A 28-year-old primigravida at 32 weeks gestation presents to the emergency department with sudden onset severe abdominal pain and vaginal bleeding. On examination, the uterus is tender and rigid. Fetal heart rate is 80 bpm. Ultrasound confirms placental abruption with 40% placental separation. What is the most appropriate immediate next step in management?

Explanation

## Clinical Context This is a case of **severe placental abruption** with signs of fetal compromise (bradycardia at 80 bpm) and maternal hemodynamic instability (rigid, tender uterus suggesting concealed hemorrhage). ## Management Algorithm for Abruption ```mermaid flowchart TD A[Placental Abruption Diagnosed]:::outcome --> B{Maternal Stability?}:::decision B -->|Unstable/Hemorrhage| C[IV access, cross-match, fluids]:::action B -->|Stable| D{Fetal Viability?}:::decision C --> E{Fetal Heart Rate Normal?}:::decision D -->|Viable + FHR normal| F[Expectant management if <20% separation]:::action D -->|Viable + FHR abnormal| G[Emergency LSCS]:::urgent E -->|Abnormal/Bradycardia| G E -->|Normal| H[Consider expectant vs delivery based on severity]:::decision G --> I[Deliver baby + control hemorrhage]:::action ``` ## Key Point: **Severe abruption with fetal bradycardia is an obstetric emergency requiring immediate delivery.** The fetal heart rate of 80 bpm indicates fetal distress; combined with maternal signs of shock (rigid uterus, pain), this mandates emergency cesarean section. ## High-Yield Management Principles: | Severity | Maternal Status | Fetal Status | Management | |----------|-----------------|--------------|-------------| | **Mild (<20% separation)** | Stable | Normal FHR | Expectant (if ≥34 weeks) or delivery at term | | **Moderate (20–50%)** | Stable/borderline | Normal FHR | Delivery at ≥34 weeks; expectant <34 weeks | | **Severe (>50%)** | Unstable/shock | Bradycardia/loss | **Emergency LSCS after resuscitation** | ## Clinical Pearl: **Fetal bradycardia (<100 bpm) in abruption = fetal hypoxia.** This is a non-reassuring sign and indicates the need for immediate delivery, not observation. Maternal shock (tachycardia, hypotension, rigid uterus) suggests concealed hemorrhage and requires aggressive fluid resuscitation + emergency delivery. ## Immediate Actions Before LSCS: 1. Two large-bore IVs, cross-match 4–6 units PRBCs 2. Continuous fetal monitoring 3. Anesthesia and obstetric team notification 4. Prepare for postpartum hemorrhage (DIC risk high) 5. Deliver within 15–30 minutes **Tocolytics are contraindicated** in severe abruption with fetal compromise; they delay delivery and worsen fetal outcome. **Expectant management** is only for mild abruption with reassuring fetal status and maternal stability.