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The role of forceps rotation in maternal and neonatal injury
G D Hankins1, T Leicht, J Van Hook
1Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston 77555-0587, USA.
Objective:
Our purpose was to assess the impact of forceps rotation on maternal and neonatal injury.
Study Design:
In this retrospective case-controlled study performed at the University of Texas Medical Branch at Galveston all forceps deliveries with a rotation of >/=90 degrees performed between July 1992 and September 1995 were identified (n = 113). For controls 167 forceps deliveries with rotations of
Results:
Forceps rotations of >/=90 degrees accounted for 0.8% of all deliveries. A major fetal injury, defined as a skull fracture, subdural hematoma, brachial plexus or a sixth or seventh cranial nerve injury, occurred in 10.2% of deliveries with rotations of /=90 degrees. The only permanent injury was a brachial plexus palsy that occurred with a forceps rotation of 45 degrees. Rotations of >/=90 degrees were not associated with umbilical arterial acidemia below 7.0 or 7.1 compared with rotations of /=90 degrees were associated with longer maternal hospital stays (P =.009). Neither lacerations of the birth canal, third- or fourth-degree episiotomies, or fall in the maternal hematocrit correlated with the degree of forceps rotation.
Conclusions:
Advanced degrees of forceps rotations do not result in any clinically significant increase in infant or maternal morbidity relative to that encountered with lesser degrees of forceps rotation.