Markkilby.co.uk
Prof. M.D. Kilby; Clinical Lead in Fetal Medicine
1. Introduction
The Fetal Medicine Centre at the Birmingham Women's Foundation Trust offers specialist care for the ‘unborn baby' to pregnant women from South Birmingham, the
wider West Midlands ‘Region' and a supra-regional service to many areas of the United Kingdom (UK).
The successful delivery of this service to patients both in South Birmingham and from other Primary Care Trusts within the West Midlands and indeed nationally, is a credit to the hard work of our multidisciplinary team and its interaction with affiliated
teams in specialties such as neonatal paediatrics and the paediatric subspecialties of surgery, cardiology and genetics (provided by our own Foundation Trust and our sister Foundation Trust at the Birmingham Children's Hospital).
In addition, we continue to work closely with the West Midlands Newborn Network and the Regional Specialist Services Agency to deliver a ‘seamless' service. In September 2006, the Birmingham Women's Hospital was designated the Perinatal
Centre for the West Midlands, commissioned by the Regional Specialist Services Team.
This comprises the perinatal centre/neonatal intensive care service but also includes other specialist services such as those provided within the fields of fetal medicine, perinatal pathology and genetics. We work closely with our neonatal and other specialist paediatric colleagues. The Fetal Medicine Centre is thus commissioned by
West Midlands Regional Specialist Commissioning Group. This year we have worked to specific CQUINs approved by the West Midlands Regional Commissioning Service and we will work towards full implementation of these by the end of 2013.
Simultaneously, the National CRG for Fetal Medicine (MDK is the vice-chairman) is working towards the recognition and implementation by NHS England by 2014.
Although NHS England are managing ‘fetal medicine' as a national specialist service, presently (2014/2015) funding is within the national maternity services tariff. This is presently being discussed further at a regional and national level.
As well as the clinical component to the Fetal Medicine Centre, there is also an academic component with the designated Professor of Fetal Medicine leading basic science and translational research in this specialty. There are a number of NIHR
portfolio studies focusing on fetal medicine within our institution and makes up one
of the best known international centres.
2. Midwifery Report Veronica Donovan
The midwives continue to support the fetal medicine staff on detailed scan lists offering support to women with a suspected or diagnosed fetal abnormality, those
undergoing diagnostic procedures or treatment and couples who experience pregnancy loss.
The midwives participate in audit of all routine procedures and referrals for other
services such as MRI imaging and antenatal paediatric surgical review. Further audit for Fetal Medicine CQUIN has been successfully completed by fetal medicine midwife and two retrospective audits around documentation for termination of pregnancy in readiness for inspection by a representative from the
Department of Health.
The fetal medicine midwifery/sonographer team continue to lead and support:
Amniocentesis clinic and clinical teaching
Sonographer led fetal ‘screening' echo cardiology service
NT scans in multiple pregnancy
Detailed rhesus scan clinic (i.e. serial MCA PSV)
The third Annual Fetal Echo Cardiology Conference is scheduled to take place in September this year. Once again the midwives will participate in this with the
provision of hands on training, interactive sessions and lectures. In collaboration with a private company we have implemented Non Invasive Prenatal
Testing (Details in the activity report).
3. Patient and Public Involvement
The centre produces patient information leaflets for specific conditions to complement the specific information given to patients in a formal letter at consultation. These leaflets have been produced in collaboration with the West
Midlands Neonatal Networks and will be cascaded for use throughout this geographical area. Patient representation has been utilized in the development of patient information leaflets.
4. Summary of Clinical Governance
4.1 Audit
This report is the cornerstone of our audits providing metrics on:
1. Miscarriage rates for amniocentesis (<1.5% for miscarriage at 14 days and
2. Miscarriage rates for CVS (<2.5% for miscarriage at 14 days and <24 weeks). 3. Outcomes of pregnancies treated by in-utero transfusion and monochorionic
twins complicated by TTTS and treated by fetoscopic laser ablation.
These outcomes are measured again international and national (RCOG) standards. In
authors Alfirevic, Walkinshaw and Kilby), the pregnancy loss rates for amniocentesis and chorionic villous sampling are less than 1% and 2% respectively. The ‘threshold' in the national document for concern is
5%. In addition, we have been instrumental in defining outcomes for pregnancy
loss associated with such procedures (Tonks A, Wyldes M, Larkin SA, Kilby MD. Arch Dis Child Fetal Neonatal Ed. 2009; 94: Fa4) and linking them to national datasets
In addition this year there are a number of audits within the national requirements for CNST Level III (relating to liaison with neonatal care providers) and also our set
CQUINS (see below): The aim of the 2013-14 CQUIN is to implement as per the national dashboard for quality indicators for fetal medicine that all suspected serious fetal anomalies are
seen in 3 working days.
In quarter 1 we defined what constitutes a serious fetal anomaly (see below)
Quarter 1 Definition of a serious anomaly A serious fetal anomaly is one that is life threatening to the fetus where intervention with direct or indirect fetal therapy may prevent fetal death or damage. The
following list of anomalies is consistent with this definition;
Monochorionic twins with twin to twin transfusion syndrome Single twin demise in a monochorionic twin set Hydrops fetalis Fetus with a high suspicion of fetal anaemia Fetal cardiac arrhythmias Severe intrauterine growth restriction <32 weeks
All other fetal anomalies to be seen in 7 working days.
The requirement for was to audit referrals made to the Fetal Medicine Centre for a period of 3 months against the quality indicators that require compliance with the above timescales of 90% or better.
For the purposes of the audit we excluded routine screening echos, routine amniocentesis/CVS and detailed screening scans for a previous fetal anomaly.
Result of Audit
The figures from the audit of 3 months referral data show that the Fetal Medicine
Centre was 95% compliant (overall) within the definitions described in quarter one.
Conclusion
The result of the audit has determined a high level (95%) of compliance against the
quality indicators for fetal medicine as defined by the dashboard (National Fetal Medicine Commissioning Group).
