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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. The membranes can be ruptured using a specialized tool, such as an amnihook or amnicot, or they may be ruptured by the proceduralist's finger.
In this procedure, a thin needle is inserted into the abdomen of the pregnant woman. [4] The needle punctures the amnion, which is the membrane that surrounds the developing fetus. [4] The fluid within the amnion is called amniotic fluid, and because this fluid surrounds the developing fetus, it contains fetal cells. [4]
The amniotic sac, also called the bag of waters [1] [2] or the membranes, [3] is the sac in which the embryo and later fetus develops in amniotes. It is a thin but tough transparent pair of membranes that hold a developing embryo (and later fetus) until shortly before birth .
Amniotic fluid is removed from the mother by an amniocentesis procedure, where a long needle is inserted through the abdomen into the amniotic sac, using ultrasound guidance such that the fetus is not harmed. Amniocentesis is a low risk procedure, with risk of pregnancy loss between 1 in 1,500 – 1 in 700 procedures.
Positive fern test with amniotic fluid as seen under the microscope. The fern test is a medical laboratory test used in obstetrics and gynecology.The name refers to the detection of a characteristic "fern like" pattern of vaginal secretions when a specimen is allowed to dry on a glass slide and is viewed under a low-power microscope.
Rupture of the membranes is known colloquially as "breaking (one's) water," especially when induced rather than spontaneous, or as one's "water breaking". [2] A premature rupture of membranes (PROM) is a rupture of the amnion that occurs at full term and prior to the onset of labor. [ 3 ]
Amniotic stem cells are the mixture of stem cells that can be obtained from the amniotic fluid [1] [2] as well as the amniotic membrane. [3] They can develop into various tissue types including skin, cartilage, cardiac tissue, nerves, muscle, and bone. [4] The cells also have potential medical applications, especially in organ regeneration. [5]
Membrane Stripping [9] [29] Membrane stripping, otherwise known as membrane sweeping, is a procedure where the obstetrician inserts a finger into the cervix and moves in a sweeping motion to detach the amniotic membrane from the uterus. It is thought to be different from other procedures in that it is less costly compared to the other. While it ...