BACKGROUND:

The anomalies of the position are the cause of failure in the task of labor. The ultrasound during labor is a complementary tool to confirm the clinical findings in the vaginal examination and define the type of position abnormality.

OBJECTIVE:

to report on the use of ultrasound during abnormal labor, such as the detection of the position abnormality.

CLINICAL CASES:

Case 1: 24-year-old patient with 41 weeks of gestation (SDG) and premature rupture of membranes, entered the area of tochosurgery to complete the dilation and cervical neck, nevertheless worked and delivery for 120 minutes . A suprapubic transabdominal ultrasound was performed, finding a sign of strabismus, the resolution was by caesarean section and an occipito-posterior position anomaly was corroborated. Case 2: 29-year-old patient with 39 SDG and gestational hypertension, it is deduced from the labor, the cervical neck was dilated and for 120 minutes, there was no decrease of the cephalic pole, a variety of occipito place -transverse, suprapubic transabdominal ultrasound was performed, finding a sign of strabismus. The pregnancy ended by caesarean section and the evolution for the mother and her child was satisfactory.

CONCLUSIONS:

Ultrasound is an effective study for the detection of position abnormalities, since it reduces maternal-fetal complications associated with extended labor. However, reporting the experience of only two cases could not be valid to support this assertion.