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Objective:To evaluate clinical reliability compared to intrapartum ultrasound as a tool to diagnose occiput posterior position and to investigate the proportion of rotations occurring during labour. Patients and methods:350 women in labor with a singleton fetus in a vertex position were prospectively studied using ultrasound and obstetrical examination. Outcome of labor was also monitored. Results:Reliability of clinical examination is 85,7%,initial occiput posterior position represented 40,2%and most rotated in an anterior position (84,8%) while only 0,6%of initial anterior positions delivered in occiput posterior position. Logistic regression did not allow to find significant predictor of occiput posterior position rotation. Discussion and conclusion:Clinical examination is relatively reliable for posterior position diagnosis and in most cases,initially occipitoposterior positions rotate anteriorly.
Objective: To evaluate clinical reliability compared to intrapartum ultrasound as a tool to diagnose occiput posterior position and to investigate the proportion of rotations occurring during labor. Outcome of labor was also monitored. Results: Reliability of clinical examination is 85,7%, initial occiput posterior position represented 40,2% and most rotated in an anterior position (84,8%) while only 0,6 Discussion and conclusion: Clinical examination is relatively reliable for posterior position diagnosis and in most cases, initially occipitoposterior positions rotate anteriorly.