This new American University out-of Obstetricians and you may Gynecologists (ACOG) has just given advice to the scientific management of blog post-term maternity. The guidelines starred in the issue off Obstetrics and you will Gynecology .

Post-title pregnancy is understood to be a pregnancy who may have prolonged so you can or beyond 42 weeks regarding gestation (294 weeks, or projected date out of beginning [EDD] and additionally 14 days). Brand new advertised regularity away from blog post-label pregnancy is approximately eight percent. Most cases of article-name pregnancy result from a good prolongation of pregnancy. Almost every other times originate from an inability to precisely explain EDD. The risk of unfavorable sequelae are faster through a keen specific research of gestational many years and diagnosis of blog post-title pregnancy, plus recognition and management of exposure circumstances. A couple strategies that can reduce the likelihood of an adverse fetal consequences tend to be antenatal monitoring and you can induction out-of labor.

Risk circumstances to possess post-term pregnancy range from primiparity and you will early in the day blog post-title maternity. Placental sulfatase deficiency, fetal anencephaly, and men gender had been from the prolongation of pregnancy, and you can hereditary predisposition together with are likely involved.

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The newest EDD are extremely reliably and you will accurately calculated at the beginning of new pregnancy and will feel according to the last identified cycle in females that have normal, normal menstrual schedules. On account of regular differences in the size of infants inside the third trimester, matchmaking brand new pregnancy during this period is actually shorter reputable. When your projected gestational ages because of the a patient’s past period differs from the imagine obtained through assessment with ultrasonography, brand new ultrasound estimate shall be utilized.