A heart murmur can mean many things. It can be entirely innocent and due to
a 'flappy valve' as it is in several of my cats who showed no HCM at all
on echo. Or it can mean HCM which is a very serious disease. A heart murmu
may also be due to stress at the vets like my Toby has and it was shown on
echo to be the amount of blood pushing the valve when he got stressed.
If hyperthyroid isnt under control, then it can cause secondary HCM. So it
is vital the thyroid levels are normal. The only way to tell if Cheshire
has heart disease is to have the echocardiogram. I would get it done as soon
as possible now she has her thyroid treated. You need to watch for her
breathing rate, anything over 30 a minute is a cause for alarm. Any changes to
her usual rate and type of breathing are as well. If she has heart disease
there are drugs she can take to help her.
I wouldn't have the teeth done until after the ultrasound unless it is
absolutely vital. She may need special care with an anaesthetic if she has
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