{"id":8628,"date":"2019-05-22T16:09:47","date_gmt":"2019-05-22T16:09:47","guid":{"rendered":"http:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/oligohydramnios\/"},"modified":"2019-05-22T16:09:47","modified_gmt":"2019-05-22T16:09:47","slug":"oligohydramnios","status":"publish","type":"post","link":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/oligohydramnios\/","title":{"rendered":"Oligohydramnios"},"content":{"rendered":"<p>Reduced volume of amniotic fluid, expected for gestational age, that surrounds the fetus. &nbsp;It is the opposite of another pregnancy complication, namely,&nbsp;hydramnios. &nbsp;Too little fluid for an extended period of time can result in abnormal physical and behavioral development. &nbsp;The amount of fluid is derived from ultrasound examination, the most common measurement being the <a href=\"http:\/\/www.perinatology.com\/Reference\/glossary\/A\/Amniotic%20Fluid%20Index.htm\" class=\"cc-route-enabled\" target=\"_self\" data-editable-link=\"http:\/\/www.perinatology.com\/Reference\/glossary\/A\/Amniotic%20Fluid%20Index.htm&amp;target=_self\" rel=\"noopener noreferrer\">amniotic fluid index<\/a>: fluid level of less than 5 cm. (or less than the 5th percentile) is taken as a diagnosis of oligohydramnios. &nbsp;Other indicators include the absence of a fluid pocket of 2-3 cm in depth, or fluid volume of less than 500mL at 32-36 gestation (when it is most common during pregnancy). &nbsp;Some 8% of pregnant women display low levels of amniotic fluid, with about 4% of them being diagnosed with&nbsp;oligohydramnios, with complications arising in 12% of pregnancies beyond 41 weeks. &nbsp;Maternal risk factors involve diabetes, hypertension and pre-eclampsia. &nbsp;Complications during the first half of pregnancy include, for example, miscarriage or stillbirth, and compression of fetal organs. &nbsp;During the second half, they include cord compression, musculoskeletal anomalies, preterm birth and intrauterine growth restriction. &nbsp;In severe cases, the prognosis is poor, and is usually fatal. &nbsp;There are a number of treatments, the most common one being maternal re-hydration with oral fluids. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<\/p>\n<p>See <a href=\"amniotic_fluid\">Amniotic fluid<\/a>, <a href=\"fetal_akinesia_deformation_sequence_-fads-\">Fetal akinesia deformation sequence (FADS)<\/a>, <a href=\"gestational_age\">Gestational age<\/a>, <a href=\"hydramnios_-or_polyhydramnios-\">Hydramnios (or polyhydramnios)<\/a>, Intrauterine growth restriction (or retardation), <a href=\"pre-eclampsia\">Pre-eclampsia<\/a><\/p>\n<p><\/body><\/html><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reduced volume of amniotic fluid, expected for gestational age, that surrounds the fetus. &nbsp;It is the opposite of another pregnancy complication, namely,&nbsp;hydramnios. &nbsp;Too little fluid for an extended period of time can result in abnormal physical and behavioral development. &nbsp;The amount of fluid is derived from ultrasound examination, the most common measurement being the amniotic &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/oligohydramnios\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Oligohydramnios&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2],"class_list":["post-8628","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-glossary","entry"],"_links":{"self":[{"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/posts\/8628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/comments?post=8628"}],"version-history":[{"count":0,"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/posts\/8628\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/media?parent=8628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/categories?post=8628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lancaster.ac.uk\/fas\/psych\/glossary\/wp-json\/wp\/v2\/tags?post=8628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}