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Vasa previa is diagnosed with ultrasound when echolucent linear or tubular structures are found overlying the cervix or in close proximity to it. Transvaginal ultrasound is the preferred modality. Color, power and pulsed wave Doppler should be used to confirm that the structures are fetal vessels.
If such vessels are identified, vasa previa may be present and cervical length is measured every week to determine the risk of premature rupture of membranes. [ 16 ] Women diagnosed with velamentous cord insertion may also receive counselling about the condition, its risks, and potential courses of action, including preterm delivery or ...
It is used to differentiate whether the blood coming out of vagina is of the mother or fetus during delivery i.e, placenta previa versus vasa previa. It is based on the principle that fetal HbF is resistant to acids and alkali whereas the mother's blood which has HbA is sensitive to acid and alkaline.
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.
The ACOG also note that contraindications for induced labour are the same as for spontaneous vaginal delivery, including vasa previa, complete placenta praevia, umbilical cord prolapse or active genital herpes simplex infection, in which cases a cesarean section is the safest delivery method.
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 ...
Birth Control Review was a lay magazine established and edited by Margaret Sanger in 1917, three years after her friend, Otto Bobsein, coined the term "birth control" to describe voluntary motherhood or the ability of a woman to space children "in keeping with a family's financial and health resources."
Male contraceptives, also known as male birth control, are methods of preventing pregnancy by interrupting the function of sperm. [1] The main forms of male contraception available today are condoms , vasectomy , and withdrawal , which together represented 20% of global contraceptive use in 2019.