Placenta praevia
A placenta implanted near the outlet of the uterus, so that at the time of delivery the placenta precedes the baby. Placenta praevia can cause painless bleeding in the last third of pregnancy, and may be a reason for a C-section. Also known as low placenta.

* * *

a placenta situated wholly or partially in the lower and noncontractile part of the uterus. When this becomes elongated and stretched during the last few weeks of pregnancy, and the cervix becomes stretched either before or during labour, placental separation and haemorrhage will occur. The cause is not known. In the more severe degrees of placenta praevia, where the placenta is situated entirely before the presenting part of the fetus, delivery must be by Caesarean section. In lesser degrees of placenta praevia, vaginal delivery may be undertaken with safety.

Medical dictionary. 2011.

Look at other dictionaries:

  • Placenta praevia — (placenta previa AE) is an obstetric complication in which the placenta has attached to the uterine wall close to or covering the cervix [http://www.uabhealth.org/15407/] . It can some times occur in the latter part of the first trimester, but… …   Wikipedia

  • PLACENTA PRAEVIA — Au cours de la grossesse, le placenta s’insère normalement sur le fond utérin et l’une des faces du corps utérin. Le placenta praevia est un placenta inséré trop bas, sur le segment inférieur de l’utérus, au moins en partie, si bien que la… …   Encyclopédie Universelle

  • Placenta praevia — Klassifikation nach ICD 10 O44 Placenta praevia …   Deutsch Wikipedia

  • Placenta praevia — Le placenta praevia est une localisation anormale du placenta qui peut être responsable d hémorragies sévères au cours du troisième trimestre de la grossesse. Le placenta est normalement inséré dans le fond de l utérus, il est dit praevia lorsque …   Wikipédia en Français

  • placenta praevia — a condition in which the placenta is situated wholly or partially in the lower and noncontractile part of the uterus. When this becomes elongated and stretched during the last few weeks of pregnancy, and the cervix becomes stretched either before …   The new mediacal dictionary

  • placenta praevia — ▪ pathology       implantation of the placenta at a point so low in the uterus that the placenta is close to the opening into the cervix or covers the opening, either partially or completely. The placenta is the temporary organ that develops… …   Universalium

  • Placenta praevia — pirmeigė placenta statusas T sritis embriologija atitikmenys: lot. Placenta praevia ryšiai: platesnis terminas – padėties variacijos …   Medicininės histologijos ir embriologijos vardynas

  • placenta praevia — [ pri:vɪə] (US placenta previa) noun Medicine a condition in which the placenta partially or wholly blocks the neck of the uterus, so interfering with normal delivery of a baby. Origin C19: from L. praevia going before , feminine of praevius …   English new terms dictionary

  • placenta praevia — /pləsɛntə ˈpriviə/ (say pluhsentuh preeveeuh) noun a condition in pregnancy in which the placenta is superimposed on the exit of the uterus. {New Latin: a placenta which is in the way} …   Australian English dictionary

  • placenta praevia — (лат. плацента предлежащая ) см. Предлежание плаценты …   Большой медицинский словарь

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”