Tāmaki Makaurau / Auckland
Aroha Te Rangi
28 weeks + 3 days · first baby
Understand the difference between gestational hypertension and preeclampsia, and know what to do in the next few hours.
Open this conversationGrounded in SOMANZ 2023
A calm companion for blood pressure in pregnancy.
Willow helps you understand a reading, notice red flags, and know when to call — using the Australia and New Zealand obstetric medicine guideline. It will never pretend to be your midwife.
01
Escalate first
Severe readings and red-flag symptoms trigger emergency advice before any conversation continues.
02
Guideline language
Definitions, targets, and prevention steps are taken from SOMANZ 2023 — not from generic internet advice.
03
Adult tone
Plain words. No panic, no false reassurance. You leave with one next step.
The names your team might use
Hypertensive disorders of pregnancy are not one condition. Willow explains the six SOMANZ classifications without applying one to you.
Preeclampsia
New hypertension after 20 weeks plus organ or placental involvement
A multisystem disorder. Proteinuria is common but not required. Involvement can be renal (uPCR ≥ 30 mg/mmol or creatinine > 90 µmol/L), liver (raised transaminases), haematological (platelets < 150 × 10⁹/L or haemolysis), neurological (seizure, persistent headache, visual change), pulmonary oedema, or placental (growth restriction with abnormal Dopplers or oligohydramnios).
Gestational hypertension
New hypertension after 20 weeks, without preeclampsia features
Blood pressure returns to normal within three months after birth. It can still progress to preeclampsia, so close surveillance matters.
Chronic hypertension
Hypertension before pregnancy, or before 20 weeks
Includes women already treated for high blood pressure. Superimposed preeclampsia is diagnosed if preeclampsia features appear after 20 weeks.
Superimposed preeclampsia
Preeclampsia features on chronic hypertension or known kidney disease
After 20 weeks, new organ or placental involvement on a background of chronic hypertension and/or pre-existing renal disease.
White-coat hypertension
High in clinic, normal at home
Raised readings with a clinician present, normal on validated home or ambulatory monitoring. Still needs a plan — it is a recognised HDP category.
Masked hypertension
Normal in clinic, high at home
New in SOMANZ 2023 as a formal category. Home or ambulatory readings are high while clinic readings look normal. Easy to miss without home monitoring.
Demo day personas
Three people. Three moments when the guideline has to become a conversation.
Naarm / Melbourne
Sarah Chen
14 weeks · IVF twins · chronic hypertension
Hear the SOMANZ prevention pathway in plain language so she can have a sharper conversation with her obstetric physician this week.
Open this conversationEora / Sydney
Priya Nair
Day 6 postpartum · breastfeeding
Know what postpartum care should look like this week, whether ibuprofen is appropriate, and what long-term follow-up actually means.
Open this conversationSOMANZ Hypertension in Pregnancy Guideline 2023 (NHMRC-approved). Summary: Shanmugalingam et al., Med J Aust 2024.