What is the classification and definition of hypertension in pregnancy?
As per ACOG and ISSHP, the classification and definitions of hypertensive disorders of pregnancy are as follows:
- Preeclampsia/eclampsia: sBP >140 mmHg and dBP >90 mmHg and proteinuria >300 mg in 24 hours after 20 weeks of gestation
- Transient hypertension of pregnancy: Same as above but no proteinuria
- Chronic hypertension: Hypertension antedating pregnancy
- Chronic hypertension with superimposed preeclampsia: Worsening blood pressure with proteinuria >300 mg in 24 hours
ACOG Committee on Obstetric Practice. ACOG practice bulletin. Diagnosis and management of preeclampsia and eclampsia. Obstet Gynecol. 2002;99(1): 159 67.
Brown MA et al. The classification and diagnosis of the hypertensive disorders of pregnancy: statement from the International Society for the Study of Hypertension in Pregnancy (ISSHP). Hypertens Pregnancy. 2001;20(1):IX-XIV.