Pathologic Function
oligohydramnios
Subclass of:
Pregnancy Complications
Definitions related to oligohydramnios:
  • A condition of abnormally low AMNIOTIC FLUID volume. Principal causes include malformations of fetal URINARY TRACT; FETAL GROWTH RETARDATION; GESTATIONAL HYPERTENSION; nicotine poisoning; and PROLONGED PREGNANCY.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • A lower than normal quantity of amniotic fluid in the amniotic sac as compared to normal values. Typically associated with an amniotic fluid index (AFI) of less than 5 cm or a single maximum vertical pocket (MVP) of less than 2 cm.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Diminished amniotic fluid volume in pregnancy.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2021
  • Reduced or less than normal amount of amniotic fluid. (Makris S, Solomon HM, Clark R, Shiota K, Barbellion S, Buschmann J, Ema M, Fujiwara M, Grote K, Hazelden KP, Hew KW, Horimoto M, Ooshima Y, Parkinson M, Wise LD. Terminology of developmental abnormalities in common laboratory mammals (Version 2). Part B. Birth Defects Res B Dev Reprod Toxicol. 2009 Aug;86(4):227-327.)
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
  • Oligohydramnios is a deficient volume of amniotic fluid; it is associated with maternal and fetal complications. Diagnosis is by ultrasonographic measurement of amniotic fluid volume. Management involves close monitoring and serial ultrasonographic assessments.
    Merck Manuals
    Merck & Co., Inc., 2020
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