THE CORRELATION OF MATERNAL HEART VOLUME WITHu THE BIRTH WEIGHT OF THE INFANT AND PREMATURITY

Kauppinen, Markku

doi:10.3109/00016346709157066

Cited by 19 publications

(4 citation statements)

References 89 publications

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“…Mothers with a low plasma volume are known to have more premature newborns (11) or smaller babies in general (18), when compared with mothers with the normally increased plasma volume of the pregnancy. As a reflection of low plasma volume a small heart volume is also considered as an important factor contributing to the high incidence of premature deliveries (12). In this study the maternal PWC did not show any influence on the duration of the pregnancy.…”

Section: Newborn and Placentacontrasting

confidence: 41%

The Physical Work Capacity of the Expectant Mother and Its Effect on Pregnancy, Labor and the Newborn

Erkkola

1976

Intl J Gynecology & Obste

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149 healthy primigravidae participated in the study dealing with the correlation between the physical work capacity of the mother and the course of pregnancy and labor and the possible influence of physical work capacity on the development of the fetus and placenta. 62 of the mothers were followed prospectively from the end of the first trimester and their physical work capacity was determined on two occasions prior to the 38th week of the pregnancy. All mothers were examined during the 38th week. Physical work capacity was determined using a voluntarily maximal pulse‐conducted work test on a bicycle ergometer. Prospectively the healthy mothers and the mothers which later developed toxemia or had a threatening premature labor had similar work capacities. When studied during the 38th week, the physical work capacity of the mothers treated because of threatening premature labor was significantly lower than that of the healthy or toxemic mothers. They were also very significantly more sick written and at rest during the pregnancy than other mothers. The mothers with a physical work capacity above the non‐pregnant average had an almost significantly shorter labor, when it was spontaneous. This group gave birth to more infants weighing over 3 500 g, had significantly greater placentas and fewer low values of relative placental weight than the mothers with a physical work capacity below the nonpregnant average. The physical work capacity of the mother had no influence on the duration of pregnancy, duration of induced labor, duration of the time which passed from the moment when the baby was visible until the delivery, nor on the Apgar scores recorded at one minute.

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Section: Newborn and Placentacontrasting

confidence: 41%

The Physical Work Capacity of the Expectant Mother and Its Effect on Pregnancy, Labor and the Newborn

Erkkola

1976

Intl J Gynecology & Obste

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“…Low birthweight is not a uniform condition, because the weight at birth depends both on gestational age and intrauterine growth rate. Obstetric complications can influence both ( 1 1,13,16), but the association with handicaps later in life has received little attention. We therefore thought it worth-while to study LBW-children for any association between obstetric complications and later handicaps.…”

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confidence: 99%

Significance of Obstetric Factors in Prognosis of Low Birthweight Children

Bjerre

1977

OBSTETRICAL & GYNECOLOGICAL SURVEY

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Bjerre, B. and Bjerre, 1. (Departments of Obstetrics and Gynaecology and Paediatrics, Malmo General Hospital, Malmo, Sweden). Significance of obstetric factors in prognosis of low birthweight children. Acta Paediatr Scand, 65: 577, 1976.-Obstetric factors were studied in an unselected series of mothers of LBW-children and compared with those in a corresponding control series. Both groups consisted of 161 women with single pregnancies and 16 with twin pregnancies. Of the 188 LBW-children, 14% were twins. Of the single infants, 42% were appropriate for gestational age (AGA), i.e. within the 10th to 90th percentile according to Swedish curves for intrauterine growth, and 58% small for gestational age (SGA). The commonest causes of low birthweight (LBW) in the AGA-group were bleeding (34%) and premature rupture of the membranes (28%). In the SGA-group toxaemia was found in 15%, but in 50% of the SGA-group no cause of LBW was demonstrable. In this latter group the average placental weight was low. The mortality was noted and 89% of the living children were examined neurologically at 5 years of age. The prognosis of the child depended on the duration of pregnancy. Bleeding during pregnancy was a prognostically unfavourable sign, but even serious bleeding complications did not exclude a normal development of the child. The prognosis was best for those infants in whom no cause of LBW was demonstrable.

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“…Multiple ovulations and multiple conceptions seem to be much more common than multiple maternities, because intrauterine deaths occur extensively and particularly in pregnancies with multiple embryos or fetuses (Boklage, 1995;Landy & Keith, 1998) in which the volume of circulating blood required is considerably higher than in singleton pregnancies (Kauppinen, 1967). The increased urbanization and modern life with more sedentary occupations among mothers has caused a deterioration of physical condition.…”

Section: Discussionmentioning

confidence: 99%

Association Between the Rates of Multiple Maternities

Fellman¹,

Eriksson

2004

Twin res.

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We analyze the association between the rates of multiple maternities. Correlation analysis is suitable if there are at least monotonic relationships between the variables. A decreasing tendency can be observed in the rates of multiple maternities in Sweden and in its 25 counties for the period 1751–1960 and the effect of external variables can be assumed to be monotonic. After 1960, the rates of multiple maternities show marked increases, mainly caused by ovulation stimulants and the introduction of other artificial reproduction techniques. We transformed the triplet and quadruplet rates according to Hellin's law in order to obtain rates on the same scale as the twinning rate. The time trends for the multiple maternities in Sweden as a whole were quite similar. The regional differences in the twinning rates could not be satisfactorily explained by maternal age. Alternative attempts to eliminate the effect of other time-dependent factors were to study partial correlation coefficients when the time was kept fixed and the correlation coefficients based on cross-sectional regional data. Both the ordinary and the partial correlation coefficients showed strong regional variation. Cross-sectional analyses gave correlation coefficients similar to the partial correlation coefficients for Sweden as a whole. The variations in the correlation coefficients between the twinning and the triplet rates seem to be caused by other time-dependent factors and the effects of these factors show strong regional variation. After elimination of such factors, the correlation between the twinning and the triplet rates is moderate.

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THE CORRELATION OF MATERNAL HEART VOLUME WITHu THE BIRTH WEIGHT OF THE INFANT AND PREMATURITY

Cited by 19 publications

References 89 publications

The Physical Work Capacity of the Expectant Mother and Its Effect on Pregnancy, Labor and the Newborn

The Physical Work Capacity of the Expectant Mother and Its Effect on Pregnancy, Labor and the Newborn

Significance of Obstetric Factors in Prognosis of Low Birthweight Children

Association Between the Rates of Multiple Maternities

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