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Vasa praevia

Vasa praevia
Classification & external resources
Vasa praevia
ICD-10 O69.4
ICD-9 663.5
DiseasesDB 13743
eMedicine med/3276 

Vasa praevia (vasa previa AE) is an obstetric complication defined as "fetal vessels crossing or running in close proximity to the inner cervical os. These vessels course within the membranes (unsupported by the umbilical cord or placental tissue) and are at risk of rupture when the supporting membranes rupture."[1]



These vessels may be torn at the time of labor, delivery or when the membranes rupture. It has a high fetal mortality because of the bleeding that follows. [2]

The classic triad are membrane rupture followed immediately by vaginal bleeding and fetal bradycardia.


Transvaginal color flow Doppler ultrasound is often used for diagnosis. [3][4]


Treatment with an emergency cesarean delivery is usually indicated.[5][6]

See also


  1. ^ Yasmine Derbala, MD; Frantisek Grochal, MD; Philippe Jeanty, MD, PhD (2007). "Vasa previa". Journal of Prenatal Medicine 2007 1 (1): 2-13.Full text
  2. ^ Oyelese K, Turner M, Lees C, Campbell S (1999). "Vasa previa: an avoidable obstetric tragedy.". Obstet Gynecol Surv 54 (2): 138-45. PMID 9950006.
  3. ^ Lijoi A, Brady J. "Vasa previa diagnosis and management.". J Am Board Fam Pract 16 (6): 543-8. PMID 14963081.Full text
  4. ^ Lee W, Lee V, Kirk J, Sloan C, Smith R, Comstock C (2000). "Vasa previa: prenatal diagnosis, natural evolution, and clinical outcome.". Obstet Gynecol 95 (4): 572-6. PMID 10725492.
  5. ^ Bhide A, Thilaganathan B (2004). "Recent advances in the management of placenta previa.". Curr Opin Obstet Gynecol 16 (6): 447-51. PMID 15534438.
  6. ^ Oyelese Y, Smulian J (2006). "Placenta previa, placenta accreta, and vasa previa.". Obstet Gynecol 107 (4): 927-41. PMID 16582134.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Vasa_praevia". A list of authors is available in Wikipedia.
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