Vasa praevia
Vasa Praevia (pronounced: /ˈveɪzə ˈpriːviə/)
Etymology
The term "Vasa Praevia" originates from Latin, where "vasa" means vessels and "praevia" means preceding.
Definition
Vasa praevia is a rare but potentially lethal condition in obstetrics where the fetal blood vessels, contained within the umbilical cord or placenta, cross over the cervix beneath the fetus prior to birth. These vessels are at risk of rupture when the supporting membranes rupture, as they are unsupported by the umbilical cord or placental tissue.
Related Terms
- Umbilical cord: The conduit between the developing embryo or fetus and the placenta.
- Placenta: An organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
- Cervix: The lower part of the uterus in the human female reproductive system.
- Fetus: An unborn offspring of a mammal, in particular, an unborn human baby more than eight weeks after conception.
See Also
References
- Oyelese, Y; Smulian, JC (2006). "Placenta previa, placenta accreta, and vasa previa". Obstetrics and Gynecology. 107 (4): 927–41.
External links
- Medical encyclopedia article on Vasa praevia
- Wikipedia's article - Vasa praevia
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