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Acta médica Grupo Ángeles
versão impressa ISSN 1870-7203
Resumo
SALAZAR HERRERA, Dora et al. Post-Birth umbilical cord blood content in premature and term infants. Acta méd. Grupo Ángeles [online]. 2020, vol.18, n.3, pp.264-267. Epub 31-Maio-2022. ISSN 1870-7203. https://doi.org/10.35366/95403.
Objective:
Determine the blood content of the post-birth umbilical cord and its relation to size and cut-off time as well as analyze the possible clinical implications.
Material and methods:
The amount of residual blood in the umbilical cord of 252 infants was used to estimate confidence intervals of the mean blood content of the post-birth umbilical cord in relation to gestational age, cord length and cut time.
Results:
The average blood content in the cord was 1.2 mL/kg/weight or 0.19 mL/cm in the 252 patients. In cords that are greater than 25 cm long we find 2.29 mL/kg and in those less than 25 cm long we find 0.79 mL/kg. When using late clamping we obtained 2.27 mL/kg and with an early cut 2.34 mL/kg. In premature infants, the amount of blood with cord length < 25 cm was 0.89 mL/kg and with cord length > 25 cm of 3.09 mL/kg although there were only five children in this group. In the case of full-term births with cord length < 25 cm, the amount of blood was 0.78 mL/kg and 2.22 mL/kg for the case of cord length > 25 cm.
Conclusions:
The umbilical cord with a length greater than 25 cm can provide a transfusion of 2.29 mL/kg, cord clamping time has little impact on the blood total amount obtained.
Palavras-chave : Cord blood; umbilical cord milking; neonatal resuscitation.