Management of third stage of labor with misoprostol: A comparison of three routes of administration

Preoperative versus postoperative misoprostol use for prevention of blood loss during caesarean section in pregnant women at term: a multi-centre randomised controlled trial

OBJECTIVE

Caesarean section is associated with higher blood loss than vaginal delivery. This study was performed to compare the safety and efficacy of preoperative versus postoperative rectal and sublingual misoprostol use for prevention of blood loss in women undergoing elective caesarean delivery.

METHODS

Eligible patients in Southeast Nigeria were randomly classified into those that received 600 µg of preoperative rectal, postoperative rectal, preoperative sublingual, and postoperative sublingual misoprostol. All patients received 10 units of intravenous oxytocin immediately after delivery. Data were analysed with SPSS Version 23.

RESULTS

Preoperative sublingual misoprostol use caused the highest postoperative packed cell volume, least change in the packed cell volume, and lowest intraoperative blood loss. Preoperative sublingual and rectal misoprostol use was associated with better haematological indices and maternal outcomes than postoperative use by these routes. However, preoperative sublingual and rectal use caused more maternal side effects than postoperative use by these routes.

CONCLUSION

Preoperative sublingual misoprostol was associated with the most favourable haematological indices. Although preoperative sublingual and rectal misoprostol use caused more maternal side effects, these routes were associated with better haematological indices and maternal outcomes than postoperative sublingual and rectal misoprostol use.

A Comparative Study of Sublingual Misoprostol Versus Intramuscular Oxytocin in the Active Management of Third Stage of Labor

Objective Misoprostol has attracted low-income low-resource countries for the active management of the third stage of labor. The objective of this study was to compare the efficacy of sublingual misoprostol and intramuscular oxytocin in the active management of the third stage of labor. Study design This was a prospective randomized controlled trial in which a total of 407 healthy pregnant women having singleton pregnancy, cephalic presentation, and normal vaginal delivery were divided into two groups. In the first group (n=203), women received 600 µg misoprostol tablet sublingually, and in the second group (n=204), women received 10 IU of intramuscular oxytocin, within 1 minute of the delivery of the baby during the third stage of labor. Three patients from the first group and four patients from the second group were excluded from the analysis due to traumatic postpartum hemorrhage (PPH). The primary outcome was an incidence of PPH. Secondary outcomes were the duration of the third stage of labor, amount of blood loss, fall in hemoglobin concentration after 48 hours of delivery, need for additional uterotonics, and side effects of the drugs. Data were compared using the chi-square and independent samples t-test. Results The incidence of PPH was 6.5% in the misoprostol group as compared to 2% in the oxytocin group (p=0.026). The misoprostol group also had significantly higher blood loss (293.75±125.8 mL) and a greater fall in hemoglobin level (0.58±0.25 g/dL) as compared to that in the oxytocin group (226.13±98.44 mL and 0.45±0.20 g/dL) (p<0.001). The mean duration of the third stage of labor was significantly higher in the misoprostol group (5.31±2.1 min) as compared to that in the oxytocin group (3.65±1.75 min) (p<0.001). The additional need for uterotonics was recorded in 15% of the study participants in the misoprostol group as compared to 8% in the oxytocin group (p=0.028). The incidence of side effects such as shivering and fever was significantly higher in the misoprostol group as compared to the oxytocin group. No significant difference between the two groups was observed concerning the incidence of nausea, vomiting, diarrhea, and headache. Conclusion Intramuscular oxytocin is a safe and useful alternative to sublingual misoprostol in facilitating the third stage of labor with minimal blood loss, fewer incidences of hemorrhage, and fewer adverse effects.

Care technologies to prevent and control hemorrhage in the third stage of labor: a systematic review

OBJECTIVE

to identify evidence concerning the contribution of health technologies used to prevent and control hemorrhaging in the third stage of labor.

METHOD

systematic review with database searches. First, two researchers independently selected the papers and, at a second point in time, held a reconciliation meeting. The Kappa coefficient was used to assess agreement, while the Grading of Recommendations, Assessment, Development and Evaluation was adopted to assess risk of bias and classify level of evidence.

RESULTS

in this review, 42 papers were included, 34 of which addressed product technologies, most referred to pharmacological products, while two papers addressed the use of blood transparent plastic bags collector and the contribution of birth spacing and prenatal care. The eight papers addressing process technologies included the active management of the third stage of labor, controlled cord traction, uterine massage, and educational interventions.

CONCLUSION

product and process technologies presented high and moderate evidence confirmed in 61.90% of the papers. The levels of evidence confirm the contribution of technologies to prevent and control hemorrhaging. Clinical nurses should provide scientific-based care and develop protocols addressing nursing care actions.