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Comparison of intravenous paracetamol infusion versus intramuscular tramadol as labor analgesia: a randomized control trial

  • Maternal-Fetal Medicine
  • Published:
Archives of Gynecology and Obstetrics Aims and scope Submit manuscript

Abstract

Purpose

Labor pain is one of the most agonizing pains experienced by all delivered women. Many pharmacological agents used in labor analgesia require intense monitoring facilities, which are not available in routine obstetric practice in low-resource settings. This study aimed to compare the efficacy of intravenous (IV) paracetamol and intramuscular (IM) tramadol on labor pain relief, labor progression, and maternal and neonatal outcomes.

Methods

This randomized drug trial was carried out on 110 women divided into two groups. Group A women received 1000 mg of IV paracetamol, and Group B women received 100 mg of IM tramadol during the active phase of labor. Pain intensity was assessed by the Visual Analogue Scale (VAS) at intervals till 120 min of delivery. The maternal and neonatal outcomes were recorded.

Results

There was a statistically significant fall in pain score till 180 min of drug administration in the paracetamol group and 120 min in the tramadol group. At 180 min and 240 min, paracetamol is more effective than tramadol (p value 0.004 at 180 min and 0.0119 at 240 min). There were significantly low pain score levels at 60 min of delivery in the paracetamol group (p value—0.004). Nausea and vomiting were significantly higher in the tramadol group (p value 0.000013).

Conclusion

Compared to IM tramadol, IV paracetamol has a longer duration of action and fewer maternal side effects, making it suitable for parenteral analgesia in labor. Due to a better safety profile, there is no need for intense maternal and fetal monitoring with IV paracetamol.

Trial registration

Clinical Trials Registry—India (CTRI registration number—CTRI /2019/05/019244).

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Acknowledgements

We would like to thank all the participants of the trial. We would also like to extend our thanks to statisticians from the community medicine department, who performed computer-generated random sequence allocation, and maternity assistants, staff nurses, and registrars on duty in the labor room who helped in collecting study outcomes.

Funding

The authors have not disclosed any funding.

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Authors and Affiliations

Authors

Contributions

MN: project development, recruitment of participants, data collection, and manuscript writing. GKP: project development, manuscript writing, and manuscript editing.

Corresponding author

Correspondence to G. K. Poomalar.

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Conflict of interest

The authors have no relevant financial or non-financial interests to disclose.

Ethical approval and clinical trials registry

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by our Institute Ethics Committee (SMVMCH-ECO/AL/135/2018) and registered with Clinical Trials Registry—India (CTRI registration number— CTRI /2019/05/019244).

Publication consent

The authors affirm that publication consent has been received from all the participants.

Data citation

G K Poomalar (2022), “Comparison of intravenous paracetamol infusion versus intramuscular tramadol as labor analgesia—a randomised control trial”, Mendeley Data, V1, https://doi.org/10.17632/2gngzpwfbm.1.

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Monisha, N., Poomalar, G.K. Comparison of intravenous paracetamol infusion versus intramuscular tramadol as labor analgesia: a randomized control trial. Arch Gynecol Obstet 307, 755–762 (2023). https://doi.org/10.1007/s00404-022-06585-2

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  • DOI: https://doi.org/10.1007/s00404-022-06585-2

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