Classical Cesarean Section Indications and Considerations

Primary Indications

• The prevalence of cesarean scar defects ranges from 24-88% in women with prior cesarean sections, which can complicate subsequent surgical access, according to The Lancet Global Health 1
• The risk of placenta accreta increases dramatically with each prior cesarean: 12.9 per 10,000 after one cesarean, 41.3 per 10,000 after two, and 78.3 per 10,000 after three cesarean sections, as reported by The Lancet Global Health 2
• When placenta accreta is present with placenta previa, the incidence ranges from 11% with one prior cesarean to 67% with five or more prior cesarean deliveries, according to The Lancet Global Health 1

Critical Long-Term Implications

• The overall uterine rupture prevalence in women with any prior cesarean is 22 per 10,000 births (0.22%), increasing to 35 per 10,000 (0.35%) when labor occurs, as stated by Praxis Medical Insights: Practical Summaries of Clinical Guidelines 3

Common Clinical Pitfalls

• Attempting forced placental removal in cases of placenta accreta during classical cesarean results in profuse hemorrhage and should be avoided; the placenta should be left in situ, according to Praxis Medical Insights: Practical Summaries of Clinical Guidelines 4