1. | Women with one previous cesarean delivery with a low transverse incision are candidates for and should be offered a trial of labor. [SORT rating A] |
2. | Patients desiring TOLAC should be counseled that their chance for a successful VBAC is influenced by the following factors: [SORT rating B] |
| Positive factors (increased likelihood of successful VBAC) |
| Maternal age less than 40 years |
| Prior vaginal delivery (particularly prior successful VBAC) |
| Favorable cervical factors |
| Presence of spontaneous labor |
| Nonrecurrent indication that was present for prior cesarean delivery |
| Negative factors (decreased likelihood of successful VBAC) |
| Increased number of prior cesarean deliveries |
| Gestational age greater than 40 weeks |
| Birth weight greater than 4,000 g (8 lb, 13 oz) |
| Induction or augmentation of labor |
3. | Prostaglandins should not be used for cervical ripening or labor induction, because their use is associated with higher rates of uterine rupture and decreased rates of successful vaginal delivery. [SORT rating B] |
4. | TOLAC should not be restricted to maternity care facilities with available surgical teams present throughout labor, because there is no evidence that these additional resources result in improved outcomes.* [SORT rating C] At the same time, it is clinically appropriate that a management plan for uterine rupture and other potential emergencies requiring rapid cesarean delivery should be documented for each woman undergoing TOLAC. [SORT rating C] |
5. | Maternity care professionals need to explore all issues that may affect a woman’s decision (e.g., recovery time, safety). [SORT rating C] No evidence-based recommendation can be made about the best way to present the risks and benefits of TOLAC to patients. |