OBJECTIVE: To evaluate whether use of the B-Lynch suture is associated with subsequent adverse pregnancy outcomes. METHODS: This is a cohort study of women who experienced postpartum hemorrhage between January 2000 and June 2010 and had a subsequent pregnancy at a single university hospital. Women who had postpartum hemorrhage and B-Lynch suture were compared with those complicated by postpartum hemorrhage but no B-Lynch suture placement. The primary outcome was a composite adverse outcome related to placentation abnormalities and included placenta previa, placenta accreta, preeclampsia, preterm birth, or a small-for-gestational-age neonate. The study was powered to detect a twofold difference in the frequency of the composite outcome.
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