Cat cardiomyopathy

Sonopath Forum

  • 7 year old MN 5.5kg cat with murmur
  • Exam done under butorphanol and alfaxalone im as needed
  • What is the recent terminology to describe this LV band? Would you say equivocal LV hypertrophy?

  • 7 year old MN 5.5kg cat with murmur
  • Exam done under butorphanol and alfaxalone im as needed
  • What is the recent terminology to describe this LV band? Would you say equivocal LV hypertrophy?

Comments

Peter

Hi!
This is a false tendon,

Hi!

This is a false tendon, this cat has several false tendons.

To me the left ventricular wall looks fairly normal. Your septum measurement includes a right ventricular papillary muscle. If you exclude it, the wall thickness will be < 5 mm.

Peter

veteurope1

Thanks Peter, I see what you

Thanks Peter, I see what you mean. 

Is the mitral inflow indicative of diastolic dysfunction? Are false tendons considered a normal variant?

Peter

Hi!
It seems to me that E-

Hi!

It seems to me that E- and A-waves are approx the same amplitude – which is normal. I would recommend increasing the sweep speed tp be able to differentiated the waves better. And – if you are still unsure, you can simply measure the isovolumetric relaxation time additionally which is about 40-60 ms in a normal cat. 

Re false tendons: Maybe, this is not entirely understood so far. I guess I see false tendons in about 95% of Maine Coon cats. I usally describe them as a normal variant unless they cause diastolic dysfunction (you see that on 2D images – if they span the LV from the septum to the free wall at the same level, they can impair diastolic function – in this case I would call them hemodynamic significant). Means, I always check diastolic function when I see them.

Peter

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