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Amnioinfusion is a method in which isotonic fluid is instilled into the uterine cavity. It was introduced in the 1960s as a means of terminating pregnancy and inducing labor in intrauterine death, but is currently used as a treatment in order to correct fetal heart rate changes caused by umbilical cord compression, indicated by variable ...
Artificial rupture of membranes (AROM), also known as an amniotomy, is performed by a midwife or obstetrician and was once thought to be an effective means to induce or accelerate labor.
Amnioinfusion: This treatment attempts to replace the lost amniotic fluid from the uterus by infusing normal saline fluid into the uterine cavity. This can be done through the vagina and cervix (transcervical amnioinfusion) or by passing a needle through the abdominal wall (transabdominal amnioinfusion).
Amnioinfusion may help in preventing underdevelopment of the lungs. If diagnosed with a circumvallate placenta, consistent fetal monitoring by a licensed physician can help to prevent and/or reduce the effects of associated complications that may occur.
One study showed an improvement in fetal structure visibility by 26% (51% to 77% before and after the infusion respectively). There is also some low quality data that may indicate a potential benefit of amnioinfusion is to facilitate external cephalic version. [2] Amnioinfusion can be used during labor to prevent umbilical cord compression.
Clinical guideline, UK National Institute for Health and Clinical Excellence, June 2001. Josie L. Tenore: "Methods for cervical ripening and induction of labor"; Archived 2008-05-16 at the Wayback Machine. American Family Physician, 15 May 2003. "Catecholamines – blood". National Library of Medicine . N.p., n.d. Web. 28 Mar. 2011.
Oligohydramnios can sometimes be treated with bed rest, oral and intravenous hydration, antibiotics, steroids, and amnioinfusion. [citation needed] The opposite of oligohydramnios is polyhydramnios, an excess volume of amniotic fluid in the amniotic sac. Amniotic fluid embolism is a rare but very often fatal condition for both mother and child.
Umbilical cord compression may be relieved by the mother switching to another position or through maternal hydration. Secondary treatments include amnioinfusion. In persistent severe signs of fetal distress, Cesarean section may be needed.