Pre-vascular Symptoms

Clinical manifestations:

Pre-vascular performance does not remain unchanged, there is some pre-vascular blood vessel rupture occurred in the fetal membrane before rupture can be prenatal or at birth process sometimes occurs at vascular rupture happened clot may be small because of venous bleeding after rupture of fetal emergence of low blood pressure, blood clotting block appeared slow and then stop the bleeding, but again after the hemorrhage, such as one times less amount of bleeding, fetal heart rate can be no change, but little amount of bleeding, fetal heart rate often have to change at this time should be suspect and pre-blood vessels, to seize the opportunity to confirm if this disease, treatment often immediately possible to save the fetus. At the time of artificial rupture of membrane suddenly discovered that bleeding should be suspected of possible pre-vascular, and sometimes after artificial rupture of membrane at the time but no bleeding occurred after hemorrhage, the Department of the beginning of fetal membrane rupture did not affect pre-vascular sites, but when the membrane the breakdown of population expansion. Pre-torn blood vessels and bleeding, a very small number of cases, the bleeding time lasting several hours, but there are still survivors fetus. Can be expressed in fetal heart rate is still sinusoidal fetal heart rate.

Department of presentation fell compression fan-shaped attachment of blood vessels also lead to fetal distress and death of one of the reasons why. This is usually for people to ignore the presentation by the Ministry of fan-shaped vessel of oppression can happen fetal heart rate deceleration, bradycardia, Curl, etc. Let us take the hand of oppression has been pre-30s inside the blood vessels that is found in fetal bradycardia occurred. As some academics have estimated at pre-vascular compression because of the blood vessels so that 50% ~ 60% of fetal death.

Fetal heart rate does not change the specificity of pre-vascular changes, but it is the emergence of obstetricians should take into account the possibility of pre-vascular as soon as possible to make the diagnosis, treatment immediately.

Vaginal examination can be found occasionally in some cases pre-blood vessels, such as the world's first report on vascular Benekiser prefix is found in the vaginal examinations without pulsatile blood vessels, if there is palpable pulsatile blood vessels, but also clear that this diagnosis such as Carp, etc. (1929 ) Example 3 In this connection one at pregnancy diagnosis in the pre-blood vessels, at cesarean section, the fetus survived.

Complications:

The main complications of fetal distress, and even fetal death.