Medical Health Central

Whenever there is an antepartum or intrapartum hemorrhage, the possibility of a vasa previa and ruptured vessel fetal exists. Unfortunately, the amount of fetal blood that can be made without killing the fetus is relatively low. Thus, in many cases, fetal death is virtually instantaneous. An approach for detecting blood of the fetus is to smear the blood on glass slides, staining smears with Wright stain, and examined for nucleated red blood cells that are normally present in cord blood, but not the mother of blood. Figure 27-8. Velamentous insertion of the cord. The placenta and membranes were inverted to expose the amnion. Part of the fetal surface of placenta appears at the bottom of the photograph. Note the large vessels of the fetus extending from the insertion of the cord and membranes. Finally, note the proximity of vessels at the site of rupture of membranes. Figure 27-9. Gray-scale analyzes ultrasound showing vasa previa. The left figure is a median sagittal view of cervical, bladder, and the fetal head at 34 weeks gestation. The aberrant vessel is considered a circular echogenic structure covering the internal os. The right figure is a parasagittal view of another woman at 28 weeks. The aberrant vessel is considered a linear echogenic structure that courses along the amnion near the uterus. CORD ANOMALY might impede blood flow. Several mechanical and vascular anomalies of the umbilical cord are capable of altering blood flow to the fetus-placenta. Knots. False nodes, resulting in twisting of the vessels to accommodate the length of the cord, must be distinguished from true knots, resulting from quickening. In nearly 17,000 deliveries in the collaborative study on cerebral palsy, Spellacy and colleagues found an incidence of true knots of 1.1 percent. The incidence is particularly high among twins monoamnionic. Venous stasis may lead to mural thrombosis and fetal hypoxia, causing death or neurological morbidity. Collins and Collins estimate an incidence of 6 per cent of stillbirths when nodes are real.

Related posts:

1. UMBILICAL CORD ABNORMALITIES: Presenting Fetal Part – Obstetrics When a cord two vessels is a finding not isolated,...
2. UMBILICAL CORD ABNORMALITIES: Renal Aplasia – Obstetrics WRAPPING THE CORD. In most cases, the umbilical vessels course...
3. UMBILICAL CORD AND RELATED STRUCTURES – Obstetrics Figure 3-24. A. Cross section of umbilical cord blood vessels...
4. UMBILICAL CORD AND RELATED STRUCTURES: Same Umbilical Cord Shown – Obstetrics Structure and function of the cord. The umbilical cord, or...
5. UMBILICAL CORD ABNORMALITIES: Various Adverse Outcomes – Obstetrics Cord develops in close association with the amnion, as described...

One Response to “UMBILICAL CORD ABNORMALITIES: Several Large Studies – Obstetrics”