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  • Title: Antepartum testing in patients with hypertensive disorders in pregnancy.
    Author: Freeman RK.
    Journal: Semin Perinatol; 2008 Aug; 32(4):271-3. PubMed ID: 18652927.
    Abstract:
    Antepartum fetal testing in pregnant patients with hypertensive disorders may be beneficial in preventing stillbirth and hypoxic sequelae in the fetus. The highest risk patients in this category are those with intrauterine growth restriction, superimposed preeclampsia, associated medical complications such as diabetes, systemic lupus erythematosis, chronic renal disease, or history of a prior stillbirth. The current recommended method of primary testing is a twice weekly modified biophysical profile with either a full BPP or a contraction stress test for backup evaluation of those patients with lack of reactivity or decreased amniotic fluid volume on a modified biophysical profile. Even uncomplicated patients with chronic hypertension or pregnancy-induced hypertension carry an increased risk of perinatal mortality and for these patients testing should begin at 33 to 34 weeks gestation. Patients with complications of intrauterine growth restriction, preeclampsia, diabetes, systemic lupus erythematosis, or chronic renal disease should have antepartum testing begin when intervention for fetal indications is judged to be appropriate, usually beginning at about 26 weeks gestation. Doppler velocimetry may be helpful in further evaluation of those patients in the early third trimester with abnormal primary testing.
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