PREDICTION OF LABOR PROGRESS BY INTRAPARTUM SONOGRAPHY USING FETAL HEAD SYMPHYSIS DISTANCE

Document Type : Preliminary preprint short reports of original research

Authors

1 Department of Obstetrics and Gynecology, Faculty of Medicine, Alexandria University

2 Department of Obstetrics and Gynaecology , Faculty of Medicine, University of Alexandria, Egypt

3 Department of Obstetrics and Gynecology, Faculty of Medicine, Alexandria University, Egypt.

Abstract

Normal birth process is "spontaneous in onset, between 37 and 42 gestational weeks, with low risk at the start of labor and remaining so throughout labor and delivery. Traditionally, the assessing and managing a patient in labor is based upon clinical findings. Diagnosing a labor arrest and making decisions regarding the timing or type of intervention depends mainly on digitalized dilatation evaluation along with both station and position of the fetal head, nevertheless clinical examinations for head station and position is subjective and imprecise, particularly if there was caput succedaneum. Many research investigations have shown that when it comes to the diagnosis of fetal head position and station and the prediction of labor arrest, US examination is more precise and reliable than clinical examination. Ultrasound (US) can be done by means of a trans-abdominal approach, principally for determining the position of head and spine. Also, it can be employed for a trans-perineal approach, to evaluate head station. Many parameters could be measured by intrapartum sonography to assess labor progress such as: The angle of progression, Head-perineum distance (HPD), Midline Angle (MLA), Distance of head progression , Fetal head-symphysis distance.

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