Timing of cord clamping revisited
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Tali Levy
Abstract
Although cord cutting has been performed since the beginning of mankind, the timing and advantages of early versus delayed cord clamping are still controversial. Early cord clamping (within the first 30 s after birth) is usually justified for potential prevention of postpartum hemorrhage and for immediate treatment of the newborn, but at the same time, may increase Rh-sensitization. Delayed cord clamping is performed after a period of 30 s during which ‘placental transfusion’ of approximately 80 mL of blood occurs. This amount seems to protect the baby from childhood anemia without increasing hypervolemia-related risks. In preterm infants, delayed clamping appears to reduce the risk of intraventricular hemorrhage and the need for neonatal transfusion. Obtaining cord blood for future autologous transplantation of stem cells needs early clamping and seems to conflict with the infant's best interest. Although a tailored approach is required in the case of cord clamping, the balance of available data suggests that delayed cord clamping should be the method of choice.
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©2006 by Walter de Gruyter Berlin New York
Artikel in diesem Heft
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Artikel in diesem Heft
- Advances in Perinatal Medicine - 5th Annual meeting of the Italian Society of Perinatal Medicine held in Parma, Italy on June 15th – 17th 2006
- Hemorrhagic shock in obstetrics
- Altered protease expression by periarterial trophoblast cells in severe early-onset preeclampsia with IUGR
- Gestational diabetes mellitus in patients receiving long-term corticosteroid therapy during pregnancy
- Accuracy and influence of ascorbic acid on glucose-test with urine dip sticks in prenatal care
- Protein C, protein S, and thrombomodulin in amniotic fluid. A preliminary study
- Timing of cord clamping revisited
- Intrapartum cardiotocography – the dilemma of interpretational variation
- Maturation of the autonomic nervous system: differences in heart rate variability in premature vs. term infants
- Four chamber view plus three-vessel and trachea view for a complete evaluation of the fetal heart during the second trimester
- Pleural fluid/serum immunoglobulin ratio is a diagnostic marker for congenital chylothorax in utero
- Fetal brain sparing is strongly related to the degree of increased placental vascular impedance
- Outcome of fetuses in women with pregestational diabetes mellitus
- Outcome of fetuses in women with pregestational diabetes mellitus
- Inhaled nitric oxide therapy might reduce the need for hyperventilation therapy in infants with persistent pulmonary hypertension of the newborn
- To drain or not to drain: a single institution experience with neonatal intestinal perforation
- Infective puerperal endocarditis caused by Escherichia coli
- Correlation between plasma and urinary caffeine levels in preterm infants
- Fetal ascites secondary to urinary hydrocolpos
- Congress Calendar
- Suppression of IL-2 and IFN-γ production in women with spontaneous preterm labor