A 32-year-old multigravida (G3P2) from Delhi presents at 28 weeks of gestation for a routine antenatal visit. Fundal height is 26 cm (2 cm less than expected). Ultrasound confirms IUGR with estimated fetal weight of 900 g (5th centile). Umbilical artery Doppler shows pulsatile flow with normal diastolic component (S/D ratio 3.2). Cerebroplacental ratio is 1.8 (normal 1.08). Middle cerebral artery peak systolic velocity is normal. Amniotic fluid volume is normal. Maternal blood pressure is 140/90 mmHg, and urine dipstick shows 1+ proteinuria. What is the most appropriate next step in management?

Question

A 32-year-old multigravida (G3P2) from Delhi presents at 28 weeks of gestation for a routine antenatal visit. Fundal height is 26 cm (2 cm less than expected). Ultrasound confirms IUGR with estimated fetal weight of 900 g (5th centile). Umbilical artery Doppler shows pulsatile flow with normal diastolic component (S/D ratio 3.2). Cerebroplacental ratio is 1.8 (normal > 1.08). Middle cerebral artery peak systolic velocity is normal. Amniotic fluid volume is normal. Maternal blood pressure is 140/90 mmHg, and urine dipstick shows 1+ proteinuria. What is the most appropriate next step in management?

Accepted Answer

C. Admit for inpatient monitoring, initiate antihypertensive therapy, and administer corticosteroids; deliver at 28 weeks if any deterioration. ## Clinical Context
This is a case of **IUGR with preeclampsia at 28 weeks** — a high-risk combination requiring **inpatient management**, not outpatient monitoring.

## Key Diagnostic Features

| Feature | Finding | Interpretation |
|---------|---------|----------------|
| **Fundal height** | 26 cm at 28 weeks | 2 cm lag → IUGR |
| **Estimated fetal weight** | 900 g (5th centile) | Confirmed IUGR |
| **UA S/D ratio** | 3.2 | Normal (not elevated) |
| **Cerebroplacental ratio** | 1.8 | Normal (> 1.08) |
| **MCA-PSV** | Normal | No fetal anemia |
| **Amniotic fluid** | Normal | No oligohydramnios |
| **Maternal BP** | 140/90 mmHg | Hypertension |
| **Proteinuria** | 1+ | Preeclampsia likely |

## Why Option C is Correct

At **28 weeks with preeclampsia + IUGR**, the standard of care per ACOG, RCOG, and FOGSI guidelines mandates:

1. **Inpatient admission** — Preeclampsia at 28 weeks carries risk of rapid deterioration (eclampsia, HELLP, abruption). Outpatient management is NOT safe at this gestational age with confirmed proteinuria.
2. **Antihypertensive therapy** — To maintain BP < 140/90 mmHg and prevent maternal end-organ damage (stroke, eclampsia).
3. **Corticosteroids (betamethasone/dexamethasone)** — Mandatory at 28 weeks to accelerate fetal lung maturity in anticipation of possible preterm delivery. This is a time-sensitive intervention.
4. **Delivery if deterioration** — If maternal condition worsens (severe features: BP ≥ 160/110, HELLP, eclampsia) or fetal condition deteriorates (absent/reversed end-diastolic flow, abnormal CTG), delivery is indicated regardless of gestational age.

**Key Point:** Even with currently **normal Doppler indices**, the combination of preeclampsia + IUGR at 28 weeks is inherently unstable. RCOG Green-top Guideline No. 31 and ACOG Practice Bulletin No. 222 both recommend **inpatient monitoring** for preeclampsia before 34 weeks, with corticosteroids administered promptly.

**High-Yield:** Corticosteroids are indicated whenever preterm delivery before 34 weeks is anticipated or possible — this is a non-negotiable step at 28 weeks with preeclampsia. Option B (weekly outpatient ultrasound, plan delivery at 34 weeks) fails to address the **immediate need for corticosteroids and inpatient monitoring**, making it suboptimal.

**Clinical Pearl:** The distinction between B and C hinges on **level of care and corticosteroids**. Option B omits corticosteroids and proposes outpatient management — both inappropriate for preeclampsia at 28 weeks. Option C correctly mandates admission + antihypertensives + corticosteroids, with delivery triggered by deterioration rather than a fixed gestational age target.

## Why NOT Option A (Immediate Cesarean)?
- Normal Doppler and normal CPR indicate the fetus is not in immediate danger.
- At 28 weeks, neonatal morbidity/mortality is very high; delivery should be deferred unless maternal or fetal deterioration occurs.

## Why NOT Option B (Outpatient, Deliver at 34 Weeks)?
- Outpatient management is **unsafe** for preeclampsia at 28 weeks with proteinuria.
- Omits **corticosteroids**, which are mandatory at this gestational age.
- Weekly ultrasound alone is insufficient surveillance for a rapidly evolving condition.

## Why NOT Option D (Expectant Until Term)?
- Preeclampsia with proteinuria is a contraindication to prolonging pregnancy to term.
- Risk of eclampsia, abruption, and fetal death increases significantly without active management.

*(Per ACOG Practice Bulletin 222, RCOG Green-top Guideline 31, and Williams Obstetrics 25th ed., Chapter 40)*

Answer

A. Perform immediate cesarean section and deliver the baby

Answer

B. Perform expectant outpatient management with fortnightly ultrasound and deliver at term

Answer

D. Start antihypertensive therapy, arrange weekly ultrasound monitoring, and plan delivery at 34 weeks if stable

Explanation

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