Se recomienda clasificar a las pielectasias de acuerdo al grado de dilatación en leve (oligoamnios, sin embar-. Liquido amniotico. Polihidramnios – Oligohidramnios. Indice de Liquido Amniotico. clasificación de la embarazada de bajo riesgo, de alto riesgo o de muy alto .. Los casos con sospecha clínica de RCI, excluidos el oligoamnios, el error de.

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Frequency, distribution, and theoretical mechanisms of hematologic and weight discordance in monochorionic twins. Serial amniocenteses in the management of twintwin transfusion syndrome: Am J Obstet Gynecol. The patient had a first trimester combined screening test with low risk for chromosomal abnormalities. Fetal origins of coronary heart disease. The cervix was long and closed, no funnelling, and measured 30 mm Figure 5.

Ultrasound predictors of mortality in monochorionic twins with selective intrauterine growth restriction. The explanation to this finding starts in the bad general condition of the small baby whose low central blood oligohiframnios, due to lack of oxygenation, produces a low vascular pressure in the placental branches of its umbilical arteries that is not high enough to overcome the pressure of the umbilical vein branches of the big baby at the level of the A-V anastomosis.

Feto creciendo en p. Es necesario considerar en el intraparto:.

Embarazo y liquido amniótico by itzel Hernandez on Prezi

Am J Obstet Gynecol. The Twin Transfusion Syndrome: And second, an effective ultrasound-fetoscopic correlation that let us assess the progression of the disease and decide the most appropriate moment to intervene considering the ultrasound and feto scopic findings already described and yet to be studied.

Each of these types has different placental characteristics, management and prognosis clsificacion.

Alfirevic Z, Neilson JP. Considering the deterioration of the small twin amniotic fluid and Dopplers and its high chance of intrauterine demise, we decided to perform the fetal surgery mainly to protect the wellbeing of the healthy clasuficacion thus avoiding the consequent exsanguination of this twin through the placen-tal anastomoses.

Placental sharing, birthweight discordance, and vascular anastomoses in monochorionic diamniotic twin placentas. Recurrent twin-twin transfusion syndrome after selective fetoscopic laser photocoagulation: Twin-to-twin transfusion syndrome results from dynamic asymmetrical reduction in placental anastomoses: A woman with a monochorionic diamniotic twin pregnancy was referred to our Centre due to a discrepancy in size between the foetuses. The vascular anastomoses in monochorionic twin pregnancies and their clinical consequences.


Fetal nutrition and cardiovascular disease in adult life. It was born oligohidraknios 34 weeks and 4 days by elective caesarean section due to prolonged premature rupture of membranes, oligohydramnios and breech presentation, weighting 2 grams and without any complication.

We concluded that it was a case of MCDA twin pregnancy with selective IUGR type 2 and we decided to monitor her in one week with the high probability of fetal surgery in case of deterioration of the small baby.

Perinatal morbidity clasjficacion mortality rates in severe twin-twin transfusion syndrome: The anatomy of both twins was normal; the deepest pool of amniotic fluid in the small baby was in the normal inferior limit and in the big baby was normal.

Dopplers in the big baby were normal. Twin-twin transfusion syndrome with only superficial placental anastomoses: Cra 27 calle 9.

The management is generally surgical since the prognosis without clasifixacion anything is poor: During the fetoscopy, we identified an arterio-venous anastomosis clasifocacion bidirectional flow, which is atypical in this type of anastomoses unidirectionals and could represent a sign of ominous prognosis for the restricted twin.

Feto creciendo bajo percentil 5. The ultrasound findings that worsen the prognosis of a pregnancy complicated with sIUGR are the discrepancy in the EFW between the twins, Doppler of clasificaccion umbilical artery and ductus venosus of the restricted foetus along with oligohydramnios, gestational age at the moment of the surgery and cervical length 7.

Br J Obstet Gynaecol. After the counselling, the patient accepted the surgery and signed the consent forms. Medwave Jul;12 6: The diagnosis was consistent: Los Dopplers en el gemelo grande eran normales. Fetal membrane healing after spontaneous and iatrogenic membrane rupture: The discrepancy in the nuchal translucencies was not marked 1.

Customized versus population-based birth weight standards for identifying growth restricted infants: As we mentioned before, the shared placental circulation between both babies produce complications inherent to this type of twinning. Umbilical artery Doppler studies in small for gestational age babies reflect disease severity. Case A 23 year-old primigravida with a spontaneous monochorionic diamniotic twin pregnancy was referred to our Unit at 16 weeks of gestation.


We considered this finding a consequence of the low central vascular pressure in the sick foetus and its clasificaxion umbilical arterial branches, not able to overcome the pressure of the umbilical venous branches of the normal foetus at the level of the placental anastomoses.

Síndrome de transfusión fetofetal

Among the identified anastomoses, we clearly found one arterio-venous anastomosis from the restricted fetus towards the oligoyidramnios one that showed a fluctuant colour between red and purple which is unusual in this type of anastomoses unidirectionals. Hydrostatic and osmotic pressure gradients produce manifestations of fetofetal transfusion syndrome in a computerized model of monochorial twin pregnancy.

Role of the fetal renin-angiotensin system. During the fetoscopy, we performed a sequen tial laser placental ablation, identifying first the anastomoses and then burning along the placental equator. Her neurological development has been adequate 6 months of age.

The big baby remained with normal Dopplers. This originates a fluctuant change of colour observed during the fetoscopy between purple and red in the arterial part of the A-V anastomosis that belongs to the small baby. Long-term outcome in twin-twin transfusion syndrome treated with serial aggressive amnioreduction.

We consider important to communicate this case because, in addition to the ultrasound findings of ominous prognosis, we found also a fetoscopic sign that worsens the prognosis for the restricted foetus reflecting its critical ill condition: Received for publication 22 June and accepted for publication on 10 July The fetoscopic surgery was performed uneventfully, with local anaesthesia and without any maternal complication.