It is our intention to implement the 3 and 7 day rules respectively as defined in the requirements for Quarter 3 of the Fetal Medicine CQUIN. We will continue to audit
our compliance during this period and will present the findings in a report to the commissioners at the end of Quarter 4.
4.2 Training
We provide training opportunities in Royal College of Obstetricians & Gynaecologists
(RCOG) recognized training schemes for subspecialty training and ATSM places. As well as our two subspecialty trainees from the West Midlands (UK), we have international fellows/trainees from Ireland, China and most recently Argentina.
Subspecialty Trainees (2013/2014)
Dr Katie Morris – RCOG Subspecialty Trainee & NIHR Lecturer (to complete in
Dr Caroline Fox – RCOG Subspecialty Trainee (successful mid-term review in May
2014) In addition we have Dr Amal Ayed (from Kuwait) visiting us as a two year clinical research fellow. She has two clinical sessions by which to complete her Fetal
Medicine ATSM. In September we have a clinical fellow (Dr Balagi), who is focusing her research on the use of first trimester biochemical markers in screening for SGA and a new international fellow, Dr Joel Baron (from Israel for two years). We also
have our ongoing collaboration to train SPRs in Subspecialty training for MFM from Hong Kong. The next trainee is due in March 2015.
4.3 Incident Reporting/Serious Untoward Incident
The Fetal Medicine Centre follows the Trust policy on the reporting of incidents and
Serious Untoward Incidents (SUIs) through the Directorate and Trust risk management structure.
5. Human Resources
The service is provided on a sessional basis by a team of NHS consultants and
University staff and is supported by a dedicated midwifery and administrative team and works closely with the Birmingham Women's Hospital obstetric staff. The team works within the Maternity Services Directorate and is supported by the Regional
Specialized Services Agency.
6. Business Summary
In 2013-2014 Fetal Medicine continued to be regionally commissioned through a block contract by West Midlands Specialist Commissioning Group and the annual report has been submitted to this group in September 2014. This report has
outlined there are significant uncertainties in national funding of these commissioned services.
6.1 Service Developments 2013-2014
Service developments throughout the year have included: Fetal Medicine working as a reference centre for Siemens Ultrasound through the planning of collaborative educational courses, training and trialing of new technology.
6.2 Research and Development 2013-2014
There are a number of basic science projects and NIHR recognized portfolio studies that encompass ‘Fetal Medicine' activity within the Foundation Trust. This is an important part of the Centre's working and within the NIHR ethos both directly and
indirectly improves patient care. We are one of the most research active Fetal Medicine Centres in Europe.
a) The PLUTO study (Funded by the HTA and PI M Kilby). Assessment of
percutaneous vesicoamniotic shunting in fetuses with congenital bladder neck obstruction. Completed in December 2011 and published in August 2013.
b) Birmingham BAC Microarray study (funded by SPARKS and PI M
Kilby). Assessment of a focused and high-resolution microarray platform
and whole exome sequencing in diagnosis of chromosomal (and gene)
anomalies in babies with structural abnormalities. Completed and
published May 2013. This is continuing as the EACH study (funded by
the MRC EME). Other publications, four further in all published in 2014.
c) RCT to assess timing of transfusions in babies with
alloimmunisation (Funded by MRC in Australia and PIs S Pretlove & M
Kilby). Complete September 2013 – analysis on-going.
d) SOLOMON trial (EU funding and PIs S Pretlove & M Kilby). RCT to
assess selective versus non-selective laser ablation in fetoscopic laser ablation in the treatment of TTTS (complete September 2012). Publication in The Lancet March 2014.
e) TABLET study (MRC/HTA EME funding and PIs A Coomarasamy & M
Kilby). In collaboration with EPAU to study thyroid autoantibody status and thyroid hormone replacement in women who have had miscarriage (pregnancy loss before 24 weeks), stillbirth and preterm labour. On-going.
f) The Meridian study: comparing diagnostic accuracy of prenatal
ultrasound and magnetic resonance imaging for fetal brain abnormalities (CI M Kilby). On-going. There is also a range of laboratory based basic science projects performed in the Institute of Biomedical Research at the University of Birmingham, using patients from the centre and funded by grants to Professor Kilby.
g) The PAGE study: evaluating the role of whole and exome sequencing in
babies with congenital malformation was funded by the Welcome Trust HICF scheme for £4.1 million. This is a collaborative study with GOSH and the Sanger Institute, Cambridge. Professor Kilby is a co-applicant and the PI for the West Midlands. To start October 2014.
h) STOPPIT2. RCT of insertion of Arabin pessary in twin pregnancy with
maternal cervix <2.5 cm. HTA funded. July 2014. Local PI Mark Kilby. To start January 2015. With University of Edinburgh.
i) STRIDER study: study of the use of Sildenafil in severe early-onset
IUGR. MRC/EME study. Local PI M Kilby. To start February 2015. With University of Liverpool.
7. Activity Report
The West Midlands Fetal Medicine Centre operates as the regional referral centre for
the West Midlands and also treats an increasing number of patients form outside the West Midlands area (mainly for Fetal Cardiology opinions and most significantly for the management of twin to twin transfusion syndrome). West Midlands patients are
funded under a block contract with the Specialist Commissioning Group and further income is received from out of area patients in line with a set tariff.
A total 7957 examinations and procedures were undertaken in the Fetal Medicine
Centre in 2013-2014, which is an increase on the previous 2 years. The majority of the activity (93%) was from within the West Midlands and funded through the block contract.
Table 1 below shows the number of examinations performed over the last three financial years.
2011-2012 2012-2013 2013-2014
A full breakdown of scans/procedures performed in the Fetal Medicine Centre within
2013-2014 is shown in Appendix 2.
Appendix 3 shows Fetal Medicine examinations broken down by PCT (in which the
referring patients lives). Fetal Medicine is a Consultant lead service; Figure 1, Demonstrates the expertise given to patients by individual consultants, associate specialists, specialist sonographer's and midwives performing amniocentesis (excluding pre pregnancy
clinics). The clinical care delivered by subspecialty trainees is supervised, usually by consultants.
