31883Fwd: Re:New here with HCM diagnosis
- Dec 31, 2007Shannon,
> With a respiratory rate that high, it sounds
> as though your dear kitty, Spice, might actually
> be in heart failure (CHF). If so, then Lasix, a
> might be indicated. Don't let the idea of heart
> disturb you. It just means that the heart isn't
> pumping well enough to prevent fluid from backing
> up into the lungs and it is relatively easy to
> treat in its early stages. Some cats live for
> years after a bout of CHF.
> I would discuss this with the vet that diagnosed
> the HCM as soon as possible. I would not
> wait for a week to start a diuretic if it is
> Most cats have a normal
> respiratory rate in the 20s when calmly
> resting and sometimes in the mid to
> low 20s when sleeping, but not dreaming.
> I think most would agree that respiratory rate
> in the mid 30s is starting to be concerning
> and a rate above 40 will often indicate
> a problem.
> Was the HCM diagnosed by ultrasound?
> Has she seen a cardiologist, or just
> the second vet? If only an x-ray was done, it would
> be clear what the exact diagnosis is. Radiographs
> can only show an enlarged or grossly misshapen
> heart. The x-ray would also show fluid in the lungs
> or in the lung cavity. The ultrasound allows the
> examiner to determine the thickness of the heart
> walls, the heart valves and their movement and
> allows one to calculate the velocity of blood flow
> in the heart. An ultrasound is required to
> categorize heart disease as HCM (hypertrophic
> cardiomyopathy), DCM (dilated cardiomyopathy),
> RCM (restrictive cardiomyopathy), unclassified
> cardiomyopathy or valvular disease.
> Atenolol is used to slow the heart rate
> and is usually started at a low dose and
> then slowly increased. Too high of a dose
> of atenolol can cause decompensation,
> especially when first introducing the
> drug (CHF). Benazepril is an ACE-inhibitor
> that acts as a weak vasodilator and can
> lead to potassium retention. If potassium
> levels get too high, the heart will slow down
> and may cause a fatal arrhythmia. Most
> animals here receive benazepril in combination
> with lasix. Again, there might be reasons
> why your vet chose this particular combination
> for your cat, but it might illustrate the importance
> of having your cat seen by a cardiologist
> or internal medicine vet that specializes in
> cardiology. Unfortunately, many general
> practitioner vets are not as familiar with
> heart disease as one might want.
> I haven't heard of feline fatty liver disease
> as a consequence of HCM before. I am
> not saying that the vet is wrong, just that
> I don't remember seeing anything like that before.
> Perhaps, because some kitties with fluid
> in their lungs (CHF) will stop eating and
> drinking, your vet suspects this as the cause
> of the hepatic lipidosis, but in my opinion,
> that would not be a direct consequence of HCM,
> but rather an indirect consequence of heart failure.
> I am so glad that you are
> able to feed your girl without much trouble.
> You must love her very much to keep up wiht
> the frequent feedings. Are you already a
> member of the yahoo feline assisted feeding
> group? They can be a great resource and
> I am very sorry to learn about Spice. She
> is relatively young. My cat Cozette was
> diagnosed with HCM when she was about
> the age.
> Best wishes to you both.
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