Acta obstetricia et gynecologica Scandinavica
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Acta Obstet Gynecol Scand · Mar 2016
Outcome of attempted vaginal delivery after a previous vacuum extraction: a population-based study.
Few studies have investigated long-term effects of a first vaginal instrumental delivery on subsequent mode of delivery. We investigated risks of repeat vacuum extraction and risk factors associated with a repeat vacuum extraction delivery. ⋯ Nine of ten women who attempted a vaginal birth after a primary vacuum extraction succeeded in having a spontaneous vaginal delivery at second delivery. Compared with women with a primary spontaneous vaginal delivery, women with a primary vacuum extraction were at increased risk of repeat vacuum extraction and emergency cesarean section in subsequent delivery although their risk was not as high as that of women with a primary emergency cesarean section.