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Studies have shown a slight increase in risk of infant mortality for births in the 41st and particularly 42nd week of gestation, as well as a higher risk of injury to the mother and child. [18] Due to the increasing risks of advanced gestation, induction appears to reduce the risk for caesarean delivery after 41 weeks' gestation and possibly ...
[2] [3] [13] For a healthy pregnancy, medical induction of labor or cesarean section are not recommended before 39 weeks unless required for other medical reasons. [2] There may be certain medical reasons for early delivery such as preeclampsia. [14] Preterm birth may be prevented in those at risk if the hormone progesterone is taken during ...
A 2019 randomized control trial of induced labor at 42 or 43 weeks was terminated early due to statistical evidence of "significantly increased risk for women induced at the start of week 43". The study implies clinical guidelines for induction of labor no later than at 41 gestational weeks. [22]
The decision to perform an induction must be made after weighing the risks and benefits, but is safer after 39 weeks. [17] Events after 42 weeks are considered postterm. [62] When a pregnancy exceeds 42 weeks, the risk of complications for both the woman and the fetus increases significantly.
New Zealand: In 2003, 2.03% of induced abortions were done between weeks 16 and 19, and 0.56% were done over 20 weeks. [28] Norway: In 2005, 2.28% of induced abortions were performed between 13 and 16 weeks, 1.24% of abortions between 17 and 20 weeks, and 0.20% over 21 weeks. [29]
When the fetus is 34 to 37 weeks gestation, the risk of being born prematurely must be weighed against the risk of PROM. Previously it was recommended that delivery be carried out as if the baby was term. [11] [8] A 2017 Cochrane review however found waiting resulted in better outcomes when pregnancy is before 37 weeks. [5]
Delivery from 34 weeks may be important to reduce the risk of stillbirth, as a 2019 study identified the level of bile acids at which stillbirth risk rises. This research, published in The Lancet, also suggests that around 90% of women with ICP could wait until 39 weeks of pregnancy to be induced. However, this relies on regular bile acid ...
Gestational age: 35 and 0 days until 39 weeks and 6 days old. Embryonic age: Weeks nr 34–38. 33–37 weeks old. The fetus is considered full-term at the end of the 39th week of gestational age. It may be 48 to 53 cm (19 to 21 in) in length. The lanugo is gone except on the upper arms and shoulders. Fingernails extend beyond fingertips.