Figure 1 Total workload by Operator. 2013-2014
The Fetal Medicine Service also covers the pre-pregnancy counseling / pregnancy
loss clinics (PPCC). This also involves a proportion of patients seen for consultations prior to a pregnancy who have serious medical disorders. In 2013-2014 there were 1109 attendances to the PPCC department (outpatient appointments) which was made up of new and follow up patients.
In collaboration with a private company, West Midlands Fetal Medicine Centre offer a private Non-Invasive Prenatal Testing Service. This was implemented in October
2013. In the period 01st October 2013 to 31st March 2014 we have undertaken 28
NIPT's.
8. Detailed Scans:
Miss Tara Selman
3812 detailed scans were performed on 2057 patients by the Fetal Medicine Consultants, SSTS, Sonographers and Midwives. There were 106 Rhesus scans, 4
undertaken due to raised AFP on Serum screening and 176 detailed 1st Trimester scans. This is shown in comparison with the two previous years in Table 2.
2011-2012 2012-2013 2013-2014
Trimester Raised AFP
Table 2 Fetal Medicine Detailed ultrasound scans 2011-2014.
Figure 2 Detailed Scans by Operator 2013-2014.
Appendix 4 details all the abnormalities detected at the centre in 2013-2014.
9. Perinatal / Paediatric Cardiology: Dr Paul Miller, Dr Tarak Desai, Dr Anna
Seale, Dr Sam Pretlove
The fetal echocardiography service at the WMFMC is provided by a team of three
paediatric cardiologists (from Birmingham Children's Hospital BCH), two fetal medicine consultants and four specialist sonographer / midwife sonographers. There is also a specialist cardiac nurse based at BCH. In 2013 a new paediatric cardiologist was appointed, Dr Anna Seale.
The service is for women that have been identified as having a fetus with suspected congenital heart disease (CHD). In addition the service assesses women who are at
increased risk of having a baby with CHD with scans being performed at different times during the pregnancy depending on the presenting history.
Birmingham Women's Hospital runs a unique system in the UK in that highly trained
specialist sonographer / midwife sonographers screen ladies whose fetus is considered to be at relatively high risk of CHD. This includes foetuses with an increased nuchal translucency, family history of CHD, maternal and paternal CHD,
maternal diabetes and maternal epilepsy. Clinical governance continues to be
maintained through regular random reviewing of approximately 10% of screening echoes. A recent audit of screening echoes showed that this system is extremely
effective. The paediatric cardiologists see patients where there is a suspicion of a fetal cardiac abnormality.
There has been a 6% increase in the number of fetal echoes undertaken in the last
year and a 30% increase since 2010. Due to changes in national screening policies such as outflow tract screening, which has been widely taken up in the Midlands since 2011, there has been an increase in the number of referrals. As a consequence
pregnant women and their families are given better and more appropriate information helping them in making difficult decisions whether to continue or interrupt the pregnancy. In addition, it allows for optimal post natal management.
2011-2012 2012-2013 2013-2014
Table 3 Fetal Echocardiography including First Trimester Cardiac Scans activity
2011-2014 by referral area.
Figure 3 Fetal Cardiac Scans by Operator 2013-2014
10. Chorionic Villus Sampling (CVS)
There were 243 referrals for CVS in 2013-2014. Of these 19 were not performed due
to 10 women declined, 7 non-viable pregnancies, 2 women opted for Amniocentesis.
207 were performed in the first trimester and 17 after 14 weeks gestation.
Figure 4 CVS by Operator 2013-2014 (n=224)
10.1 First trimester CVS
The Table below shows the indications for CVS for the past 3 years.
Clinical genetics
Previous Chromosome Anomaly
Previous or Current Fetal Abnormality
Increased Down's risk 1st trimester:
Non-invasive prenatal testing (NIPT)
Cystic Hygroma / Increased Nuchal
Translucency Other:
Total CVS Performed
Table 4 BWH Indications for CVS 2011-2014
(*incl 2 twin pregnancies **incl 1 quadruplet pregnancy $ Two patients total two samples each due to small
sample first attempt no villi)
Increased Nuchal NT
Increased NT n=5
Exomphalos and increased NT n=1
Exomphalos and ? cardiac defect n=2
Skin oedema and abnormal brain n=1
Hydrops fetalis n=1
Increased NT n=11
Increased Down's risk first trimester n=8
Increased risk NIPT n=1
Translocation Monosomy X
Increased Down's risk first trimester n=2
Increased NT/cystic hygroma n=4
Total Chromosome Abnormality detected
Pregnancy
Loss < 24
weeks n=3
Table 5 Abnormalities detected on first trimester CVS – non Clinical Genetics
patients. (LB live birth, TOP termination of pregnancy,NT nuchal translucency, NIPT non-invasive prenatal
testing)
Referral indication
Abnormality at birth or on
Parental balanced
Balanced Translocation
Parental balanced
Unbalanced Translocation
translocation Parent carrier
Glanzmann Thrombasthenia
Beta Thalassemia
Lesch Nyhan Syndrome
Previous baby fragile X
Mutation consistent with
Tuberous Sclerosis
Paternal balanced
translocation Parent carrier
Pericentric inversion of one
Total Abnormalities detected
Unknown =1
Table 6 Abnormalities detected at first trimester CVS – Clinical Genetics patients. (LB
live birth, TOP termination of pregnancy, unknown patients not yet delivered)
There were 69 CVS performed for Cystic Hygroma / increased NT; of those 29
(42%) had chromosome abnormalities (Trisomy 21 n=12, Trisomy 13 n=3, Trisomy
18 n=6, Triploidy n=1, Monosomy X n=5, Mosaic n=2). Of these pregnancies; 25
out of the 29 (86%) parents opted for termination of pregnancy, in the remainder there were 2 pregnancy loss <24 weeks (1 within 14 days of procedure T18, 1 >14 days from procedure Monosomy X) and 2 live births.
The Table below shows the outcome data for first trimester CVS for the past two years.
