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Partial urorectal septum malformation (pURSM) sequence in England and Wales: Prevalence, additional anomalies, and pregnancy outcome

Lookup NU author(s): Peter Tennant, Dr Svetlana Glinyanaya, Professor Judith Rankin

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Abstract

Background: Partial urorectal septum malformation (pURSM) sequence (or ‘persistent cloaca’) is a rare congenital anomaly characterised by a confluence of the urethral, anal, and genital openings. This study describes the prevalence, additional anomalies, and pregnancy outcomes of pURSM sequence in England and Wales. Methods: All cases of pURSM sequence notified to seven congenital anomaly registers in England and Wales during 1985–2010, whether delivered as live births, spontaneous fetal deaths (≥20 weeks gestation), or elective terminations of pregnancy for fetal anomaly (any gestation), formed this population-based case series. Risks of spontaneous fetal and infant death were examined by the Kaplan-Meier method. Differences in prevalence over time, and between regions, were examined by multilevel Poisson regression. Results: 117 cases were recorded among 4,251,241 total births. 58 (50%) were delivered as live births, 6 (5%) as spontaneous fetal deaths, and 53 (45%) as elective terminations. The total prevalence was 2.8 (95% CI: 2.3–3.4) per 100,000 total births, increasing significantly over time (p = 0.002) and differing significantly between regions (p = 0.005). 77 cases (66%) had at least one additional major congenital anomaly outside the perineum, including 67 (57%) with renal, 29 (25%) with musculoskeletal, 26 (23%) with digestive system, and 24 (21%) with cardiovascular anomalies. The risks of spontaneous fetal and infant death were estimated as 8.9% (95% CI: 4.1–18.8) and 26.3% (95% CI: 15.1–43.4) respectively. Conclusions: This is the largest study of the epidemiology of pURSM sequence. This information should be valuable for families and health professionals whenever a case of pURSM sequence is diagnosed.


Publication metadata

Author(s): Tennant PWG, Glinianaia SV, Wellesley D, Rankin J

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 16th Annual Conference of the British Maternal and Fetal Medicine Society

Year of Conference: 2013

Pages: A13

ISSN: 1359-2998

Publisher: BMJ Group

URL: http://dx.doi.org/10.1136/archdischild-2013-303966.044

DOI: 10.1136/archdischild-2013-303966.044

Library holdings: Search Newcastle University Library for this item

Series Title: Archives of Disease in Childhood Fetal & Neonatal Edition

ISBN: 14682052


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