29th April 2024

A 30-year-old woman, gravida 2, para 1, at 39 weeks’ gestation, is in active labour for 12 hours.

A 30-year-old woman, gravida 2, para 1, at 39 weeks’ gestation, is in active labour for 12 hours. Her contractions are regular but weak, occurring every 7 minutes. The foetal heart rate is normal. She had a normal vaginal delivery previously. On examination, her cervix is dilated to 4 cm and has not progressed in the last 3 hours. The foetus is in a cephalic presentation.

Which is the most likely diagnosis underlying the clinical presentation?