2.2. Eligibility Criteria
uterocervical infections, hematoma, cephalopelvic disproportion, infection
SCAR, PREGNANCY COMPLICATIONS, INFECTION, PLACENTA PREVIA, HEMATOMA
We included women over 18 years, with previous single lower segment caesarean delivery at 40 weeks with a singleton foetus in vertex presentation, no pregnancy complications, and eligible for TOLAC. Women with interpregnancy interval greater than 18 months, scan estimated foetal weight less than 3.5 kg, nonrecurrent indication for the previous section, the previous scar restricted to lower segment, scar thickness more than 3 mm on ultrasonography, and no clinical evidence of cephalopelvic disproportion were considered eligible for TOLAC. The previous caesarean carried out for placenta previa, transverse lie, preterm and late in the second stage of labour, or clinical evidence of uterocervical infections after the previous caesarean section was considered ineligible for TOLAC as these indications have high clinical suspicion for an extension to upper segment fibres/poor strength due to infection and/or micro hematoma formation.