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80% of cases of
overlong soft palate occur in brachycephalic breeds such as the Bulldog
and Pekinese. It is part of brachycephalic airways obstruction syndrome
(BAOS). In BAOS 100% of dogs have an overlong soft palate, 50% have
stenotic nares, and 30% have
laryngeal collapse, eversion of laryngeal ventricles. Some cases have
enlarged oedematous tonsils and tracheal hypoplasia.
Overlong soft palate is seen to a lesser extent in breeds such as
Bull Mastiffs and Staffordshire Bull Terriers where the pronounced
vertical 'stop' is thought to play a part in causing the problem.
However, this has not been proven.
My practice has 35,000 clients of which 60% are dogs. Even though
we have many
Staffordshire Bull Terriers on our books we have only operated on
one Staffordshire Bull Terrier in the last seven years. A few days
ago I spoke to a veterinary soft tissue surgeon specialist.
He told me that he couldn't remember the last time he operated on
a Staffordshire Bull Terrier with an overlong soft palate.
Anatomy
The diagrams explain the anatomy far better than words can. The pharynx
is divided into three regions, the oral pharynx, nasal pharynx and
the laryngeal pharynx. The hard palate forms the roof of the mouth
and is composed of bone covered in mucosa. The soft palate forms 'the
end' and is composed of soft tissue not bone. The soft palate is regarded
as overlong if it hangs behind the epiglottis in the opening to the
trachea (windpipe).
The overlong soft palate causes injury to itself and the larynx, and
leads to inflamatory oedema (swelling).
Clinical Siqns
Clinical signs are caused by the overlong soft palate preventing enough
air getting into the trachea and therefore the lungs.
Gagging and coughing are frequently accompanied by rattling or snoring
during breathing, especially during inspiration (breathing in). In
very rare cases the dog can collapse. This is usually when an
affected dog is exercised in hot weather.
Surgery
Again, the diagrams explain the surgical procedure better than words.
It is one of the easier surgical procedures with postoperative problems
rare. The palate is cut a little and then sutured in sequence
until the whole of the incised portion is removed. Corticosteroids
are given pre and post operatively to reduce oedema (swelling). Antibiotics
are not required.
Abrasive foods are avoided for at least two weeks. Dogs respond very
well to surgery.
Another veterinary surgeon told me that he operated on a Staffordshire
Bull Terrier
that couldn't walk down the street. After surgery the dog could run
for miles! Over correction will result in nasal regurgitation and
cannot be reconstructed.

Discussion
From my own experience and speaking to one of the leading veterinary
soft tissue surgeons in Britain, I can only conclude that the incidence
of overlong soft palate is very low in the Staffordshire Bull Terrier.
After listening to people at dog shows this came as a surprise to
me. I don't know why this is and I would be very interested to hear
other people's opinions and experience of overlong soft palate in
the Staffordshire Bull Terrier. Searching through the literature I
found no studies supporting the view that the condition is hereditary
in our breed. This coupled with the low incidence reported
suggests that it is a congenital and not an hereditary problem in
our breed.
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