Once a cesarean always a cesarean? A computer-assisted decision analysis

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Decision Analysis in Healthcare

Background:

• Previous decision models for trial of labor versus repeat cesarean after a prior cesarean delivery identified the desire for future pregnancies as a key factor.
• The current analysis expands upon prior models by incorporating severe perinatal and maternal outcomes, including stillbirth, hypoxic-ischemic encephalopathy, and placental complications.

Purpose of the Study:

• To update and extend a decision analysis model comparing trial of labor with elective repeat cesarean delivery after a previous cesarean.
• To determine the optimal management strategy for women with a prior cesarean, considering a comprehensive range of potential outcomes and varying desires for future pregnancies.

Main Methods:

• A decision tree model was constructed using reported probabilities for various outcomes and estimated patient utilities.
• The model evaluated the strategic choice between trial of labor and elective repeat cesarean delivery after a prior cesarean.
• The preferred strategy was identified as the one yielding the highest expected outcome.

Main Results:

• The decision model favored elective repeat cesarean delivery (0.9947) over trial of labor (0.9917) after a previous cesarean.
• This preference for repeat cesarean delivery remained consistent, irrespective of the probability of desiring an additional pregnancy.

Conclusions:

• Contrary to some previous models, this updated analysis indicates that elective repeat cesarean delivery is the preferred approach for women with a prior cesarean.
• When considering critical outcomes such as live birth, hypoxic-ischemic encephalopathy, stillbirth, neonatal death, abnormal placental implantation, hysterectomy, and maternal death, repeat cesarean delivery is favored over trial of vaginal delivery.