amniotic


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Related to amniotic: Amniotic band, Amniotic band syndrome, Amniotic fluid embolism, Amniotic egg, Amniotic membrane

amniotic

 [am″ne-ot´ik]
pertaining to the amnion.
amniotic band syndrome a condition characterized by isolated or multiple constriction defects of the fingers, toes, limbs, and less frequently the skull, face, or viscera. It results from a tear of unknown etiology in the amnion, which allows amniotic fluid and fetal parts to escape from the amnion into the chorion. When the amnion and chorion are separated, strands from either the maternal amnion or the fetal chorion may entangle fetal parts. As the fetus grows the strands become more constrictive, causing defects.
amniotic fluid the albuminous fluid contained in the amniotic sac; called also liquor amnii and, informally, waters. The fetus floats in this fluid, which serves as a cushion against injury from sudden blows or movements and helps maintain a constant body temperature for the fetus. Normally the fluid is clear and slightly alkaline; discoloration or excessive cloudiness may indicate fetal distress or disease, as in erythroblastosis fetalis in which fluid is usually greenish yellow. The amount varies from 500 to 1500 ml.

An excessive amount of amniotic fluid (more than 2000 ml) is called hydramnios; the amount may be as much as several gallons. The cause of this condition is unknown but it frequently accompanies multiple pregnancy or some congenital defect of the fetus, especially hydrocephalus and meningocele.

An abnormally small amount of amniotic fluid is referred to as oligohydramnios; there may be less than 100 ml of fluid present. The cause is unknown. The condition may produce pressure deformities of the fetus, such as clubfoot or torticollis. Adhesions may result from direct contact of the fetus with the amnion.

Removal of a sample of amniotic fluid from the pregnant uterus is called amniocentesis.

am·ni·on·ic

(am'nē-on'ik),
Relating to the amnion.
Synonym(s): amniotic

amniotic

/am·ni·ot·ic/ (am″ne-ot´ik) pertaining to or developing an amnion.

amniotic

See amnion.

amniotic

adjective Referring to or derived from the amnion.

amniotic

Pertaining to the AMNION.

am·ni·on·ic

(am'nē-on'ik)
Relating to the amnion.
Synonym(s): amniotic.

amniotic

pertaining to the amnion.

amniotic fluid
the albuminous fluid contained in the amniotic sac.
amniotic plaque
small, 2 to 4 mm diameter, poxlike lesion on the inside of the amnion. Constant on the bovine amnion during the middle trimester and causes no problems nor has any known function.
amniotic sac
the amnion; the sac enclosing the fetus suspended in the amniotic fluid.
amniotic vesicle
see amniotic sac (above). Palpation of the vesicle per rectum in the cow is a common test for pregnancy between the 35th and 65th day of pregnancy.

Patient discussion about amniotic

Q. what does it mean when an ultrasound shows an empty amniotic sac and no baby?

A. This exact thing happened with my friend who is now 22 weeks with her first baby. She had 2 additional sacs - both empty - and the doctor said that the pregnancy had probably started out as triplets but that only one of the embryos had actually established and continued to grow.

Her doctor said it is very common for a woman to have more than one egg fertilize but that in most cases the pregnancy continues as a singleton only. She told my friend that the empty sacs would just disappear through time (which they did) and that they posed no danger to her baby.

More discussions about amniotic
References in periodicals archive ?
Additionally, with our industry leadership position as the only provider of a human tissue matrix composed of both umbilical cord and amniotic membrane, we can continue to accelerate the growth of the company.
The present study comprises 71 participants who provided all three urine samples, including 69 for whom an amniotic fluid sample also was available.
In the future, we hope that stem cells found in amniotic fluid will be used more widely in therapies and in research, particularly for the treatment of congenital malformations," he said.
is likely to be amniotic fluid or infection, which can then be confirmed
The classic presence of fetal squamous cells in the maternal circulation can occur even in the absence of amniotic fluid embolism and is therefore not sensitive or specific enough to establish a diagnosis.
Amniox parent TissueTech pioneered the clinical application of human umbilical cord and amniotic membrane to promote rapid, scar-less healing that occurs in utero to wounds in adults.
We established control values by measuring GAA and creatine in 82 amniotic fluid samples from women at risk for carrying a fetus with trisomy 21; samples were obtained by amniocentesis between 15 and 20 weeks of amenorrhea.
Previously, in the same study population, the rate of successful ECV rose from 42% with an amniotic fluid index of less than 10 cm to 65% with an AFI greater than 15 cm.
Chronic and Refractory Plantar Fasciitis Treatment with Single-Dose Dehydrated Amniotic Allograft Injection", authored by Myron Hansen, Dr.
Levels may also be high if there is too little fluid in the amniotic sac around the baby, if there's more than one baby, or if the pregnancy is further along than estimated.
AFCell Medical, Parsippany, NJ, and the Musculoskeletal Transplant Foundation (MTF), Edison, NJ, announced they have formed an alliance to provide amniotic tissue transplants to hospitals.
Plasma markers that are altered during pregnancy, such as [beta] human chorionic gonadotropin, have been used as markers in amniotic fluid and in certain cases may be used as markers to predict fetal outcome.