Clear egg: what are the warning signs?

Empty gestational sac: what is a clear egg?

A clear egg means a abnormality of pregnancy which results in a lack of embryo. ” A clear egg is an egg that has membranes (amnios and chorion) and the future placenta (the trophoblast) but where there is no embryo, confirms Dr. Odile Bagot. On ultrasound, we see that the gestational sac is empty. »

Remember that after fertilization, the 23 chromosomes contained in the sperm will merge with 23 chromosomes of the oocyte (ovule) to form the baby’s first cell. This first cell will then split to give two cells, then four, then sixteen, etc. Thus is formed the egg, made up of the embryo and the embryonic annexes: the amnion and the chorion which will give the amniotic membrane as well as the trophoblast (future placenta). “Nevertheless, it happens that the embryostop training and this despite all the apparent signs of pregnancy: amenorrhea, nausea, tense breasts and positive beta-HCG,” recalls Dr. Bagot.

Pregnancy: what are the symptoms of a clear egg?

The symptoms of a clear egg are the same as those of an ongoing pregnancy:

  • pregnancy test positive,
  • lack of rules (amenorrhea),
  • tension in the breasts,
  • heaviness in the lower abdomen,
  • drowsiness,
  • need to urinate more frequently,
  • nausea.

What are the causes ?

The causes of this non-evolving pregnancy are still enough misknown. ” It is likely that the clear egg either due to a chromosomal abnormality at the time of fertilization, during the exchange of chromosomes, says Dr. Bagot. It happens that there is a small grain of sand and that unfortunately the mechanism seizes up. You should know that it is quite common and that this does not bode well for future difficulties to design! “. Other causes such as significant exposure to toxins – especially heavy metals – infection at the very beginning of pregnancy, hormonal imbalance or even a malformation of the placenta are also advanced.

Clear egg: is this a common anomaly in pregnant women?

The clear egg is a relatively frequent anomaly of pregnancy. It is one of the causes of early miscarriages. “The number of miscarriages increases with age, recalls the National College of French Gynecologists and Obstetricians (CNGOF). The average first trimester miscarriage rate before 35 years old is about 15%he’s from 18% between 35 and 39 years oldof 34% at age 40 and of 53% at age 45 and over. Miscarriage is a stop of the evolution of pregnancy. It is most often due to chromosomal abnormalities of the embryo. It is therefore a security system which takes place naturally. Pregnancy terminates spontaneously because it is abnormal. And Dr. Bagot adds: “The mechanisms involved in the clear egg are of the same order. »

Diagnosis: when and how is a clear egg detected?

On ultrasound examination

Apart from warning signs of a miscarriagebleeding, pain in the lower abdomenthe clear egg is discovered, generally, during the first ultrasound of pregnancy. “On examination, we clearly see the egg in the wombbut the gestational sac is empty, there is no embryo and no cardiac activity is detected, confirms Dr. Odile Bagot. This means that the pregnancy is not progressing. In order to confirm the diagnosis, the doctor usually performs an ultrasound a few days later. Indeed, it is possible that the age of the pregnancy was incorrectly assessed and that the embryo, which is too small, is not yet visible on the ultrasound.

Blood test: what is the beta HCG level?

At the same time, your doctor may also request a beta-HCG assay in order to check whether the pregnancy is progressing or not. In front of a ongoing pregnancythe rate doubles every 48 hours. In the opposite case, the rate stagnates and no longer increases. “In the case of a clear eggthe beta-HCG level may continue to increase for some time since the pregnancy hormone is secreted by the trophoblast egg,” says the specialist.

Clear egg: what is the treatment?

Natural expulsion of the clear egg: bleeding and spontaneous miscarriage

In most of the cases, the clear egg is expelled naturally. There then occurs a period-like bleeding. As for all miscarriagesyour obstetrician-gynecologist should ensure that all of the embryonic appendages has been evacuated. ” A complete eviction supervision of the gestational sac is carried out by regular check-up ultrasoundsconfirm the authors of the Big book of my pregnancy. In case of spontaneous expulsion, your doctor will verify by an ultrasound that it was complete, to eliminate the uterine retention with the risk of subsequent bleeding. »

It happens that the clear eggdoes not go away on its own. ” Of the medications are then prescribed for terminate pregnancy and trigger uterine contractions, says Dr. Odile Bagot. It is also possible to perform an aspiration. »

Medical treatment

When the egg does not escape naturallyit is then necessary to intervene by drug route or of surgical way. The first method has an 85% success rate. “The drugs will promote uterine contractions and therefore the complete detachment of the gestational sac, explains Dr. Odile Bagot. This induced miscarriage can be painful and anxiety, some patients prefer to be hospitalized and undergo a surgical intervention. »

Surgical treatment: aspiration

In case of persistence of the clear egg despite drug treatment or bleeding complications, a surgical intervention by intrauterine aspiration will allow the complete evacuation of the pregnancy. This takes place in ambulatoryunder General anaesthesia and only lasts a few minutes. “After giving the patient medication to dilate the cervix, the surgeon uses a cannula to aspirate the contents of the uterus,” explains Dr. Odile Bagot.

The occurrence of a clear egg usually does not no consequences on future pregnancies and the risk of recurrence is rare. On the other hand, it is often experienced as a real miscarriage by patients. “Once the pregnancy has been evacuated, there is therefore a mourning phenomenonwe cannot deny it,” concludes Dr. Odile Bagot.

Beware of Rhesus negative patients

“If you are Rhesus negative, the bleeding caused by spontaneous miscarriage requires precautions, remind the authors of the Big book of my pregnancy. Especially if your companion is Rhesus positive. An injection of immunoglobulins (called “anti-D”) is performed within three days of the first bleeding or expulsion, in order to prevent the maternal body from producing antibodies against a future Rhesus positive embryo. »

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