摘要:

Measurements of blood glucose, insulin, and growth hormone (HGH) were made in mater nut venous blood, umbilical artery and vein blood and amniotic Iluid sum pies from 270 pregnant women. It was demonstrated that umbilical vein (UV) glucose levels depend on maternal vein concern rat ions and are higher than values obtained from the umbilical artery (UA) (MV > UV > UA). There are low level's of insulin in the umbilical vessels compared to the maternal plasma. There is a significantly higher umbilical vein insulin level iu infants weighing more than 4000 g than in those weighing less than 2500 g. The mean umbilical blood HGH level is almost 4× higher than the maternal level and is unrelated to infant birth weight or placental weight. Amniotic fluid (AF) glucose concentration decreases with gestational age and is positively correlated with maternal blood glucose concentration. The level of glucose in the AF from women with diabetes mellitus is significantly higher than that from women with normal pregnancies. Amniotic fluid insulin content increases with gestational age and is significantly and positively related to infant birth weight

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

Amniotic fibrous bands may attach to various parts of the fetus or newborn and cause a variety of congenital malformations. The incidence has been estimated at approximately 1:5000 to 1:10,000 pregnancies. A case is reported in which a young, healthy woman gave birth to a premature infant, with intrauterine amputation of the left arm, and mummification and atrophy of -the still adherent distal part of the affected limb. Intrauterine amputation of the right middle finger was also found. The fetal side of the placenta revealed fine fibrous threads and bands. Two main theories of the pathogenesis of amniotic bands have been proposed: 1) the amniotic bands are the result of developmental defects occurring at the time of the formation of the germ disk and the amniotic cavity (endogenic origin), and 2) these bands generate from early rupture of the amnion (exogenic origin). Careful examination of the placenta is essential for a precise definition of the pathogenesis.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

The source, production site and isoamylase patterns of amniotic fluid amylase have not previously been described. Samples of amniotic fluid from 21 pregnancies were obtained at various times during gestation. Other body fluids and tissue homogenates were studied. The isoamylases were separated by disc poly-acrylamidc gel electrophorcsis and identified by iodine development after incubating on a starch-agar film. Amniotic fluid amylase concentrations rise significantly during gestation; zymograms of amniotic fluid were nearly identical to those of neonatal urine, revealing distinct salivary and pancreatic components. Zymograms of homogenized placenta, liver and intestine were similar to adult scrum and different from amniotic fluid. The similarity between amniotic and neonatal urine zymograms is indicative of the fetal pancreas and salivary gland origin of amniotic fluid amylasc, with production as early as 16 to 18 weeks.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

Estriol and crcatinine in urine of 5 women were determined at frequent intervals during the last trimester. The overall trend was similar when excretion of estriol was expressed in terms of milligrams per 24 hours and milligrams per gram of creatinine excreted during the same period. However, there was less day-to-day variability in the excretion of estriol when expressed relative to the concentration of creatinine. This study concludes that crcatininc provides a useful indicator of the completeness of a 24-hour collection of urine when using changes in excretion of estriol to monitor for potential fetal distress.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

Stimulation of the breast was used to induce labor in 204 patients. The success rate was 69.6%. This method is recommended when oxytocin is considered undestrous, especially in grandmulliparae. No complications were observed. An additional advantage was the absence of breast engorgement during the postpartum period.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

The change in fetal heart rate when the fetus's head is compressed by abdominal compression has been closely rcexainined. The change often involves a brief tachycardia, which may or may not precede the more familiar bradycardia. The nature of the final change in heart rate depends on whether pressure is applied over the fetal head, neck or trunk. Mechanisms for the liiphasic nature of the response are discussed.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

A numerical method for quantitating fetal heart beat-to-beat interval differences is introduced. This method appears to be valuable for assessing the status of the nervous mechanisms controlling the fetal heart. It consists of two indices—viz, “interval index (II)” measures the relatively long-term fluctuations in fetal R–R intervals; and “differential index (Dl)” measures the relatively short-term fluctuations in fetal R—R intervals. Both indices can be displayed serially in a numerical or analog form.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

The effects of diazepam (Valium®) on utcro-placental and fetal circulation as well as oxygen consumption were investigated in near-term ewes. When injected into the mother in closes between 0.1 and 0.5 mg/kg, diazepam did not alter uteroplaccntat hemodynamics and oxygen transfer; doses greater than 0.5 mg/kg produced a slight fall in maternal arterial pressure and uteroplacental blood flow. Fetal hemodynamics and oxygen consumption were not altered by any of the doses administered to the mother. Administered intravenously to the fetus with intact umbilical circulation, in doses varying between 0.5 and 8.0 mg/kg, diazepam did not alter the fetal cardiovascular functions or oxygenution.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

M natal paraplegia is significant.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID

摘要:

Experience with ultrasonic scanning during the first 2 years of its use on a large obstetrics and gynecology service has been reviewed. The number of examinations has doubled in each successive 6-month period. At first, placenlal localization in patients with late pregnancybleeding was the most frequent indication for scanning. More recently, fetal measurement in complicated pregnancies and evaluation of pelvic masses have become the largest categories. Ultrasonic scanning has proved to be a useful diagnostic aid in many areas of obstelrics and gynecology.

ISSN:0029-7844    

出版商:OVID    

年代:1973

数据来源: OVID