Final answer:
The success rate of External Cephalic Version (ECV) is around 58-75%. In successful cases, there is a low risk of spontaneous version back to breech presentation. If the ECV fails, the likelihood of spontaneous cephalic version decreases with each attempt.
Step-by-step explanation:
In recent years, External Cephalic Version (ECV) has been used as a technique to try and turn a breech baby into a head-down position, reducing the need for a cesarean section. The success rate of ECV varies depending on several factors such as the position of the baby, the expertise of the healthcare provider, and the gestational age. On average, the success rate of ECV is around 58-75%.
In successful cases, there is a risk of spontaneous version back to breech presentation, but this is relatively low, occurring in less than 10% of cases. If the ECV fails and the baby remains in a breech position, the likelihood of it spontaneously turning into a cephalic (head-down) position decreases, and the possibility of a successful ECV decreases with each attempt.