Antenatal screening for Congenital
Heart Disease
an Overview of our "hands-on", on-site Fetal Heart Scan Training
Background
Despite improvements in recording
congenital malformations, over the last decade, the reporting of
congenital heart disease (CoHD) still lags behind with only about 1/3 rd of cardiac defects reported. (Source: NW Thames CMR report on 2002 & 2003,
pub. April 2005)
CoHD is far more common than reported and the early detection of isolated
heart disease is extremely important to outcome. Hands-on
training, using the 5 View protocol
is one of the best ways to improve the detection of CoHD at the 20-week scan.
The incidence of fetal heart
disease has been reported as 7-13 per 1,000 scans,
depending on the degree of perinatal cardiology support (ref.
Pubmed doc 15284832 2004).
We aim for a detection rate for severe CoHD (that
requiring surgery/intervention in the first year of life) of
3.5/1,000.
Theoretical vs Practical training
Current University training in obstetric ultrasound screening tends
to be theoretical, yet the skills required for successful scanning
are also practical, including: hand-eye co-ordination,
pattern-matching, 3D visualisation.
A good comparison might be learning to ride a
bike or drive a
car. Some people take longer than others, but it helps to (a)
know the rules and how the equipment works, (b) practice the basics, (c) have lessons with a
competent, encouraging teacher, (d) gain practical experience "on
the road" and (e) take and pass a practical and theoretical
test.
The bottom line is that a practical skill
requires practice and lots of it!
Practice makes perfect
Everyone is different and different practice aids may be needed to
improve practical skills, improve
visualisation.
Hands-on training, fetal
cardiac phantoms, training lectures/CDs, diagrams, 3D heart models
...
How do you know when a heart is not normal?
It is important to see plenty of normal fetal hearts to
recognise the whole range of normality and then it is important to
recognise when a heart is not normal. Some people sense / know
/ feel that something is not right, without necessarily being able
to say why. Our advice is "trust your instincts" and get an
expert second opinion.
It is important for screeners to have the
confidence to look for and find fetal cardiac anomalies.
You are important!
The biggest single factor in increasing detection is you! It
takes the best equipment, the best training
and time to become experienced at scanning and detect more "heart
babies".
Volunteer Trainers: If you are
interested in becoming a Volunteer Trainer ...
Questions & Answers about our hands-on training
1. Who can receive training?
2. The goals of fetal heart scan training
3. Benefits of training / Successful screening
4. How can a unit apply for "hands-on" training?
5. What is the cost of training?
6. The importance of audit
7. How many training sessions will a sonographer need?
8. Do you train certain key personnel who then train others?
9. Attending a cardiac course before hands on training
10. How can we help the charity to train more sonographers?
11. How many training sessions will a sonographer need?
1. Who can receive our
hands-on training?
We only provide "hands-on" training to an ultrasound screening
department of an NHS maternity hospitals in the UK.
We do not train individuals.
All training is "on-site", using a
department's own ultrasound equipment.
This is the best way to improve day-to-day scanning and highlight
issues that are particular to a department.
In addition, it is important
to verify that equipment is correctly set-up, sonographers are given
time to practice and develop their skills and all referrals are
audited (with feedback from referrals used to verify that audit and
highlight any training issues) - see 6., below.
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2. The goals of fetal heart scan training
The goal of our fetal heart scan training is to increase the antenatal
detection of congenital heart disease from a national average of about
30% in the UK to above 75%.
Fetal cardiac scanning has been practiced in
the United Kingdom for nearly twenty years, yet the vast majority
of cardiac defects still remain undetected (upto 75% undetected according to RCOG
in 2000).
The 4-chamber view alone can only detect half of major cardiac
malformations. The addition of the outflow tracts of the heart
at the anomaly scan (as per RCOG guidelines, 2002 and NICE Antenatal
Update 2008) can improve antenatal detection of cardiac defects
even further, but does not detect important aortic arch lesions,
so we recommend including the 3 Vessel and Trachea view (View 5).
We recommend a systematic protocol that is
understood and practiced by all sonographers, the 5
Transverse Views.
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3. Benefits of training /
Successful screening
The early detection of a fetus with
heart disease offers more choices during pregnancy and can avoid unnecessary illness
or delay before further treatment. Training itself has a major
impact on the confidence of sonographers.
Tips for successful screening: From our experience since Oct. 2002
and based
on a thesis on including Outflow Tracts, we can say that
successful screening for heart defects at 20 weeks relies upon several
factors:
-
Practical Training: on-site "hands-on" training in a standard protocol
by an experienced trainer;
-
Correct equipment: modern, reliable ultrasound equipment with correct fetal
echo settings;
-
Support: from the department and hospital to give sonographers
some extra time to learn and practice;
-
Experts: Access to expert second opinion
about suspected heart disease;
-
Feedback: Constructive, no blame feedback about cases found or missed,
which encourages review and learning.
Given these conditions, sonographers can acquire the
confidence to look for and find fetal cardiac anomalies.
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4. How can a unit apply for "hands-on" training?
