Dictionary > Oligohydramnios

Oligohydramnios

Definition
noun
A condition characterized by a deficiency of amniotic fluid
Supplement
The amniotic fluid is the fluid that surrounds the developing fetus within the amniotic sac. This environment cushions the baby from injury and plays an important role in fetal development. The volume of the amniotic fluid increases as the fetus develops and grows. It increases from approximately 25 mL to 400 mL from the 10th week to the 20th week of gestational age. And by the 28th week, it plateaus to 800 mL. At birth, there is about 1L of amniotic fluid.1 There are instances, however, when there is a deficiency of amniotic fluid in the amniotic sac. This condition is referred to as oligohydramnios. The amount of amniotic fluid below the typical normal level may implicate a gestational problem. The occurrence of oligohydramnios is found to cause clubbing of the feet and hands, contractures of the limbs, and hypoplastic lungs. A hypoplastic lung is an underdeveloped lung and life-threatening. The underdeveloped lung due to oligohyramnios may lead to inefficient lung function, particularly oxygenation, and to perinatal death.
Oligohydramnios is associated with prerenal, placental insufficiency, low-output cardiac failure, foetal demise, renal, renal agenesis, polycystic disease, multicystic dysplastic, postrenal, uPJ obstruction, megaureter, posterior urethral valves, urethral agenesis , etc. The aetiology is often unclear but it may lead to pulmonary hypoplasia and demise, renal, IUGR, prematureure of membranes .
Word origin: oligo- (few)
Also called:

  • oligamnios

Compare:

  • polyhydramnios
  • See also:

    • amnion
    • fluid
    • twin-to-twin transfusion syndrome
    • Potter syndrome

    Reference(s):

    1 Larsen, W. J. (2001). Human embryology (3. ed.). Philadelphia, Pa.: Churchill Livingstone. p. 490.


    You will also like...

    Types and Causes of Brain Damage
    Types and Causes of Brain Damage

    This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

    Fossil trilobite imprint in the sediment
    Insects

    There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

    Disturbance on a still water
    Abiotic Factors – Water Conditions

    A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

    "Opabinia regalis"
    The Evolutionary Development of Multicellular Organisms

    Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

    Golgi apparatus (3-D illustration)
    Role of Golgi Apparatus & Endoplasmic Reticulum in Protein Synthesis

    The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..

    Ecosystem Succession
    Ecosystem Succession

    If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..

    Related Articles...

    No related articles found

    See all Related Topics