outcome of spina bifida in south wales over a 10 year period 2004-2013 binocar scientific meeting...
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![Page 1: Outcome of Spina Bifida in South Wales over a 10 year period 2004-2013 BINOCAR Scientific meeting 2014 N.Gupta, P.Leach, D.Tucker and J.Calvert Cardiff](https://reader035.vdocuments.site/reader035/viewer/2022070308/551c03ab5503469e4f8b4d73/html5/thumbnails/1.jpg)
Outcome of Spina Bifida in South Wales over a 10 year period 2004-2013
BINOCAR Scientific meeting 2014
N.Gupta, P.Leach, D.Tucker and J.Calvert
Cardiff and Vale University Health Board
Congenital Anomaly Register and Information Service in Wales
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BackgroundSpina bifida is a developmental congenital
disorder caused by incomplete closure of the embryonic neural tube
The overall prevalence in UK (5.6/10,000 total births)
Rates in Wales higher (up to 7.42/10,000)◦ Possible genetic predisposition
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AimsThe aim of the study was to review
the outcomes of pregnancies and babies in whom Spina Bifida was diagnosed and treated at the University Hospital of Wales (UHW) over a 10 year period
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Methods A retrospective audit of all cases of suspected
Spina Bifida diagnosed and treated at the University Hospital of Wales from 2004-2013
Cases were identified using the CARIS database as well as the neonatal and foetal medicine databases
Cases of anencephaly were excluded as well as those not born in South Wales or referred to University Hospital Wales
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211 cases identified 203 included in analysis
156 (76.8%) resulted in TOP
40 (20%) liveborn
2 (1%) were foetal losses
2 (1%) were still born
Results
200 (98.5%) antenatally Dx 3 (1.5%) postnatal Dx
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Maternal details
Maternal age ranged from 16-43 years
The median age of mothers who continued the pregnancy was 27 years32.5% primiparous
The median age of those who terminated the pregnancy was 27 years 29.4% primiparous
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Maternal Folic acidIncomplete data available on 71 cases
Folic acid was not taken in 17 (13%) of 132 cases
In cases which were liveborn folic acid was not taken in 6 (22%)
In the others folic acid was not taken in 11 (10%) of cases
One case of suspected foetal valproate syndrome
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200 cases suspected antenatally
48 (24%) cases of isolated Spina Bifida
Ventriculomegaly seen in 98 (49%) of cases Additional abnormalities
seen in 54 (27%) of cases • These included talipes, hip
dislocation, cleft palate, limb, cardiac anomalies, renal and gastro-intestinal anomalies
Antenatal Diagnosis
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Chromosomal abnormalities
◦Chromosomal abnormalities were suspected in diagnosed in 12 cases:
7 Trisomy(13/18) confirmed, one suspected
2 confirmed triploidies
One rearrangement of Y chromosome
One case of Saethre Chotzen syndrome (deletion in part of chromosome 7)
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Outcome Of the cases of isolated Spina Bifida,
41(85%) resulted in TOP
Of the cases with Spina Bifida and ventriculomegaly 73 (74%) resulted in TOP
Of the cases with additional abnormalities, 42 (78%) resulted in TOP
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Outcome vs type of anomalies
Isolated Spina Bifida Ventriculomegaly Associated Anomalies0
20
40
60
80
100
120
7
25
12
41
73
42
TOPlive births
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Postnatal diagnosis3 cases were diagnosed post-natally
◦All isolated
◦No ventriculomegaly
◦No additional abnormalities
◦All 3 required surgery
◦One of these was a closed lesion
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Live birthsOf the 43 live births 20(46%) were male and
23(54%) were female
38(88%) of the defects were open, 5(12%) closed
19(44%) had ventriculomegaly at birth
23(53.4%) had additional abnormalities◦ These included talipes, hip dislocation, cleft
palate, limb and cardiac anomalies
Chromosomal anomalies confirmed in 2 cases
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Live births4 of the live born infants died in the
neonatal period. These were related to the severity of the associated hydrocephalus◦One baby died during initial resuscitation ◦3 had withdrawal of intensive care
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Neurosurgery39 (90.7%) of the live births required
closure of the neural tube defect
4(9.3%) did not require surgery
Surgery for ventriculomegaly was performed in 20 (46%) of the babies
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SummaryThe congenital anomaly register provides valuable
information regarding outcome of pregnancies following diagnosis of suspected anomaly
Antenatal diagnosis of Spina Bifida in 98.5%
Overall termination of pregnancy in 77%
No significant difference in termination rate in presence of additional abnormalities
Although folic acid data is incomplete a significant proportion of women did not take folic acid which needs to be addressed
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Acknowledgements
Thank you to CARIS for helping providing the Data for the study