Placental Transfusion, Stem Cells
Conditions
Keywords
stem cell, newborn, endothelial progenitor cell, CD34+ hematopoietic stem cell, delayed cord clamping, umbilical cord milking, immediate cord clamping
Brief summary
To measure the levels of endothelial progenitor cells and CD34+ hematopoietic stem cells levels, and placental residual volume by delayed cord clamping, umbilical cord milking or immediate cord clamping in newborns at different gestational weeks.
Detailed description
Umbilical cord blood is a rich source of stem cells. Placental transfusion is the transfer of the placental blood to the baby until the cord clamped during the birth. Placental transfusion can be accomplished by delayed cord clamping or umbilical cord milking. One group will receive 2 minutes of delayed cord clamping, the second group will receive umbilical cord milking and the third group will receive immediate cord clamping. Following the cord clamping, the blood samples will be taken from the placental site of the umbilical cord to measure the stem cells from all subjects and placental residual volume will be measured. Delivery room conditions, hospitalization (if needed), short-term outcome during hospitalization, prematurity related morbidities (if baby is preterm) will be recorded.
Interventions
Delayed cord clamping will occur for up to 2 minutes.
Umbilical cord milking will occur milking of the 30 cm of the cord from placental site to baby, at a speed of 5 cm/second, 3 times in preterm newborns, 4 times in term newborns.
Immediate cord clamping will occur in 20 seconds after birth.
Sponsors
Study design
Intervention model description
Parallel assignment
Eligibility
Inclusion criteria
Born at 24 weeks to 42 weeks infants
Exclusion criteria
Without parental consent, known congenital anomalies
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The levels of stem cells | 18-months | Measurement of the levels of endothelial progenitor cells and CD34+ hematopoietic stem cells |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Placental residual volume | 18-months | The placental residual volume by delayed cord clamping, umbilical cord milking or immediate cord clamping |