Pelvimetry: changing trends and attitudes.

Review of the literature regarding pelvimetry shows conflicting views as to its value. This study shows the decline in the use of pelvimetry in a teaching hospital obstetric unit over two time periods (1993 and 199798) and the change of views of the clinicians working in this unit. The number of pelvimetries performed fell from 56 per 1000 births to 4 per 1000 over this period. Most pelvimetries in 1993 (55.3%) were performed postpartum following caesarean section. However, in 199798, the majority (over 75%) were performed antepartum in breech presentation. The trend towards a more reluctant use of pelvimetry was mirrored by changes in clinicians' views. Recent publications and RCOG guidelines have effected a dramatic change in the use of pelvimetry over the last decade, largely restricting its use to a small selected group of patients.