Pregnancy Outcome after
Percentage
TOP for chromosome or
genetics abnormality TOP for abnormality – normal
chromosomes Miscarriage within 14 days of
T18 n=1, Monosomy X n=
procedure (pregnancy <24
1, Normal Karyotype n=2
weeks) Pregnancy loss < 24 weeks but Normal Karyotype/No
> 14 days after procedure
abnormality n=1, Normal Karyotype / Hydrops n=1,
SB (after 24 weeks)
Hydrops / Normal
Unknown – not yet delivered
Table 7 Outcome information for first trimester CVS. (LB live birth, TOP termination of
pregnancy, IUD intra-uterine death, NT nuchal translucency, SB stillbirth, NND neonatal death)
There were 194/205 known outcomes (of the eleven missing outcomes, all
pregnancies are viable and are greater than 36 weeks gestation. EDDs are late
September / early October) at the time of the annual report 2013-2014. Of the total 207 First Trimester CVS performed there were seven pregnancy losses <
24 weeks, of these, four were within 14 days of the procedure but only two were a
normal pregnancy (normal karyotype, no structural abnormality). This gives an
overall pregnancy loss rate of 3.4% but a normal pregnancy loss rate of 1.0%.
There were two stillbirths (pregnancy loss>24 weeks) both were phenotypically
abnormal with a normal karyotype.
These figures are again collated into the Regional audit of CVS services (chaired by
Professor Kil
10.2 Second Trimester (>14 weeks) placental biopsy for fetal abnormality
There were 17 Chorionic Villus Sampling performed because of fetal abnormalities detected on ultrasound after 14 weeks gestation.
Cystic Hygroma/Increased NT
Nuchal Oedema / Cardiac Defect 2
Isolated Right pleural effusion
Cardiac defect, Encephalocele,
Absent Stomach Hyperechogenic bowel, reduced
Pregnancy loss < 24
liquor volume, SGA, Curled up
weeks within 14 days
Severe early onset IUGR
Pregnancy Loss n=1
Mosaic n=1
Unknown n=2
Table 8 Indications and outcomes for placental biopsy 2013-2014 (NK normal karyotype,
SGA small for gestational age, IUGR intra-uterine growth restriction)
Thus of the total 224 CVS performed in the year 2013-2014, there were five pregnancy losses within 14 days of the procedure giving an overall pregnancy loss
rate of 2.2%. However the procedural loss rate for phenotypically and/or
karyotypically normal pregnancies was 1.0%.
11.
Amniocentesis Dr Tracey Johnston
The Amniocentesis service continues to be provided by a group of specialist staff.
All operators are trained to the RCOG recommended standards. The department provides training in amniocentesis to individuals undergoing specialist training within the department. Table 9 below shows the number of amniocentesis performed in comparison with the previous two years. There continues to be a decrease in the number of amniocentesis performed, with a year on year decrease of approximately 15% per
annum. The decrease is within those performed for aneuploidy screening, as expected from improved screening for Trisomy 21. Figure 5 shows amniocentesis by operator.
Aneuploidy Screening
Fetal Abnormality
Table 9 Total number of amniocentesis performed 2011-2014
Figure 5 Amniocentesis shown by Operator 2013-2014
Amniocentesis for Aneuploidy
There were 94 amniocentesis performed for screening for aneuploidy. The main
indications are illustrated in Figure 6 and are compared with the two previous years.
Again, this demonstrates the reduction in the number of amniocentesis performed
for high risk serum screening. The abnormal outcomes are detailed in Table 10.
High Risk on Serum ScreeningMaternal Age > 37Clinical genetics/prev FA/anxiety/other
Figure 6 Indications for amniocentesis for aneuploidy screening 2011-2014
Number Aneuploidy / genetic condition
47,XY,+r(7)/46,XY(3) X 1
Maternal Age > 37
Normal Karyotype x 2
Clinical genetics/Prev 13
FA/anxiety/other
Niemann Pick x 1
Table 10 Results of amniocentesis performed for aneuploidy / genetic screening
Amniocentesis for karyotyping in Fetal abnormality / suspected fetal
abnormality
106 amniocentesis were performed for karyotyping on pregnancies with a fetal
abnormality or a suspected fetal abnormality following detailed scan, including 4
twin pregnancies. There were 18 chromosome abnormalities detected, which are detailed with the pregnancy outcomes in Table 11.
46XX.ish del(22)(q11.2q11.2)(TUPLE1-)
Mosaic Trisomy 15
Mosaic Trisomy 20
Mosaic Trisomy 14
Twin 1 – Normal Karyotype,
Selective TOP of Twin 2
Twin 2 – T18 T13
Balanced Translocation
Unbalanced Translocation
Table 11 Chromosome abnormalities detected on amniocentesis following abnormal
scan
Pregnancy Outcomes after Amniocentesis
Unknown (not del)
Table 12 Outcomes following amniocentesis.
There are 2 unknown outcomes, both women have returned to their home country
for delivery. At the time of leaving the UK they were both in the third trimester and pregnancies were uncomplicated. There were four miscarriages following amniocentesis. All were < 24 weeks
gestation. There were two miscarriages following amniocentesis performed for screening. Both
had normal karyotypes and were structurally normal on scan; of these one miscarriage was within 14 days of the procedure. The remaining two miscarriages were from amniocentesis performed for Fetal
Abnormality. One fetus had exomphalos with a normal karyotype. The miscarriage was > 14 days following procedure. A further amniocentesis; performed alongside a Fetal Blood Transfusion was on a fetus who was severely anaemic. The baby died
few hours post procedure. Numbers are too small to draw conclusions regarding procedure related loss rates,
but different operators were involved.
Amniocentesis for Maternal Age
Although no longer recommended as a first line investigation, a total of 2
amniocentesis were performed for maternal age without screening. Of these; one
was referred from the West Midlands area and the other was a Birmingham
Women's Hospital patient. The maternal ages were 39 and 44 years. Both had been appropriately counselled regarding the risks, but were clear that they wished to
proceed to diagnostic testing without screening. In both cases the karyotype was normal and both pregnancies proceeded to live births.
