# The effect of oxytocin, sublingual, and intrauterine misoprostol on blood loss in cesarean delivery: A randomized clinical trial

**Authors:** Mahdieh Masoumzadeh, Vahideh Rahmani, Manizheh Sayyah-Melli, Anis Sani

PMC · DOI: 10.1016/j.eurox.2025.100369 · European Journal of Obstetrics & Gynecology and Reproductive Biology: X · 2025-02-03

## TL;DR

This study compared different methods of administering misoprostol and oxytocin during cesarean deliveries to see if they affect blood loss, but found no significant differences between the methods.

## Contribution

The study provides new evidence that different uterotonic agent combinations do not significantly affect blood loss during or after cesarean delivery.

## Key findings

- No significant differences in blood loss during surgery among the three groups.
- Estimated blood loss within 24 hours postpartum was similar across all groups.
- All tested methods showed comparable effectiveness in controlling blood loss.

## Abstract

The efficacy of different uterotonic agents is yet to be determined.

This was a randomized clinical trial on 240 pregnant mothers with a history of cesarean section in three groups: A: sublingual misoprostol and oxytocin, B: intrauterine misoprostol and oxytocin, and C: a higher dose of oxytocin alone. The intrapartum blood loss and the estimated blood loss within 24 h after surgery were compared between the groups.

The baseline characteristics showed no significant differences among the groups. The volume of blood loss during surgery and within 24 h postpartum did not differ significantly among the groups (A: 230.72 ± 97.30, B: 245.60 ± 88.50, C: 229.02 ± 109.78, p = 0.115, and A: 2023.84 ± 480.08, B: 2045.26 ± 598.99, C: 2025.61 ± 538.93, p = 0.819, respectively).

Intrauterine misoprostol plus oxytocin, sublingual misoprostol plus oxytocin and a higher dose of oxytocin did not show any significant difference in the amount of blood loss during surgery and within 24 h post-operation.

## Linked entities

- **Chemicals:** oxytocin (PubChem CID 439302), misoprostol (PubChem CID 5282381)

## Full-text entities

- **Diseases:** blood loss (MESH:D016063)
- **Chemicals:** misoprostol (MESH:D016595), oxytocin (MESH:D010121)

## Full text

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## Figures

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## References

18 references — full list in the complete paper: https://tomesphere.com/paper/PMC11848489/full.md

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Source: https://tomesphere.com/paper/PMC11848489