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Causes & Complications Of Multiple Births
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Causes & Complications Of Multiple Births

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This slideshow presentation was one of my Year 9 science assignments. It explains multiple births and the complications that can evolve.

This slideshow presentation was one of my Year 9 science assignments. It explains multiple births and the complications that can evolve.

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  • 1. Causes & Complications of Multiple Births
    Matthew Holland
    Lewis Pointing
    Billy Hade
  • 2. Multiple Birth Facts
    Chance of having…
    Twins: 1:80
    Triplets: 1:6400
    Conjoined or Siamese: 1:50000 chance, about half are still-born.
    Multiple births have a
    higher mortality rate.
  • 3. Naturally Occurring Ways of Increasing the Chance of Multiple Births
    Heredity
    A family history of multiple pregnancy increases the chances of having twins.
    Older Age
    Women over 30 have a greater chance of a multiple birth.
    Multiple births more common due to today's increase in the number of births later in women's lives.
    High Parity
    Having one or more previous multiple pregnancies increases the chances of having multiples.
    Race
    African-American women are more likely to have twins than any other race.
    Caucasian women, especially those over age 35, have the highest rate of higher-order multiple births (triplets, quadruplets etc.).
  • 4. Unnatural Methods in Increasing the Chance of Multiple Births
    Help produce many eggs, which if fertilized, can
    result in multiple births.
    Allows multiple eggs to be fertilised & then returned to the uterus to develop.
  • 5. How Multiple Births Occurs: Fraternal Twinning
  • 6. How Multiple Births Occurs: Identical Twinning
  • 7. Identical Vs. Fraternal Twinning
  • 8. Medical Complications
    Preterm Labour
    Nearly half of all twins or higher-order multiples are premature births (born before 37 weeks)
    The higher the number of fetuses in the pregnancy=greater risk of early birth
    Premature babies: born before body & organs have not fully matured
    They are small & may need help breathing, eating, fighting infection, & staying warm
  • 9. Medical Complications
    Birth Defects
    Multiple birth babies have about twice the risk of congenital abnormalities including neural tube defects and heart abnormalities.
    Miscarriage
    More likely in multiple pregnancies
    More than one fetus is diagnosed, but vanishes (or is miscarried), usually in the first trimester (three months)
    Sometimes accompanied by bleeding. The risk of pregnancy loss is increased in later trimesters as well.
  • 10. Medical Complications
    Twin-to-Twin Transfusion Syndrome
    Condition of the placenta
    Only develops with identical twins that share a placenta
    Blood vessels are connected within the placenta and divert blood from one fetus to the other
    Occurs in about 1 in 7 twins
    with a shared placenta
  • 11. Medical Complications
    Abnormal Amounts of Amniotic Fluid
    More common in multiple pregnancies, especially for twins that share a placenta
    Caesarean Delivery
    Abnormal fetal positions increases chances of caesarean birth
    Postpartum Haemorrhage
    In many multiple pregnancies; the large placental area places mother at risk of bleeding after delivery.
  • 12. Non-Medicinal Complications
    • Many mothers of multiple births find breast-feeding their babies difficult. Different diets and lifestyles are required to produce enough breast-milk for the multiple babies.
    • 13. Severe lack of sleep is a common problem with a single child, but with multiple births, many parents require respite programs to help with the difficult situation.