A Randomized Controlled Study Investigating the Necessity of Routine Cervical Dilatation during Elective Cesarean Section

Abstract

Objective: To investigate if it was necessary to dilate the cervix routinely during elective cesarean section and to determine the effects of this traditional maneuver on maternal morbidity. Methods: A total of 150 patients meeting eligibility criteria were enrolled in this prospective, randomized controlled study. Patients were allocated randomly into cervical dilatation group or non-dilated group. In the cervical dilatation group, the surgeon performed cervical dilatation by inserting a double-gloved index finger into the cervical canal of the patients after extraction of placenta and membranes. Endometrial cavity thickness of the patients at postoperative 24 h, development of postoperative febrile-infectious morbidity and postoperative hemoglobin levels were evaluated and compared between the groups. Results: The two groups were comparable with regard to demographic and clinical properties. Mean postoperative endometrial cavity thickness of the dilated group was significantly less than the non-dilated group (6.87 ± 2.50, 9.51 ± 3.35 respectively, p < 0.0001). The level of hemoglobin reduction was comparable between the groups (p = 0.37). Febrile morbidity was seen in one patient in the dilated group. Endometritis or wound infection was not encountered in either group during the puerperium. Conclusions: Cervical dilatation seems to be an unnecessary intervention during the cesarean section. © 2010 Springer-Verlag.