Chronic Hypertension

O10.0-4/O10.9


GENERAL MEASURES

Lifestyle modification

No alcohol should be taken.
Regular moderate exercise, e.g. 30 minutes brisk walking at least 3 times a week.
Smoking cessation.
Aim to keep BP < 140/90 mmHg.
Screen for end-organ damage.
Fetal surveillance by symphysis-fundus height (SFH) growth.
Ask mother about fetal movements at each antenatal visit.

Consider labour induction if:

  • BP persistently 160/110 mmHg, or
  • pregnancy of ≥ 38 weeks duration, or
  • in the presence of maternal or fetal compromise, e.g. poor SFH growth and oligohydramnios, etc.

MEDICINE TREATMENT

See prevention and treatment of pre-eclampsia.
Switch ACE-inhibitors and diuretics to methyldopa and/or amlodipine. Women should be advised that there’s an increased risk of congenital abnormalities if ACE-inhibitors were taken during pregnancy.