ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

The effect of modern antepartum and intrapartum fetal monitoring technics on the outcome of the pregnancy complicated with diabetes was studied by comparing the perinatal mortality of 2 groups of patients whose management differed primarily by the use of these tests. The perinatal death rate was halved to 9.2%, and when corrected for major congenital defects and referred fetal deaths it was 5.3%. Modern fetal diagnostic tests clearly add a degree of objectivity in the management of the diabetic pregnancy not previously available.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Retrospective analysis of 103 samples of amniotic fluid was performed. Twenty-four samples were obtained prior to midtrimester abortion, 31 were from patients who delivered spontaneously, 14 were from patients in whom labor was induced, and the remaining samples were obtained from patients who were delivered by cesarean section. In all normal pregnancies, there was a rising trend in corticosteroid levels in amniotic fluid as the gestation advanced. This was less marked in abnormal pregnancies. There is a suggestive fetal role in initiation of normal spontaneous labor, as reflected by a significant increase in amniotic fluid corticosteroid levels, in patients immediately prior to vaginal delivery as opposed to abdominal delivery. There was a significant correlation between the birthweight of babies born vaginally with the amniotic fluid corticosteroid levels, as compared to the weight of babies born by cesarean section.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

As part of a series of studies on the endocrine consequences of corticosteroid treatment during late pregnancy, the levels of unconjugated estrone (E1), estradiol-17β (E2), and progesterone were followed in maternal plasma and amniotic fluid before and after treatment. Ten gravidas in the 30th-35th gestational week received 12 mg betamethasone daily for 3 days for prevention of idiopathic respiratory distress syndrome (IRDS) and were compared to S controls. The steroid concentrations were determined by radioimmunoassay. The plasma levels of E1and E2were depressed to 38% and 29%, respectively, while that of progesterone was not affected. No significant change of the steroid concentrations in amniotic fluid was observed. The decreased E2: progesterone ratio in maternal blood after betamethasone treatment in the human is in contrast to the increased ratio observed in ruminants after corticosteroid administration and preceding the spontaneous onset of labor. The fall in the E2: progesterone ratio accords with the earlier observed inability of intramuscular corticosteroid treatment of elicit labor in women at this stage of gestation. The earlier demonstrated marked depression of cortisol in fetal plasma after betamethasone seems paradoxical in view of the seemingly high availability of progesterone, considered as a precursor for the cortisol biosynthesis in the human fetal adrenal cortex.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

This report provides data indicating that the water–soluble dye combination commonly used in amniography raises the amniotic fluid lecithin/sphingomyelin ratio.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

In an initial study at the Yale-New Haven Hospital human chorionic somatomammotropin levels were reported to have predictive significance for the antepartum diagnosis of the postmaturity syndrome. Expanded data from the same institution do not support the original findings.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Variable decelerations during the last 2 hours of labor were associated with an abnormally positioned umbilical cord at delivery in 52% of cases. In cases where an abnormally positioned umbilical cord was seen at delivery, 89% had been preceded by variable decelerations. Cord compression resulted in an A-V difference in pH that was significantly increased when compared to a control group. This was mainly due to a decrease in the pH of the umbilical artery. The pathophysiology of cord compression is discussed.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Fetal heart rate (FHR) acceleration was evaluated in 1570 oxytocin challenge test (OCT) results, which were performed on 565 high-risk patients. In positive OCTs a significant decrease or lack of FHR acceleration was noted. Fetuses with positive OCTs and lack of FHR acceleration were more compromised than those with better FHR acceleration. Negative OCTs were associated with a good FHR acceleration approximately 95% of the time. Study of FHR acceleration in suspicious OCTs proved to be helpful in determining the significance and prognosis of a suspicious OCT.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

A retrospective study involving all admissions to two neonatal intensive care centers over a 4-year period was carried out to assess the protective effect, or lack of it, of prolonged rupture of membranes (ROM) on the prevalence of idiopathic respiratory distress syndrome (IRDS) in premature infants. Significantly fewer cases of IRDS were found in patients in all gestational age groups when ROM was greater than 24 hours as compared with those with ROM of less than 12 hours' duration. However, prolonged ROM was not consistently associated with a difference in prevalence of respiratory failure accompanying IRDS, or in the prevalence of sepsis or neonatal mortality in this patient population. It is concluded that benefit to a premature infant in the form of reduced risk of developing IRDS is possible if the mother is allowed 24 hours after ROM before the delivery is initiated.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Four gravid patients with small bowel obstruction secondary to adhesions were seen during a 17-year span (1955 through 1971) at the Mayo Clinic. Three of these patients had been referred to us for definitive diagnosis and treatment. During the time span under investigation, there were 25,189 deliveries at our institution. As the incidence of surgical procedures increases, small bowel obstruction is likely to be seen more frequently. One must consider this diagnosis in any pregnant patient with an abdominal scar and the characteristic signs and symptoms of obstruction. When mechanical intestinal obstruction has been diagnosed, the recommended treatment is surgery regardless of the gestational age or status of the fetus.

ISSN:0029-7844    

出版商:OVID    

年代:1977

数据来源: OVID