postterm pregnancy


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postterm pregnancy

postterm pregnancy

Post-datism Obstetrics A gestation correctly dated by Naegele's rule and ≥ 42 wks in duration; post-mature infants have ↑ M&M:
1. they are bigger and.
2. the placenta has 'planned obsolescence', and undergoes fibrosis and infarction after 40-42 wks Clinical Absent lanugo, attenuated vernix caseosa, long finger- and toenails, abundant scalp hair, pale, parchment-like or desquamating skin and ↑ alertness. Cf Prematurity.

postterm pregnancy

Extension of the duration of pregnancy beyond the beginning of the 42nd week (294 days) of gestation, as counted from the first day of the last normal menstrual period. This occurs in an estimated 3% to 12% of pregnancies. Complications include oligohydramnios, passage of meconium, macrosomatia, and dysmaturity, all of which may lead to poor pregnancy outcome, including perinatal death.
See: postmaturity syndrome
See also: pregnancy
References in periodicals archive ?
There is a common perception, backed by only a few studies, that routine induction of postterm pregnancy increases the rate of cesarean section, said Dr.
This is the presumption that has led people to want to wait on a postterm pregnancy but that presumption is not correct.
In an accurately dated postterm pregnancy, with few exceptions, the fetal risks associated with expectant management outweigh any benefits.
The three studies that favored induction of postterm pregnancy reported a cesarean section rate of 19.
20,21] This pattern has changed with use, so that currently women with some conditions such as hypertension, diabetes, intrauterine growth retardation, Rh sensitization, or postterm pregnancy are often tested twice weekly.