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A niche, also known as a Cesarean Scar Defect or an Isthmocele, is a defect in the wall of the uterus after a cesarean section. [2] You can imagine it as if the wound of the uterus is being closed after a cesarean section, but it's receding a little bit at the inside of the uterus.
The mechanism of how scar ectopic pregnancy still remains unknown. However, the possibility that defects may form to the scarring from previous procedures/traumas such as caesarean section, dilation, hysterotomy, abnormal placentation can cause scar ectopic pregnancy. [4]
Transvaginal ultrasonography – Ultrasound is performed through the vagina; Transabdominal ultrasonography – Ultrasound is performed across the abdominal wall or through the abdominal cavity; In normal state, each body tissue type, such as liver, spleen or kidney, has a unique echogenicity. Fortunately, gestational sac, yolk sac and embryo ...
An old cesarean scar may undergo dehiscence; with further labor the woman may experience abdominal pain and vaginal bleeding, though these signs are difficult to distinguish from normal labor. Often a deterioration of the fetal heart rate is a leading sign, but the cardinal sign of uterine rupture is loss of fetal station on manual vaginal exam.
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 ...
Asherman's syndrome (AS) is an acquired uterine condition that occurs when scar tissue forms inside the uterus and/or the cervix. [1] It is characterized by variable scarring inside the uterine cavity, where in many cases the front and back walls of the uterus stick to one another.
Gillian Anderson opened up on TODAY about the pressure she felt to return to "The X Files” set just 10 days after giving birth. Anderson welcomed her first child, daughter Piper, in 1994, when ...
[55] [56] Furthermore, prior cesarean delivery is one of the most common risk factors for placenta accreta, due to the presence of a uterine scar leading to abnormal decidualization of the placenta. [57] Due to abnormal adherence of the placenta to the uterine wall, cesarean delivery is often indicated, as well as cesarean hysterectomy. [54]