Elevated blood-pressure
ICD-10 R03.0 · ICD-11 MC80.0

Treatment of Elevated Blood Pressure in Pregnancy with Chronic or Gestational Hypertension

Hypertension arising before or in the first half of pregnancy requires active management to protect both the pregnant individual and the fetus. This protocol addresses the specific scenario of pre-existing or early-onset elevated blood pressure in pregnancy.

Clinical Scenario

This protocol applies to pregnant individuals with chronic hypertension — defined as prepregnancy hypertension or systolic BP 140–159 mm Hg and/or diastolic BP 90–109 mm Hg prior to 20 weeks of gestation — or with gestational hypertension. Antihypertensive therapy is indicated to prevent maternal and perinatal morbidity and mortality.

Treatment Approach (Partial Overview)

Management centres on oral antihypertensive maintenance therapy using agents selected specifically for safety in pregnancy. Additionally, aspirin has a role in reducing the risk of preeclampsia in this population. The complete list of preferred agents, alternative options, sequencing, and all clinical considerations are outlined in the full structured protocol.

Full regimen, agent selection criteria, and clinical algorithm available via the protocol below.
Treatment target: BP <140/90 mm Hg
Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1161/CIR.0000000000001356

Pregnant individuals with chronic hypertension (defined as prepregnancy hypertension or SBP 140-159 mm Hg and/or DBP 90-109 mm Hg prior to 20 weeks gestation) should receive antihypertensive therapy to achieve BP <140/90 mm Hg to prevent maternal and perinatal morbidity and mortality.

For individuals with hypertension who are planning a pregnancy or who become pregnant, labetalol and extended-release nifedipine are preferred agents to treat hypertension and minimize fetal risk.

Individuals with hypertension who are planning a pregnancy or who become pregnant should be counseled about the benefits of low-dose (81 mg/day) aspirin to reduce the risk of preeclampsia and its sequelae.

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