Villitis of unknown aetiology: correlation of recurrence with clinical outcome.
AffiliationDepartment of Pathology and Laboratory Medicine, National Maternity Hospital, Dublin, Ireland.
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CitationVillitis of unknown aetiology: correlation of recurrence with clinical outcome. 2010, 30 (5):476-9 J Obstet Gynaecol
JournalJournal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology
AbstractVillitis of unknown aetiology (VUA) is associated with adverse pregnancy outcome. Consequently, an ability to predict recurrence could be clinically relevant. We examined placentas where villitis was diagnosed in a previous pregnancy to establish the risk of recurrence and outcome. A total of 304 cases of VUA were diagnosed in our laboratory over a 4-year period. Subsequently, 19 of this cohort had a second placenta examined histologically. Recurrence and clinical outcome were recorded. Villitis recurred in 7 of 19 cases (37%). There was a high level of adverse pregnancy outcome in this cohort overall, characterised by small for gestational age infants and stillbirth, particularly in cases with high-grade villitis. We identified recurrent villitis more frequently than previously reported. Our findings confirm an association between high-grade villitis and poor outcome. Adequately powered prospective studies are required to determine if enhanced surveillance of subsequent pregnancies is indicated following a diagnosis of villitis.
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