Fetal Blood Sampling: Mr B Martin
A total of 14 Fetal Blood Samples were performed on 13 patients during 2013-2014. Five of those were in association with late termination of pregnancy. Seven were
performed for the investigation of structural anomalies identified on ultrasound, including 1 for the investigation of possible CMV infection. A total of seven samples were performed for the investigation of suspected fetal anaemia; of those 3 had rhesus disease (with one patient being sampled twice), 2 had parvovirus infection and for 1 the reason for hydrops was unknown. In 6 cases the blood sample was from the intrahepatic vein, in 3 from the umbilical cord and 5 was intracardiac. The figure below shows the site of sampling.
Figure 8 Site of Sampling. 2013-2014
The indication for Fetal Blood Samples compared with previous years is shown in Figure 9.
Figure 9 Indication for Fetal Blood Sampling. 2011-2014
Figure 10 Fetal Blood Sampling by Operator. 2013-2014
The karyotype was normal in 8, abnormal in 2 and not performed in 3.
The outcomes were: 6 underwent termination of pregnancy for severe fetal anomaly
1 suffered an intrauterine death. The baby was profoundly anaemic secondary to parvovirus infection
6 were live births. Five were anaemic. Three due to rhesus alloimmunisation, 1 to parvovirus and in one the cause of anaemia remains unknown. The other was
suspected of having CMV infection and postnatal investigation results showed IgG -Positive and IgM – Negative.
In-utero blood transfusions: M D Kilby
Between April 2013 and March 2014 there were 45 in-utero transfusions performed on fourteen women with fifteen pregnancies (one set of dichorionic twins) with fetal anaemia. This is noted an annual increase and demonstrates a three/four "cycle" demonstrating a pandemic of human parvovirus B19 infection (Figure). The majority
of pregnancies were complicated by anaemia secondary to : a) maternal alloimmunisation (50%; this year all causes being secondary to anti-D); b) human parvovirus infection B19 with transplacental infection (42.9%) and c) a single case of
selective TOP in a monochorionic twins, where the survivor required IUT (7.1%)(Figure).
n=1 (6.6%) MC twins : IUD
n=6 (40%). Human parvovirus B19
Figure 11 Underlying causes n=15 fetuses in n=14 pregnancies
The gestational age (GA, median) at first transfusion was 21.1 weeks (95%CI 19.7 –
23.9 weeks). A total of forty five in-utero transfusions were performed (twenty
seven (73.3%) were intravascular and seven (26.6%) were intraperitoneal (IPT), most commonly performed prior to 20 weeks. All these patients had adjuvant IVIG (1g/Kg/wk) until intravascular transfusions were initiated (range of doses 1 - 5).
Of the intravascular transfusions, 44.4% (n=20) were performed via the intrahepatic vein, 20.6% (n=9) were performed after cordocentesis and in 8.8% (n=4)
cardiocentesis and transfusion was performed in hydrops fetalis and severe parvovirus infection <20 weeks. All intraperitoneal transfusions were performed in fetus with a considerable risk of developing anaemia prior to 20 weeks gestation (Figure 12).
Figure 12
The median fetal haemoglobin prior to intravascular transfusion was 4.9g% (range
<0.1 - 10 g%) (all below 5th centile for GA). However, 5 fetuses had intraperitoneal
transfusions prior to first fetal blood sampling. All babies were live born at median GA of 33.5 weeks (95%CI 32.8 – 36.4 weeks). A breakdown by operator performing in-utero transfusions is indicated (Figure 13).
Figure 13
There was no fetal or perinatal mortality in the babies transfused for red cell alloimmunisation (100% survival). There were three in-utero deaths: two associated
within 6 hours of IUT for severe parvovirus infection and fetal blood samples <1g% and a single case at 30 weeks in a surviving monochorionic twin after selective termination. In those babies undergoing in-utero transfusion for human parvovirus B19 infection there was a 66% survival.
Figure 14 Total = 344 (2004-2014).
Management of Twin-twin transfusion syndrome (TTTS) M
Between 1st April 2013 and 31st March 2014, there were 46 pregnancies with TTTS considered for fetoscopic laser coagulation; n=44 (95.6%) were monochorionic, diamniotic (MC/DA) twins and n=2 were dichorionic triamniotic triplets (4.4%).
Of these 2.2% (n=1) were Quintero stage I, 17.4% (n=8) has stage II disease, 73.9% (n=34) had Quintero Stage III and three pregnancies had stage IV disease
(6.5%). The majority of women whose pregnancies were complicated by severe TTTS presented at <26weeks)(95.5%) were all offered and accepted fetoscopic laser ablation (FLA). The other pregnancies (n=2; 4.5%) were>26 weeks. In 43.5%
(n=20) the placenta was anteriorly sited and in 56.5% (n=26) it was posteriorly sited. When MK was operating (alone or with another consultant) local skin infiltration with 1% lignocaine was used with a remifentyl infusion for sedation (47.5%). The other operators used a spinal anaesthetic (52.2%).
The operators were MDK, WM and SJP. They operated independently and with each other as indicated below.
MK aloneBM aloneSP aloneSP/MKSP/BM
Figure 15 Fetoscopic laser ablation by operator.
In 34% of fetoscopic laser ablations performed a selective technique was utilized and in 66% the "Solomon technique" was used. A median of seven AVA were
coagulated using a Diode laser (range 5 - 12 AVA) and amniodrainage post-procedure to a maximum pool depth of 6cms. The median gestational age at presentation and operation was weeks 21 weeks (95% CI 20.2 – 21.7 wks). Of the pregnancies complicated by double fetal loss; this complication occurred at a range of between 1-6 weeks post-FLA. Most of these were miscarriages (5/7 [71.4%]) were associated with bleeding and/or PPROM.
