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heart rates and hyperthyroidism

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  • lawstu_uk
    Hi I checked my cat s heart rates and his resting heart rates are between 160 - 180 per minutes. When he was stressed in the vet, it has always been 200 per
    Message 1 of 1 , Apr 9 8:09 AM
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      Hi

      I checked my cat's heart rates and his resting heart rates are
      between 160 - 180 per minutes. When he was stressed in the vet, it
      has always been 200 per minute.

      I checked around for the ideal heart rates but some say 110-140 and
      some say it can be below 200. So I'm a bit confused. My cat is 10
      years old.

      He was diagnosed hyperthyroidism and cardiomyopathy last Oct. His
      heart ultrasound showed no serious heart condition except Gallop when
      the heart beats are fast. Specialist said it could be secondary to
      hyperT. He isn't on any medication but I've been giving him 20mg -
      30mg of CoQ10 a day, L-Carnitine and vitamin E. And some fish oil.

      His BP was 140 at the vets last year when he was not stressed. But
      last month, the BP was 160 - 180 at the vets and he was hissing all
      the time.

      Last week, his thyroid panel came back and total T4 and free T4 are
      now finally in the upper limit where those were twice more than the
      upper limit in early March.

      Any thoughts of heart rates? I'm also curious for those whose cats
      had both hyperT and heart diseases, once the thyroid is down, how
      long does it take to see the improvement, if it was caused by hyperT?

      Thanks.

      Andrew
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