation and the highest rate of premature births explain the shorter duration of pregnancy associated with this mode of delivery. In cases where ecbolics were administered labour was prolonged and the rate of secondary repeat cesareans was higher. Late rupture of the amniotic sac seems to increase the chances of successful vaginal delivery. Biparietal cranial diameter had no influence on the mode of delivery; significantly higher values were found only in cases of cranial-pelvic incongruity. The frequency of primary repeat cesareans increased in proportion to the age of the mother. The time interval since the previous cesarean delivery is of no importance. Birth weights were lower in the group of elective repeat cesareans owing to lower gestational age. It does not always appear justified to rule out a vaginal birth in cases of twins. Regional anesthesia is not a contraindication.

Adult↗

[Obstetric problems of newborn infants with a birth weight over 4,500 g].

Analysis of birth records of neonates a birth weight of 4,500 g or more (n = 83) has been made in order to compare the course of pregnancy and delivery to a normal birth weight of 3,000-3,500 (n = 100) among 14,193 newborns observed from 1983 to 1987 in Obstetric department of district hospital Berlin-Friedrichshain. On both groups mortality rate amounted to nil. Maternal morbidity is mainly caused by delivery injuries and postpartal atony. The perinatal morbidity which accounts for 7.2% is caused to increased acidosis rate (9.6%), complications of birth traumas such as shoulder dystocia (4.8%), fractures (2.4%) and paresis of nerve plexes (2.4%). The antenatal ultrasound assessment of fetal weight has been emphasized. Caesarean section is advised in cases of a fetal weight of 5,000 g, or more malpresentation and in a primipara with a history of previous caesarean section and with fetal weight more than 3,500-4,000 g. The problems of shoulder dystocia are being discussed.

Birth Weight↗