However there were two cases where double IUDs were diagnosed within 6 hours of the laser procedure. Following examination of the cohort in total (2013-2014), the overall fetal survival post-FLA 67.02% (63/94 fetuses). Of these, there were single survivors in 36.2% of pregnancies (17/46). In 48.9 % (23/46) of pregnancies there were two survivors
and in 14.9% of pregnancies there was a double pregnancy loss (7/46). Thus, in 86.9% of pregnancies there was at least one survivor. The median prolongation of pregnancy in weeks was 17 weeks (95%CI 11.1 – 18.5wks). The
median gestation of delivery (of pregnancies with at least one survivor) was 34 wks (95% CI 32.2 – 34.2 wks). This was with a policy of ‘elective delivery' between 34 - 36 weeks, usually by caesarean section.
One pregnancy was delivered at 29 weeks at external/referring centres with two survivors. There was a significant discordancy in fetal haemoglobin concentration
(>5g%) and therefore the diagnosis of TAPS (twin anaemia-polycythaemia) was made (2.1% of fetoscopic laser procedures).
>1 survivor 2 survivors 1 survivor
Figure 16 Outcome of fetoscopic laser ablation.
These data indicate that outcomes in this single centre cohort are similar to
internationally published data (and those published previously published).
14.1 Radio-interstitial thermal ablation (RITA)
There were 9 RITA procedures. In n=5 cases this was performed because of an acardiac monochorionic twin pregnancy with twin reverse arterial perfusion
sequence with 80% (4/5) survival of pump twin (in one pregnancy fetoscopic laser ablation was simultaneously performed). There were n=4 cases of selective TOP for discordant fetal anomalies.
15. Other Invasive fetal therapy
During the course of 2013-2014 there were 13 procedures performed on 10
patients. Eight patients were from the West Midlands area and two from out of area.
There were three amniodrainages performed; one due to twin twin transfusion syndrome, one on a fetus diagnosed with small bowel obstruction and one performed on a fetus with polyhydramnious secondary to a complex cardiac
Eight fetal drainages were performed; one due to diaphragmatic hernia with a complex cardiac defect. Two were on the same fetus diagnosed with fetal ascites.
Another was due to cloacal plate anomaly. A further two drainages were performed on a fetus with Spina Bifida and a fetus with sacrococcygeal teratoma. The
remaining two were on the same fetus diagnosed with Noonan's Syndrome & bilateral hydrothoraces. This fetus also had a shunt inserted.
There was a further shunt inserted on a fetus with congenital bladder neck obstruction.
16. Pre-pregnancy Counselling / Pregnancy Loss Clinic (PPCC)
Ruth Kirchmeier Lead Specialist Midwife Counsellor
Within the Fetal Medicine Department, the PPCC continues to provide a regional
service for couples who have experienced the following:
Recurrent first trimester miscarriages Second trimester miscarriages Stillbirth or neonatal death Fetal anomaly Pre-existing maternal disease Previous severe pre-eclampsia
The aims of the clinic are: To carry out relevant investigations to identify any causes of pregnancy loss. To suggest any treatment which might be beneficial in a subsequent pregnancy.
To make an individualised plan of care, treatment and support for a subsequent pregnancy. To provide support and counseling following pregnancy loss and in any subsequent pregnancy.
To provide pre-pregnancy counseling for women with maternal disease. Midwifery input and bereavement support are provided by the following team of
specialist midwives in Fetal Medicine: Ruth Kirchmeier (Lead Specialist Midwife), Gill Jongman, Brenda Bolger, Nia Carnevale, Jane Meredith, Sarah Bourne and Linda Buckley.
Invaluable to the smooth running of the clinic, secretarial support is provided by Vicki Morrison-Thomas. There were 1109 attendances to the Pre-Pregnancy Counselling / Pregnancy Loss
Clinic in 2013-2014. This is made up of new and follow up patients. The reasons for referral fall into 3 main categories:
Pregnancy loss Fetal anomaly Maternal disease
However due to the complex nature of the work which is carried out within the PPCC
department, it is difficult to accurately give precise figures and categorize patients into referral reasons as many of these patients fall into several categories.
Pregnancy Loss
Women who experience recurrent first trimester miscarriages are comprehensively
investigated in the clinic according to the RCOG Guidelines. If all the tests are normal, this service is midwifery led and support and reassurance scans will be offered in future pregnancies. All women booked under the Fetal Medicine Team who experiences a second trimester pregnancy loss, stillbirth or neonatal death will be followed up in monthly clinics carried out by the Fetal Medicine Consultants, and these clinics are shown in
Women who have experienced unexplained fetal loss will have a preliminary
appointment with the midwives to carry out appropriate pregnancy loss investigations prior to their review appointment with the consultant. Support, reassurance scans and counselling will be offered in subsequent pregnancies.
Figure 17 Percentage of patients seen in each Consultant Clinic – 2013-2014
Fetal Anomaly
All women booked under the Fetal Medicine Team who terminate a pregnancy or whose baby's die following birth due to fetal anomaly, will be offered follow up in one of the consultant clinics. In addition a number of women booked elsewhere who
have been seen for diagnosis in the Fetal Medicine Department and who opt for a post mortem after termination of pregnancy will be offered follow up in one of the Fetal Medicine Consultant clinics.
If it is a complex anomaly where a possible genetic reason is suspected they will be seen in the Combined Genetic/ Fetal Medicine Loss Clinic held once a month by
Professor Mark Kilby and Consultant Geneticist Dr Denise Williams.
Combined Fetal Medicine / genetics Clinic:
These patients are seen by Mark Kilby and Dr Denise Williams (Consultant Clinical
Geneticist). The patients are either: i) Postnatal or pre pregnancy patients who have a strong person (or family) history of genetic disease or in whom a pregnancy has been complicated by a known or
suspected genetic aetiology. ii) on-going pregnancies with a ‘cluster' of ultrasound signs that make a genetic
diagnosis possible. 19% of the total pre-pregnancy/pregnancy counselling service workload was from this source.
Maternal disease:
SLE/Rheumatological/Immunological disease
Once a month Professor in Rheumatology Dr Caroline Gordon and Consultant Obstetrician Dr Tracey Johnson or Dr Ellen Knox carry out a combined Rheumatology/Obstetric clinic, to provide pre-pregnancy counseling for women with
pre-existing rheumatological or immunological disease who are planning future
pregnancies.
