Showing papers on "Small for gestational age published in 1970"
TL;DR: The results, both in the appropriately grown and small-for-dates infants, support the hypothesis that relatively minor undernutrition during a time of very rapid brain growth could result in a deficit in the ultimate size of the brain.
61 citations
TL;DR: Despite comparable conceptional ages of the two groups of infants, characteristic differences were found in some reflexes and automatic motor activities.
50 citations
TL;DR: There was a gradual rise in Mg levels with postnatal age, in both preterm infants with birth weights appropriate for Gestational age and infants who were small for gestational age, and in infants born of toxemic mothers and primiparous mothers.
Abstract: Serial magnesium determinations by atomic absorption spectrophotometry were performed in the first five days of age on the serum of 91 infants with birth weights less than 2.0 kg (4.4 lb). There was a gradual rise in Mg levels with postnatal age, in both preterm infants with birth weights appropriate for gestational age and infants who were small for gestational age. Decreased Mg levels were observed in infants who were small for gestational age, and in infants born of toxemic mothers and primiparous mothers. There was an inverse relation between Mg levels and gestational age. There was no significant correlation between Mg levels and serum calcium, phosphorus, or protein levels. The mean of all determinations was 2.26 mg/100 ml ± SD 0.34. These figures are similar to adult values. Three infants with serum Mg values below 2 SD from the mean exhibited signs of increased neuromuscular irritability. The low Mg levels reverted to normal without treatment.
41 citations
TL;DR: The whole weight of the afterbirth is a poor indicator of functional capacity because nearly half this weight is contributed by tissues which are not part of the placenta proper.
Abstract: The relationship between placental weight and functional capacity can therefore be explained in the manner indicated in Fig 4. The whole weight of the afterbirth is a poor indicator of functional capacity because nearly half this weight is contributed by tissues which are not part of the placenta proper. Blood-free placental weight is a rather better measure of functional capacity, but probably a still better measure is the amount of metabolically active protein. Even this is still a very crude measurement; ideally one would wish to measure the amount and activity of those enzyme proteins on which the biochemical function of the placenta depends, but this is technically a formidable task. In the meantime we can ask that measurements of placental weight should be designed to include genuine placental tissue, and that irrelevant material such as the cord and membranes should be discarded.
3 citations
TL;DR: The need for studying the intra-uterine growth rates of the authors' babies, and in future, classification of the babies as “large for gestational age”, “appropriate for gestations” and “small for gestatory age’, based on percentiles of weight at a particular gestation, has been emphasised.
Abstract: The various methods of classification of the newborn babies favoured at different times and by different authors have been enumerated. It is proposed that babies in our country may be called full birth weight, low birth weight, and lower low birth weight based respectively on birth weights of more than 2500 G., less than 2500 G. and less than 2000 G. They may be referred to as preterm, term and post-term, based respectively on gestation of 37 weeks or less, 38 to 41 weeks, and 42 weeks and more. The need for studying the intra-uterine growth rates of our babies, and in future, classification of the babies as “large for gestational age”, “appropriate for gestational age” and “small for gestational age”, based on percentiles of weight at a particular gestation, has been emphasised.