A historical birth cohort study of 1116 women born between August 1 1944 and April 15 1946 in the Wilhelmina Gasthuis hospital in Amsterdam, the Netherlands, was set up to study the short- and long-term effects of a limited period of extreme nutritional deprivation in the winter of 1944-1945 in the Western Netherlands. The degree of food deprivation is evidenced by a dramatic decline in third trimester pregnancy weight gain and infant birthweight. All women were traced and 84% (683/813) of survivors presently resident in the Netherlands agreed to be interviewed in their homes. There were no differences in characteristics at birth between interviewed and uninterviewed survivors. The women who were interviewed had 1299 offspring and were able to recall birthweight of all of them. Additional birthweight information from hospital and well-baby clinic (WBC) records is available for about half of the offspring. Since the famine was imposed on the entire population of a well-defined area, whose opportunities to obtain food elsewhere were severely restricted, and the women from this hospital cohort were predominantly lower middle class, the relationship between fetal nutrition and subsequent health outcomes in this cohort is not likely to be confounded by unmeasured attributes related to social class. In addition, selective losses to follow-up could be excluded, which makes the Dutch famine birth cohort a valuable resource for future studies in perinatal epidemiology.
The rise in adolescent pregnancy in the 20th century has been influenced by declining age at menarche, increased schooling, delay of marriage, inadequate contraception and poverty. The main problems are preterm labor, hypertensive disease, anemia, more severe forms of malaria, obstructed labor in very young girls in some regions, poor maternal nutrition and poor breastfeeding. In many regions HIV infection is an important problem. The infants of adolescent mothers are more prone to low birth weight and increased neonatal mortality and morbidity. Antenatal care is often inadequate. The most important problem is the increased incidence of preterm labor and delivery, the youngest age groups running the highest risk. Technically, care of adolescents during labor need not differ from care of older women; most adolescents are not at increased risk during labor, although, they are more in need of empathic support. Generally, care of pregnant adolescents should be adjusted to their specific needs.
During a 28-year period the incidence of thrombosis and pulmonary embolism (TE) in pregnancy remained practically equal (0.7%), the incidence of puerperal TE was higher (2.3%) but decreased during the last 7 years. Puerperal TE was influenced by age, mode of delivery, hypertension and prophylactic anticoagulant therapy. TE during pregnancy was not noticeably correlated with age and hypertension. TE during pregnancy and in the puerperium are closely related diseases, but their epidemiological characteristics are apparently distinct. Both are associated with a high rate of preterm deliveries and a high perinatal mortality rate.
The results of 90 pregnancies complicated by an ovarian tumor are analysed. On this basis it seems advisable to follow a 'wait-and-see' policy until the 16th week. Tumors persisting into the second trimester can best be extirpated between the 16th and 20th week. Ovarian tumors present after the first trimester can lead to serious complications. However, an ovarian tumor discovered in the second half of pregnancy calls for temporization of treatment. Cesarean section at term with simultaneous extirpation of the tumor is the treatment of choice.
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