Renal disease
Once a month Consultant Renal Physicians Dr Graham Lipkin and Dr Clara Day and Consultant Obstetricians, Dr Tracey Johnson and Dr Ellen Knox carry out a combined Renal/ Obstetric clinic, to provide pre-pregnancy counseling for women with pre-
existing renal disease who are planning future pregnancies.
Haematological disease
Once a month Consultant Haematologist Dr Will Lester provides pre-pregnancy
counseling for women with pre-existing haematological disease, who are planning future pregnancies. Many of these women will need to commence clexane thromboprophylaxis as soon as they know they are pregnant and can contact PPCC
specialist midwives directly to coordinate this. In addition when required, Dr Lester has joint appointments with the obstetricians to provide haematology advice in making a plan of care for future pregnancies.
Figure 18 Number of patients seen in each Specialist Clinic – 2013-2014
For all of these clinics an initial work up is carried out by the PPCC specialist
midwives to ensure that all relevant investigations are carried out and are up to date
prior to them being seen by the Consultants.
The subsequent review with the consultants addresses the following issues:
Is there current active disease and if so what would the risks of embarking on a
pregnancy be, both for the mother and baby?
If disease is currently stable, is medication suitable for pregnancy? If not, appropriate alternative medication is discussed and the importance of allowing time to assess whether remaining stable on these drugs is stressed.
General pre-pregnancy lifestyle advice. The CEMACH report (2011) into maternal mortality highlighted the importance of pre-pregnancy counselling for women with complex medical conditions and as a
consequence, the numbers being referred from the regional renal and rheumatology clinics has steadily risen.
Previous Pre-eclampsia.
In collaboration with AEPC, the PPCC is the designated regional centre for the
investigation of women who have experienced severe pre-eclampsia in previous
pregnancy.
16.1 Miscarriage Support Group
A Miscarriage Support Group in conjunction with the Miscarriage Association
continues to be held on a monthly basis at Birmingham Women's Hospital. The
group is coordinated by Alison Noakes, a previous patient of the clinic. Ruth
Kirchmeier, Specialist Midwife Counsellor provides professional support. Patients
seem to greatly appreciate the opportunity to be able to discuss their experiences informally with others who have been through similar events.
17. Conclusion
This has been a busy year with an overall increase in activity. The high workload,
complexity of cases and interaction with the academic process makes our centre one of international repute. The staff has worked very hard and I personally would like to thank them for this.
The uncertainty surrounding commissioning of Fetal Medicine Services nationally is a concern and one hopes and works towards minimizing such uncertainty for
Acknowledgements: Thank you to all the section compliers who have worked hard to bring together these metrics. I would like to give special thanks to Mrs.
Emma Prentice who has overseen the process and played a major role in the collection of data, their collation and the editing of the final report.
Appendix 1
Academic Staff
Professor Mark Kilby – Clinical Coordinator in Maternal and Fetal Medicine
(NHS); Deputy Head of Division of Reproduction & Child Health (Academic).
Dr Katie Morris – SST/NIHR Lecturer
NHS Staff
Mr Peter Thompson – Consultant Obstetrician and Medical Director Mr Bill Martin – Consultant in Fetal Medicine Dr Tracey Johnston – Consultant in fetal Medicine and Clinical Director of
Maternity Services
Miss Sam Pretlove – Consultant in Fetal Medicine Miss Tara Selman – Consultant in Fetal Medicine Dr Paul Miller – Consultant Paediatric Cardiologist Dr Tarak Desai – Consultant Paediatric Cardiologist Dr Anna Seale – Consultant Paediatric Cardiologist
Obstetric Radiology Staff
Dr Josephine McHugo – Consultant Obstetric Radiologist
Sub Speciality Trainees
Dr Katie Morris – SST/NIHR Lecturer Dr Caroline Fox – SST
Midwifery / Sonographer Staff
Veronica Donovan – Clinical Midwife Manager / Sonographer Helen Baker – Specialist Midwife / Sonographer Ruth Kirchmeier – Specialist Midwife Nia Carnevale – Midwife Gill Jongman – Midwife Brenda Bolger – Midwife Jane Meredith – Midwife / Sonographer Sarah Bourne – Midwife Linda Buckley – Midwife Marguerite Usher-Somers – Specialist Sonographer Jill Agnew – Specialist Sonographer Sandra Hopkins – Midwifery Assistant Frances Rich – Midwifery Assistant / Clerk
Administrative Staff
Nick Reading / Kerry Forward – General Manager, Maternity
Emma Prentice – Office Manager / PA / Data Analyst Samantha Mostyn – Administrator Alison Hill – PA and Secretary to Professor Kilby and Dr Johnston Elaine Smith – Secretary to Mr Martin, Mr Thompson and Miss Pretlove Vicki Morrison-Thomas – Pre Pregnancy Clerk Debbie Caughtry – Receptionist / Clerical Assistant Sharon Sams – Receptionist / Clerical Assistant
