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.