Effect of pre-operative bicarbonate infusion on maternal and perinatal outcomes among women with obstructed labour in Mbale hospital: A double blind randomized controlled trial

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dc.contributor.authorMusaba, Milton W.
dc.contributor.authorWandabwa, Julius N.
dc.contributor.authorNdeezi, Grace
dc.contributor.authorWeeks, Andrew D.
dc.contributor.authorMukunya, David
dc.contributor.authorWaako, Paul
dc.contributor.authorNankabirwa, Victoria
dc.contributor.authorTulyamuhika Mugabe, Kenneth
dc.contributor.authorSemakula, Daniel
dc.contributor.authorTumwine, James K.
dc.contributor.authorBarageine, Justus K.
dc.date.accessioned2023-08-21T08:28:56Z
dc.date.available2023-08-21T08:28:56Z
dc.date.issued2021
dc.descriptionResearch article
dc.description.abstractIntroduction Oral bicarbonate solution is known to improve both maternal and perinatal outcomes among women with abnormal labour (dystocia). Its effectiveness and safety among women with obstructed labour is not known. Objective To determine the effect and safety of a single-dose preoperative infusion of sodium bicarbonate on maternal and fetal blood lactate and clinical outcomes among women with obstructed labour (OL) in Mbale hospital. Methods We conducted a double blind, randomised controlled trial from July 2018 to September 2019. The participants were women with OL at term (>37 weeks’ gestation), carrying a singleton pregnancy with no other obstetric emergency, medical comorbidity or laboratory derangements. Intervention A total of 477 women with OL were randomized to receive 50ml of 8.4% sodium bicarbonate (238 women) or 50 mL of 0.9% sodium chloride (239 women). In both the intervention and controls arms, each participant was preoperatively given a single dose intravenous bolus. Every participant received 1.5 L of normal saline in one hour as part of standard preoperative care. Outcome measures Our primary outcome was the mean difference in maternal venous blood lactate at one hour between the two arms. The secondary outcomes were umbilical cord blood lactate levels at birth, neonatal sepsis and early neonatal death upto 7 days postnatal, as well as the side effects of sodium bicarbonate, primary postpartum hemorrhage, maternal sepsis and mortality at 14 days postpartum. Results The median maternal venous lactate was 6.4 (IQR 3.3–12.3) in the intervention and 7.5 (IQR 4.0–15.8) in the control group, with a statistically non-significant median difference of 1.2 mmol/L; p-value = 0.087. Vargha and Delaney effect size was 0.46 (95% CI 0.40–0.51) implying very little if any effect at all. Conclusion The 4.2g of preoperative intravenous sodium bicarbonate was safe but made little or no difference on blood lactate levels.
dc.description.sponsorshipUniversity of Liverpool/Liverpool Women’s Hospital, Liverpool, Makerere University College of Health Sciences, Mbale Regional Referral Hospital, Mbale, Busitema University
dc.identifier.citationMusaba MW, Wandabwa JN, Ndeezi G, Weeks AD, Mukunya D, Waako P, et al. (2021). Effect of pre-operative bicarbonate infusion on maternal and perinatal outcomes among women with obstructed labour in Mbale hospital: A double blind randomized controlled trial. PLoS ONE 16(2): e0245989. https://doi.org/10.1371/journal.pone.0245989
dc.identifier.urihttps://doi.org/10.60682/377q-tv79
dc.language.isoen
dc.publisherPLOS One
dc.subjectResearch Subject Categories::MEDICINE::Surgery::Obstetrics and women's diseases::Obstetrics and gynaecology
dc.titleEffect of pre-operative bicarbonate infusion on maternal and perinatal outcomes among women with obstructed labour in Mbale hospital: A double blind randomized controlled trial
dc.typeArticle
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