Appendix 2
Actual No
Dec Jan Feb Mar Total
Performed
Cervix assessment
Chorionic villus
Consultant Fetal
Detailed 1st Trimester
Detailed Rhesus scan
Early Pregnancy Scan
Fetal blood sample
Fetal heart rate
Nuchal translucency
Radiographer 1st
Radiographer fetal
Raised AFP detailed
Selective reduction
Umbilical artery
Viability scan post
649 634 614
626 574 838
678 657 721 622 580 7957
Fetal Medicine Scan procedures – 2013-2014
Actual No performed: This is the number of procedures actually performed 2013-
2014. Explanation has been given within each section.
Appendix 3
NHS BIRMINGHAM CROSSCITY CCG
NHS BIRMINGHAM SOUTH AND CENTRAL CCG
NHS CANNOCK CHASE CCG
NHS COVENTRY AND RUGBY CCG
NHS EAST STAFFORDSHIRE CCG
NHS HEREFORDSHIRE CCG
NHS NORTH STAFFORDSHIRE CCG
NHS REDDITCH AND BROMSGROVE CCG
NHS SANDWELL AND WEST BIRMINGHAM CCG
NHS SHROPSHIRE CCG
NHS SOLIHULL CCG
NHS SOUTH EAST STAFFORDSHIRE AND SEISDON PENINSULA CCG
NHS SOUTH WARWICKSHIRE CCG
NHS SOUTH WORCESTERSHIRE CCG
NHS STAFFORD AND SURROUNDS CCG
NHS STOKE ON TRENT CCG
NHS TELFORD AND WREKIN CCG
NHS WARWICKSHIRE NORTH CCG
NHS WOLVERHAMPTON CCG
NHS WYRE FOREST CCG
NHS BLACKPOOL CCG
NHS CHILTERN CCG
NHS CHORLEY AND SOUTH RIBBLE CCG
NHS DONCASTER CCG
NHS EAST LEICESTERSHIRE AND RUTLAND CCG
NHS GREATER HUDDERSFIELD CCG
NHS GREATER PRESTON CCG
NHS HARDWICK CCG
NHS HARINGEY CCG
NHS HARTLEPOOL AND STOCKTON-ON-TEES CCG
NHS ISLINGTON CCG
NHS LEEDS NORTH CCG
NHS LEEDS WEST CCG
NHS LEICESTER CITY CCG
NHS LINCOLNSHIRE WEST CCG
NHS LIVERPOOL CCG
NHS MANSFIELD AND ASHFIELD CCG
NHS NEWARK & SHERWOOD CCG
NHS NEWCASTLE WEST CCG
NHS NORTH DERBYSHIRE CCG
NHS NORTH EAST LINCOLNSHIRE CCG
NHS NORTH KIRKLEES CCG
NHS NORTH MANCHESTER CCG
NHS NORTH TYNESIDE CCG
NHS NOTTINGHAM CITY CCG
NHS OXFORDSHIRE CCG
NHS ROTHERHAM CCG
NHS RUSHCLIFFE CCG
NHS SHEFFIELD CCG
NHS SOUTH EASTERN HAMPSHIRE CCG
NHS SOUTH MANCHESTER CCG
NHS SOUTHERN DERBYSHIRE CCG
NHS STOCKPORT CCG
NHS TRAFFORD CCG
NHS WEST ESSEX CCG
NHS WEST LANCASHIRE CCG
NHS WEST LEICESTERSHIRE CCG
NHS WILTSHIRE CCG
NHS WINDSOR, ASCOT AND MAIDENHEAD CCG
Fetal Medicine Activity by CCG - 2013-2014
Appendix 4
Fetal Anomalies detected on ultrasound scans:
Fetal abnormality
2013-2014
Regional
CARDIAC*
ABDOMINAL
Diaphragmatic Hernia
RESPIRATORY
Cystic Lung Lesion
Other Respiratory
SKELETAL
Other Limb
HEAD AND NECK
Other Head and Neck Facial
Nuchal oedema / thickness
HYDROPS (and pleural eff / ascites)
Hydrops (and pleural eff / ascites)
Gastrointestinal (inc hyperechogenic bowel)
Spina Bifida and / or Hydrocephalus
Holoprosencephaly
Dandy Walker Cyst
Agenesis of corpus callosum
Ventriculomegaly
TWIN COMPLICATIONS NOT TTTS
Twin complications not TTTS
SACROCCYGEAL TERATOMA
Sacroccygeal teratoma
OTHER - Miscellaneous
Anomalies picked up from ultrasound scans 2013-2014
*(Cardiac plus additional structural anomaly)
Appendix 5
Echo Diagnosis
Arterial disproportion
Atrioventricular Septal Defect
Coarctation of the Aorta
Common Arterial Trunk
Common Atrioventricular Junction
Complex Cardiac anomaly
Double Inlet Left Ventricle
Double Outlet Right Ventricle
Ebsteins anomaly
Hypoplastic Arch
Hypoplastic Left Heart Syndrome
Hypoplastic Right Heart
Left Atrial Isomerism
Pulmonary Atresia
Pulmonary Stenosis
Ventricular Disproportion
Tetralogy of Fallot
Transposition of the Great Arteries
Tricuspid Atresia
Tricuspid Dysplasia
Tricuspid Regurgitation
Univentricular Heart
Ventricular Septal Defect
Cardiac anomalies detected – 2013-2014
Appendix 6
Consultants supporting the Pre Pregnancy Counselling / Pregnancy Loss
Clinic
Mr Bill Martin carries out a monthly Pre-Pregnancy Counselling/ Pregnancy
Miss Tara Selman carries out a monthly Pre-Pregnancy Counselling/Pregnancy
Dr Tracey Johnston carries out a monthly Pre-pregnancy Counselling/
Pregnancy Loss Clinic and in addition is the lead Consultant Obstetrician for the regional Immunology and Renal clinics.
Professor Mark Kilby carries out a monthly combined Genetic/Pregnancy Loss
Clinic with Dr Denise Williams.
Mr Peter Thompson is the lead Consultant Obstetrician for the regional adult
cardiology clinic.
Dr Sam Pretlove carries out a monthly Pre-Pregnancy Counselling/ Pregnancy
Dr Ellen Knox carries out a monthly Pre Pregnancy Counselling/ Pregnancy
Loss Clinic and in addition covers the immunology and renal clinic and is also
the lead in the multiple pregnancy clinics.
Dr Will Lester carries out a sporadic Pre Pregnancy Counselling /Pregnancy
Loss Clinic and in addition is the lead in Haematology
The following consultants are available for combined appointments with the Maternal
Fetal Medicine Consultants:
Dr Denise Williams (Consultant Geneticist) Dr Graham Lipkin (Consultant Renal Physician) Dr Sarah Thorne (Consultant Cardiologist) Dr Caroline Gordon (Consultant Rheumatologist)
Source: http://www.markkilby.co.uk/2013-2014.pdf
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