At present we are fully committed to training selected
UK NHS Trust maternity hospitals in our programme.
We do not train individuals.
Department Superintendents (or equivalent) can apply to be
considered for training for their obstetric ultrasound department. Please email your details &
some information about your unit (location, size, relative experience
of part & full-time staff, machines, current protocol & any relevant
issues).
We also ask for good retrospective audit figures (births, scans,
anomalies & outcomes over the last 2-3
years) plus a good ongoing audit, so we know where we are starting from
& can measure improvement. The audit
also helps you to maintain skills in the long run.
Please email or contact us to discuss this.
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5. What is the cost of training?
We provide low-cost training, to cover our costs.
This is now £600 for a 2-day training session, including travel and accommodation expenses.
Compared to sending sonographers on a course, it is
far more cost-effective to bring a trainer to a hospital. Hands-on training on your own equipment can be far more effective
than on an unfamiliar machine.
Please email or contact us to discuss this.
All training is subject to our resources &
discretion and we ask that you co-operate with our trainer and give
priority to training sessions. We also ask that you maintain good audit, to
measure improvements and maintain skill levels.
We reserve the right to withdraw training if these conditions are not
met, as they impact on our limited resources and prevent us from
reaching more hospitals.
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6. The importance of audit
Audit is vital if we are to make improvements in the detection of
CoHD. It is no coincidence that the departments with the highest
detection rates also have a good audit and use the feedback from this
audit to gain further improvement.
Audit allows all cases of suspected CoHD that are referred
for a full fetal echo to be tracked and verified. Missed cases
are often picked up by other departments, such as Obstetrics,
Paediatrics & Cardiology and this information can be useful
feedback for further training. Feedback may be difficult where referrals are made
to other cardiac units, so cooperation between departments is vital.
If you have views on this, please email or contact us.
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7. How many training sessions will a
sonographer need?
This depends on how much cardiac scanning an individual has done
and how well they learn to perform a fetal cardiac scan.
It is usual to have one full training session, so that training can be
put into practice, until our trainer returns for a follow up visit.
Training should continue until
sonographers become confident that all views can be consistently
imaged so that suspicions or anomalies can be more easily detected,
within time and resource constraints.
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8. Do you train certain key personnel who then
train others?
The idea is to try and train each sonographer
individually.
In departments with a large proportion of part-time staff it may be
necessary to train key personnel who then may train other staff. Staff who already have good fetal echo
skills may also support the training. Our trainer will assess this and make
recommendations.
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9. Should we attend a cardiac course before hands on training?
It is a good idea to have attended a basic fetal cardiac course just
before “hands on” training begins. Some courses offer
“hands on” scans as part of the course; others are
just theoretical. See the Health
Professionals page for more information on courses.
Sonographers have commented that they feel the departmental training makes more sense if they have already had
some basic fetal cardiac scanning information.
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10. How can we help the charity to train more sonographers?
There is an increasing demand for fetal cardiac scanning and for
more sonographers and more trainers.
We are actively raising funds, but any support you
can give us would be most welcome. If you wish to fund-raise
locally please email or contact us to discuss this
and see how we can help.
Another way to fund training is for a group of
hospitals in a region to each contribute a share of the training
costs. We can coordinate this and create an independent training
resource that will be fairly shared across these hospitals.
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11. Sponsored 2-day fetal cardiac training package
Our 2-day package provides a Senior Sonographer Trainer for 2
days "hands-on" fetal cardiac scan training for the whole
department, in a suitable obstetric
ultrasound unit in the UK. Costs £600 for 2 days including expenses (please contact us for
details).
The aim of this package is to demonstrate how to
improve detection of fetal heart disease, using the 5 View protocol,
at around 20 weeks' gestation.
This is subject to agreement with the Chief
Sonographer of the department, the hospital and availability of suitable resources
at the unit. Training is provided at our discretion, subject to
availability of Tiny Tickers resources and terms apply. The charity may continue to provide
training and support entirely at our discretion.
Our criteria for receiving "hands-on" training:
To help us provide the most relevant training to as many staff as
possible, we ask for the full co-operation of the department in
prioritising this training over other activities. We need some
basic information about a unit (e.g. location, size, relative
experience of part & full-time staff, machines, current protocols &
any relevant issues).
We would also like to receive a retrospective audit
(e.g. births, scans, anomalies & outcomes over the last 2-3 years), as
this helps to understand current detection rates and where to target
our training. We recommend that a unit has an ongoing audit of
all referrals, as this helps to maintain skills in the long run.
Who can sponsor this package:
Any suitable sponsor who wishes to help a unit to improve detection of
fetal heart disease can apply (e.g. Ultrasound manufacturers providing new
equipment, Agencies providing sonographers, Companies, Charities and
Hospitals).
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Volunteer Trainers: If you are
interested in becoming a Volunteer Trainer ...

Hands-on Fetal Heart Scan Training: Sponsors (2002 - 2005)
This important work was initiated by the
British Heart Foundation and
supported by other donations.
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