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  • 1
    Electronic Resource
    Electronic Resource
    The effect of intra-partum and intra-uterine asphyxia on placental transfusion in premature and full-term infants (1978)
    Springer
    European journal of pediatrics 127 (1978), S. 91-99 
    Details
    ISSN: 1432-1076
    Keywords: Newborn infants ; Premature infants ; Asphyxia ; Caesarean section ; Nuchal cord ; Blood volume ; Red cell mass
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Blood volume and its components were estimated using 125iodinated human serum albumin in 194 newborn infants with 26 to 41 week gestations. Umbilical cords were ligated 15 seconds after vaginal delivery (n=141) and within 5 seconds after delivery by Caesarean section (n=53). The infants were divided into four groups according to the mode of delivery and presence of prenatal complications: group I: vaginal deliveries (n=96) and group II: Caesarean section (n=25) without preceding complications; group III: infants with intra-uterine asphyxia (n=56); group IV: infants with tight umbilical cord loops around neck (n=17). Subgroups were established with respect to gestational age and to one-minute Apgar scores. Significantly different blood volume (BV) and red cell mass (RCM) values between the subgroups were only found in group I with respect to different Apgar scores: Ia Apgar〉5: BV 77.9±6.2; RCM 37.5±5.1 ml/kg; Ib Apgar〈6: BV 70.0±4.4; RCM 29.6±2.9 ml/kg (P〈0.005). Intra-partum asphyxia did not affect BV (71.3±4.8 ml/kg) and RCM (31.2±3.6 ml/kg) in group II. BV and RCM were significantly (P〈0.005) lower than in group Ia. In group III, BV (90.4±7.0 ml/kg) and RCM (46.9±6.3 ml/kg) were significantly (P〈0.005) higher than in group I, irrespective of the mode of delivery and Apgar scores. The infants of group IV had the lowest volumes (BV 67.5±5.7; RCM 27.4±2.7 ml/kg). Values obtained in premature and full-term infants were similar in the respective groups. These results indicate that infants with intra-partum asphyxia and with tight nuchal cords do not participate in placental transfusion or even lose some blood into the placenta. However, infants with intrauterine asphyxia (excepting those with tight nuchal cords) receive marked placental transfusion in utero.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00445764
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Capillary-venous hematocrit differences in newborn infants (1977)
    Springer
    European journal of pediatrics 127 (1977), S. 9-14 
    Details
    ISSN: 1432-1076
    Keywords: Newborn infants ; Blood pressure ; Hematocrit ; Blood volume ; Acid-base status ; Red cell mass ; Peripheral blood flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Venous and capillary hematocrit, acid base values, and circulatory parameters were measured simultaneously in 92 newborn infants within six hours of birth. Gestational age ranged from 26 to 41 weeks. The capillary/ venous hematocrit ratio (Hctc/Hctv) was greater than 1.00 in 89 infants. We found significant inverse correlations between Hctc/Hctv and several parameters, such as pH (r=-0.82), standard bicarbonate (r=-0.73), systolic blood pressure (r=-0.51), and peripheral blood flow (r=-0.70). Most of the infants with a Hctc/Hctv of 1.20 and above had red cell mass values of less than 35 ml/kg. However, blood volume apparently did not influence the Hctc/Hctv. Gestational age appeared to affect Hctc/Hctv only before 30 weeks, when compared with the Hctc/Hctv of term infants. Our results indicate that disturbed circulation, and in particular, disturbed microcirculation, is involved in the development of high Hctc/Hctv ratios. We strongly advise that hematocrits obtained by skin prick from a sick newborn infant should not be relied on as they may give misleading information on oxygen carrying capacity to vital organs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00465560
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  • 3
    Electronic Resource
    Electronic Resource
    Peripheral circulation in the newborn: Interaction of peripheral blood flow, blood pressure, blood volume, and blood viscosity (1978)
    Springer
    European journal of pediatrics 129 (1978), S. 73-81 
    Details
    ISSN: 1432-1076
    Keywords: Blood pressure ; Blood viscosity ; Blood volume ; Newborn infants ; Peripheral blood flow ; Peripheral resistance ; Premature infants ; Respiratory distress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Peripheral blood flow and systolic blood pressure (strain-gauge plethysmograph), blood volume (Evans blue) and whole blood viscosity (cone-plate viscometer) have been measured in 66 premature and full-term infants 6 to 144h of age. Blood flow and blood volume were moderately decreased in the infants with respiratory distress. Highly significant (P〈0.001) correlations were found betwen blood flow and blood volume (r=0.77), blood pressure and blood volume (r=0.50), peripheral resistance and blood volume (r=-0.44), blood flow and blood pressure (r=0.50), blood flow and peripheral resistance (r=-0.67), peripheral resistance and blood viscosity (r=0.45), and blood viscosity and haematocrit (r=0.86). There was no correlation between peripheral blood flow and blood viscosity. However, at given blood volume, peripheral blood flow decreased with increasing blood viscosity. These results indicate that in newborn infants peripheral blood flow, blood pressure and peripheral resistance are influenced by blood volume, but also depend on blood viscosity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00442366
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  • 4
    Electronic Resource
    Electronic Resource
    Estimation and prediction of blood volume in infants and children (1977)
    Springer
    European journal of pediatrics 125 (1977), S. 227-234 
    Details
    ISSN: 1432-1076
    Keywords: Blood volume ; Height ; Weight ; Body surface area ; Infancy ; Childhood
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Blood volume was studied in 160 infants and children aged from one hour to 14 years. From these data linear and logarithmic regression equations relating blood volume to weight, height and surface area were calculated. Equations utilizing combined height and logarithmic weight values were found to be the most accurate for predicting blood volume. Therefore, nomograms were constructed for reading blood volume directly from height and weight.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00493567
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  • 5
    Electronic Resource
    Electronic Resource
    Association of neonatal respiratory distress with birth asphyxia and deficiency of red cell mass in premature infants (1978)
    Springer
    European journal of pediatrics 129 (1978), S. 167-173 
    Details
    ISSN: 1432-1076
    Keywords: Premature infants ; Respiratory distress ; Apgar score ; Asphyxia ; Red cell mass
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Red cell mass (RCM) was estimated using 125I-labelled human serum albumin in 128 premature infants born after 26 to 36 weeks gestation. Infants of three different gestational periods (26–29, 30–32, and 33–36 weeks) with respiratory distress (RD) averaged lower one-minute Apgar scores and lower RCM than infants without RD (P〈0.05). The incidence of RD was significantly (P〈0.05) higher in infants with Apgar scores below 6 and in infants with RCM of less than 35 ml/kg than in the infants with greater values. The highest incidence of RD and the highest mortality rate were found in the infants with low Apgar scores and low RCM values. Prematures with similar Apgar scores showed a higher incidence of RD when RCM was low, and infants with similar RCM showed a higher incidence of RD when Apgar scores were low. Our results suggest that both birth asphyxia and deficiency of red cell mass interfere with postnatal cardio-respiratory adaptation. In high-risk premature infants, erythrocytes should be transfused when the venous haematocrit is below 0.45.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00442160
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  • 6
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1975)
    Springer
    Annals of hematology 31 (1975), S. 325-329 
    Details
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01634150
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1979)
    Springer
    Annals of hematology 39 (1979), S. 421-428 
    Details
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01008663
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  • 8
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1975)
    Springer
    Annals of hematology 31 (1975), S. 51-53 
    Details
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01635443
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  • 9
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1975)
    Springer
    Infection 3 (1975), S. 235-237 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01642775
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