- Design
- Single-centre, double-blind randomised controlled trial
- Population
- 160 primiparous women with low-risk vaginal deliveries, Turkey
- Primary outcome
- Incidence of postpartum haemorrhage
- Effect
- Lower with pre-placental carbetocin (p=0.015); manual removal higher (p=0.017)
This double-blind trial, published in June, randomised 160 primiparous women with uncomplicated vaginal deliveries at one Istanbul hospital to 100 µg carbetocin either before or after delivery of the placenta.
Postpartum haemorrhage was less common when carbetocin was given before the placenta (p=0.015), with a smaller haemoglobin drop and less need for additional uterotonics (both p<0.001). But manual removal of the placenta, and the antibiotics that follow it, were more frequent in the before group (p=0.017). Other maternal adverse events did not differ.
The trade-off is real: less bleeding against more retained placentas needing intervention. The authors suggest earlier dosing where haemorrhage risk is high. A single small trial is not enough to change a unit protocol.
- Carbetocin before placental delivery reduced bleeding and extra uterotonic use in this trial.
- It also increased manual placental removal and the antibiotic use that goes with it.
- Weigh earlier dosing mainly for women at higher risk of haemorrhage.
- Keep current unit timing until larger trials confirm the balance.
Why it matters
Shows that earlier uterotonic timing buys less bleeding at the price of more retained placentas.
Don't overread it
One centre, 160 low-risk primiparous women and no effect sizes reported — this is hypothesis-generating.
The statistics, in plain English
The abstract reports p-values but not the size of the differences, so how large the haemorrhage reduction was cannot be judged from it.
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