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Non-reassuring fetal status
- Persistent fetal bradycardia
- Pathological CTG / fetal distress
- Severe fetal compromise requiring immediate birth
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Maternal condition requires urgent delivery and vaginal birth would take too long
- Uncontrolled severe hypertension despite treatment
- Eclampsia not stabilizing or recurrent seizures after initial stabilization
- Pulmonary edema, worsening renal failure/oliguria, HELLP syndrome with deterioration, DIC, or suspected placental abruption
- Persistent severe neurological symptoms or severe epigastric/right-upper-quadrant pain with worsening condition
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Failed induction of labour or failure to progress
- Especially if delivery is indicated but induction does not establish effective labour or there is arrest of labour.
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Usual obstetric indications
- Placenta previa or vasa previa
- Transverse lie or other presentation unsuitable for vaginal birth
- Cord prolapse
- Cephalopelvic disproportion / obstructed labour
- Previous classical C-section or another contraindication to labour
- Certain cases of breech presentation, depending on gestation, fetal status, and local expertise.
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Very preterm pregnancy with an unfavourable cervix plus an urgent need for delivery
- This is an individualized decision. A very low chance of timely successful induction, combined with maternal or fetal deterioration, may favor C-section.
ACOG guidance similarly states that the delivery route should be individualized, and that vaginal birth is often achievable;
ACOG guidance on pre-eclampsia notes that eclampsia itself does not require C-section after maternal stabilization.