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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1992-7-30
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pubmed:abstractText |
The umbilical venous hematocrit at birth (Hct 1) and the peripheral venous hematocrit at 2 h of life (Hct 2) were determined in 78 healthy full-term and 14 healthy preterm newborn infants. Hct 1 was 51.6 +/- 4.1% in full-term infants and 50.8 +/- 4% in preterm infants. Hct 2 was 60.9 +/- 2 and 58.6 +/- 6.1% in full-term and preterm infants, respectively. Significant differences between Hct 1 and Hct 2 were found in both groups of infants (p less than 0.01). The blood viscosity increased significantly in both groups from birth to 2 h of life. Neonatal polycythemia (Hct higher than 70% at 2 h of life) was detected in only 3 full-term infants (3.8%). They received partial exchange transfusion. There was a positive linear correlation of Hct 1 with Hct 2 in full-term newborns (r = 0.71, p less than 0.001) and preterm infants (r = 0.57, p less than 0.02). No infants with Hct 1 equal to or below 50% had Hct 2 higher than 65%. None with Hct 1 between 51 and 54% had Hct 2 higher than 70%. Neither Hct 1 nor Hct 2 correlated with birth weight, gestational age, total blood solutes, or reticulocyte counts at birth in either group. An inverse linear correlation was found between blood pH at birth and Hct 2 in preterm newborn infants (r = 0.66, p less than 0.02).
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0006-3126
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
61
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
173-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1610945-Birth Weight,
pubmed-meshheading:1610945-Blood Viscosity,
pubmed-meshheading:1610945-Erythrocyte Count,
pubmed-meshheading:1610945-Fetal Blood,
pubmed-meshheading:1610945-Gestational Age,
pubmed-meshheading:1610945-Hematocrit,
pubmed-meshheading:1610945-Humans,
pubmed-meshheading:1610945-Hydrogen-Ion Concentration,
pubmed-meshheading:1610945-Infant, Newborn,
pubmed-meshheading:1610945-Infant, Premature, Diseases,
pubmed-meshheading:1610945-Polycythemia,
pubmed-meshheading:1610945-Reticulocytes
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pubmed:year |
1992
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pubmed:articleTitle |
Polycythemia of the preterm and full-term newborn infant: relationship between hematocrit and gestational age, total blood solutes, reticulocyte count, and blood pH.
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pubmed:affiliation |
Department of Pediatrics, Meir General Hospital, Sapir Medical Center, Kfar Saba, Israel.
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pubmed:publicationType |
Journal Article,
Comparative Study
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