Search results
Results from the WOW.Com Content Network
The following have been identified as risk factors for placenta previa: Previous placenta previa (recurrence rate 4–8%), [13] caesarean delivery, [14] myomectomy [10] or endometrium damage caused by D&C. [13] Women who are younger than 20 are at higher risk and women older than 35 are at increasing risk as they get older.
Along with placenta previa and uterine rupture it is one of the most common causes of vaginal bleeding in the later part of pregnancy. [6] Placental abruption is the reason for about 15% of infant deaths around the time of birth. [2] The condition was described at least as early as 1664. [7]
Besides placenta previa and placental abruption, uterine rupture can occur, which is a very serious condition leading to internal or external bleeding. Bleeding from the fetus is rare, but may occur with two conditions called vasa previa and velamentous umbilical cord insertion where the fetal blood vessels lie near the placental insertion site unprotected by Wharton's jelly of the cord. [11]
While Tsigas says all of the causes or contributing factors related to preeclampsia are not fully understood, "but there is general agreement that the placenta plays a key role - and women with ...
Alcohol: Use during pregnancy can cause fetal alcohol syndrome and fetal alcohol spectrum disorder. [67] Tobacco use: During pregnancy, causes twice the risk of premature rupture of membranes, placental abruption and placenta previa. [68] Also, it increases the odds of the baby being born prematurely by 30%. [69]
Preterm birth is the most common cause of death among infants worldwide. [1] ... renal disease, placental previa, hydramnios, placenta abruption, and pregnancy ...
These factors are known to be the primary pathophysiology cause placental disease. Which is considered to be associated with more than half of premature births. [4] Abnormalities present within the spiral arteries lead to higher velocities in blood, in turn causes the maternal villi to shred. [5]
Pregnancy loss refers to death of the fetus at any time during pregnancy. Pregnancy loss most commonly occurs during the first trimester, when it is referred to as early pregnancy loss. Placenta praevia or vasa praevia refers to the placenta or fetal blood vessels, respectively, covering or being located close to the opening of the uterus.