Κατεύθυνση Παθολογία της Κύησης
Library of the School of Health Sciences

2012-10-16

2012

Τουμπανάκης Δημήτριος -Νικόλαος

Καθ. Σαλαμαλέκης Εμμανουήλ

Ανωμαλίες πρόφυσης του πλακούντα

Spanish

Placenta previa, placenta accreta, and vasa previa are important causes of
bleeding in the second half of pregnancy and in labor. Risk factors for
placenta previa include prior caesarean delivery, pregnancy termination,
intrauterine surgery, smoking, multifetal gestation, increasing parity, and
maternal age. The diagnostic modality of choice for placenta previa is
transvaginal ultrasonography, and women with a complete placenta previa should
be delivered by caesarean. Small studies suggest that, when the placenta to
cervical os distance is greater than 2 cm, women may safely have a vaginal
delivery. Delivery should take place at an institution with adequate blood
banking facilities. The incidence of placenta accreta is rising, primarily
because of the rise in caesarean delivery rates. This condition can be
associated with massive blood loss at delivery. Prenatal diagnosis by imaging,
followed by planning of peripartum management by a multidisciplinary team, may
help reduce morbidity and mortality. Women known to have placenta accreta
should be delivered by caesarean, and no attempt should be made to separate the
placenta at the time of delivery. The majority of women with significant
degrees of placenta accreta will require a hysterectomy. Although successful
conservative management has been described, there are currently insufficient
data to recommend this approach to management routinely. Vasa previa carries a
risk of fetal exsanguination and death when the membranes rupture. The
condition can be diagnosed prenatally by ultrasound examination. Good outcomes
depend on prenatal diagnosis and caesarean delivery before the membranes
rupture.

Placenta, Previa, Accreta, Haemorrhage, Hysterectomy

No

0

Yes

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https://pergamos.lib.uoa.gr/uoa/dl/object/1310118