Reply: Why does fetal head rotation occur in spontaneous labor?

We appreciate the interest shown by Drs Ross and Gemert in our recent publication on the ultrasound study of fetal head rotation during spontaneous labor in nulliparous women.1 The combined use of transabdominal and transperineal ultrasound methods opens up a new and more detailed way of studying the rotation of the fetal head, including the possible effects of epidural analgesia on this mechanism. The points specifically raised in the letter considered the effect epidural analgesia may have on the pelvic floor, relaxing the muscles and thereby, reducing the resistance provided by the pelvic floor.

Source: American Journal of Obstetrics and Gynecology - July 9, 2021 Category: OBGYN Authors: Hulda Hjartard óttir, Torbjørn M. Eggebø Tags: Letter to the Editors Source Type: research