Pioneering Interventional Procedure
Ground breaking surgery by our very own team has proved size
doesn’t matter for Teddy as he was one of the smallest patients in the
world to undergo surgery for a congenital heart defect.
Weighing in at just over 2.2kg Teddy was one of the smallest patients to undergo lifesaving
heart surgery at Willows. At just eight weeks of age, Teddy was referred to our Specialist
cardiology team as he had been diagnosed with a patent ductus arteriosus (PDA).
On presentation, Teddy was dyspnoeic with pulmonary oedema and became easily stressed
by examination. Doppler echocardiographic examination demonstrated the PDA and despite
the pulmonary oedema, sufficient visualisation was obtained to make the measurements
for sizing the device. However there was a marked volume overload of the left ventricle and
atrium as a consequence of the PDA, with early systolic failure of the left ventricle.
Urgent surgery was necessary for Teddy, as he was already showing signs of heart failure.
The cardiology team at Willows are one of only a few in the UK who can carry out this type
of cardiac interventional procedure – this type of procedure has regularly been performed
on patients as small as 4kg but until now, 4kg has been the cut off for an interventional
procedure of this condition.
Under general anaesthesia the femoral vein was catheterised. The PDA was retrograde
catheterised and an angiogram performed under fluoroscopic image intensification. This
revealed a moderately large duct, which had an ostium of 3-4mm and an ampulla of 7mm.
An 8mm Amplatzer Plug II was then deployed across the ostium of the duct. The Amplatzer
Plug was then released from the delivery device. Repeat echocardiography demonstrated
no residual ductal flow and there was already improvement in the heart size on the post-
procedure scan -
an excellent result
RCVS and European Specialist in
Brigite sees medical and surgical cardiology cases,
and is particularly interested in the diagnosis and
management of arrhythmias, in particular, atrial
fibrillation, and the medical and surgical treatment
of congenital heart diseases.
ECVS Resident in Small Animal Surgery
Emma has a strong interest in all areas of soft tissue
and orthopaedic surgery, and is currently working
towards a European Diploma in Veterinary Surgery.
Clinician inVeterinary Neurology
Cristoforo developed his interest in Neurology
whilst completing an externship at Fregis Small
Animal Hospital, Paris, which is the largest small
animal hospital in France.
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