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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.
There is no target treatment available for placental disease. Associative prevention mechanisms can be a method of minimising the risk of developing the disease, within early stages of pregnancy. Placental syndromes include pregnancy loss, fetal growth restriction, preeclampsia, preterm delivery, premature rupture of membranes, placental ...
667 Retained placenta or membranes, without hemorrhage; 668 Complication (medicine) of the administration of anesthetic or other sedation in labor (childbirth) and delivery; 669 Complication (medicine) Other complications of labor and delivery, not elsewhere classified. 669.5 Forceps delivery or vacuum extractor delivery without mention of ...
If placenta previa is present at the time of delivery, vaginal delivery is contraindicated because the placenta is blocking the fetus's passageway to the vaginal canal. Herpes simplex virus with active genital lesions or prodromal symptoms is a contraindication for vaginal delivery so as to avoid mother-fetal transfer of HSV lesions.
This same study found statistically significant relative risks of maternal anemia, intrapartum fever, unknown bleeding, renal disease, placental previa, hydramnios, placenta abruption, and pregnancy-induced hypertension with the absence of prenatal care.
An important risk factor for placenta accreta is placenta previa in the presence of a uterine scar. Placenta previa is an independent risk factor for placenta accreta. Additional reported risk factors for placenta accreta include maternal age and multiparity, other prior uterine surgery, prior uterine curettage, uterine irradiation, endometrial ablation, Asherman syndrome, uterine leiomyomata ...
Risk factors include pulling on the umbilical cord or pushing on the top of the uterus before the placenta has detached. [1] Other risk factors include uterine atony, placenta previa, and connective tissue disorders. [1] Diagnosis is by seeing the inside of the uterus either in or coming out of the vagina. [2] [6]
Treatment may require blood transfusion or emergency hysterectomy. [2] Placental abruption occurs in about 1 in 200 pregnancies. [5] 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]