[Introduction to obstetrical endocrinology. 3. Maintenance of pregnancy and the onset of labor (2). Labor onset--a signal from the fetus].
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In 12 primiparae who--on term--did not have spontaneous contractions but a Bishop score greater than 7, Rheobase was measured and there after labour induced by amniotomy. A second evaluation of Rheobase followed one hour after amniotomy. Results show that one hour after rupturing the membranes the Rheobase values decreased significantly (p less than 0,01). The correlation between initial Rheobase values and duration of delivery was still more significant (p approximately 0,001). The possible importance of Rheobase evaluation in the selection of pregnant women on term for elective induction (baby by appointment) is discussed.
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The possible significance of subconjunctival bleedings (hyposphagmas) as a symptom for other pathological changes of the eye was studied in a group of 354 postpartum patients. They were found in 10.5% of the cases. A relatively higher frequency occurred in primiparas. No other maternal factors than parity were detected as of statistically significant influence. A slightly higher percentage in mothers with large newborn (above average cranial circumference) indicates a relationship to the necessary bearing-down effort. In a second study, 49 postpartum women with subconjunctival bleeding were examined by an ophthalmologist. Neither any intraocular or retrobulbar bleeding nor any other grievous damage to the eye were found. In accordance with the literature we recommend, that highly myopic pregnant women (even with a previous history of retinal detachment, but ophthalmologically sufficiently treated) should undergo induced delivery. However, the approach to pregnant women with retinal detachment occurring and treated during pregnancy, or to glaucoma-patients with risk to a small remaining visual field, should be more careful. In those cases, a vaginal operative delivery procedure (forceps, vacuum-extraction) is recommended. Nevertheless, one should consider individual wishes of the mother, when striving to diminish the risk to the foetus. The same applies to irrational fears related to previously damaged (and possibly only functional) eye.
Attitudes and expectations of future parents towards the birth experience have changed thoroughly in the past years. In a prospective trial with 95 women we evaluated whether prepartal intentions for a common birth experience were actually carried out and what changes occurred during the past 5 years. 95 women with uncomplicated pregnancies filled in a questionnaire in the 38th week of pregnancy and several days after birth. Behavioural intentions and their realisation correlated well. The changes of attitude became evident comparing our results with those of a survey made 5 years ago in the same hospital. Depending on the social status of the couples, an increase in the participation of fathers of up to 30% was noted. 92% of the couples of social stratum B experienced childbirth together. Participation in any kind of birth preparation was comparably low and seems improvable. Women of lower social status, in particular, should be supported instead of discouraged to attend birth preparation courses.
The present pilot study is embedded in a larger longitudinal investigation on early parent-child interaction. Variables related to pregnancy, emotional birth experience and hospital conditions have been assessed in a sample of 69 parents who were given questionnaires before and after the birth of their first child. A critical evaluation of delivery room and hospital conditions indicated new ways of psychological support during the period of early parent-child contact. Further, the effect of infant caretaking courses on later paternal behaviour was evaluated by comparing two groups of fathers: "pretrained" fathers who had attended prenatal classes in infant care and untrained fathers who had not. The questionnaire data revealed that pretrained fathers diapered and fed the newborn significantly more often than the untrained fathers. Besides, there were already considerable differences between the two groups in the experience of feelings when fathers first saw their child. The present study suggests that the general trend of father's involvement in pregnancy, birth and infant care could be facilitated by adequate preparatory courses.
Vaginal application of tablets containing prostaglandin at term in pregnant women with a favorable cervical score is a very efficacious method of induction of labour. Due to the motility of the women they consider this method of induction as almost natural. We, therefore, aimed at discussing the optimal procedure in low-risk pregnancies at due date, by means of a prospective randomised trial. In 345 women with a favourable cervical score, labour was either induced by means of intravaginal application of tablets containing PGE2 according to a precise plan, or spontaneous onset of labour was awaited while CTG-controls were performed on an outpatient basis every second day until the 42nd week of pregnancy was completed. 80 per cent of the nulliparas and 96.3 per cent of the multiparas of the induction group delivered within 24 hours of the first tablet application. All pertinent delivery intervals were significantly shorter in this group compared to those women where spontaneous onset of labour was awaited. The incidence of prolonged labour was low in both groups and not significantly different. Only 4.2 per cent of the women in the group where spontaneous labour was awaited, reached the completed 42nd week of pregnancy. Only one woman had to be induced because of a suspicious CTG. The rate of operative deliveries was lower in the induction group (1.1% versus 3.8% Caesarean sections). With the exception of one foetal death due to a cord complication three days after the due date the foetal outcome was excellent in both groups. The acceptance of the procedure was tested by means of a questionnaire during the post partum period.(ABSTRACT TRUNCATED AT 250 WORDS)
Telemetric signal transmission represents a suitable technical concept for combining free mobilisation with continuous electronic monitoring of birth. The obstetric aspect of telemetric birth monitoring is discussed on the basis of a clinical-statistical analysis: a group of 127 women in labour (64 primigravidae and 63 multigravidae) were examined and the specific effect of mobilisation on obstetrically relevant parameters was analysed. The results show the advantages of this method of birth management. Freedom of decision as regards choice of posture during birth, better subjective control and less painful labour, better birth mechanics, more effective labour, shorter duration of birth, better heart-rate patterns, optimal exterior conditions and an active basic attitude of the woman in labour are the proven advantages of this method. The highly significant relationship between the degree of mobilisation and the duration of birth is emphasised as one of the most important results.