Martha Cannon

  • Webinar recorded on Thu 15th December, 2016
  • 1 hours 16 mins
  • 1 Comment

Diabetes mellitus is a common problem in cats – especially in middle aged, overweight, under-active cats. Feline diabetes is a potentially reversible condition, and remission appears most likely if diabetes is recognised and treated early, and effectively

  • Good control of the diabetes is most likely if:
    • The cat is fed a low carbohydrate diet in multiple small meals
    • A long-acting insulin is injected twice daily
    • Insulin dose is increased slowly

The International Society of Feline Medicine (ISFM) has recently published a set of Consensus Guidelines on the Practical Management of Diabetes Mellitus in Cats. These guidelines are free to access at http://jfm.sagepub.com/site/Guidelines/Guidelines.xhtml

Aims of Treatment

  • To limit or eliminate the cat’s clinical signs
    • Aim to keep blood glucose < 14 mmol/L most of the time
  • To use a treatment regime that is affordable and fits into the owner’s daily routines
  • To avoid insulin-induced hypoglycaemia
    • Aim to maintain the blood glucose £5 mmol/L at all times

Dietary Considerations

Cats are obligate carnivores with limited ability to handle carbohydrates. They hunt and eat small prey animals, so their metabolism is adapted for small frequent meals rather than infrequent larger meals. They also show no significant post-prandial hyperglycaemia, so the timing of feeding in relationship to insulin injections is less important.

Insulin Treatment in Diabetic Cats

The ISFM Consensus Guidelines recommend starting treatment with longer acting insulin preparation injected twice daily:

  • Starting dose 0.25 iu/kg twice daily based on the estimated ideal weight of the cat and then rounded down to the nearest whole unit
  • Rigid adherence to a 12 hourly injection schedule is impractical for many owners – injections given within a range of 10-14 hours apart is acceptable, and that the occasional missed dose will do no harm.

Monitoring the Response to Insulin

Glucose curves are an invaluable tool in the management of feline diabetes, and home monitoring is a practical, cost effective option which, with good initial support, the majority of owners can learn to do.

Martha Cannon is an RCVS Recognised Specialist in Feline Medicine and co-director at the Oxford Cat Clinic, a first opinion and medical referral cat-only clinic in Oxford (www.oxfordcatclinic.co.uk).  She is also a trustee-director of International Cat Care (formerly Feline Advisory Bureau) and the International Society of Feline Medicine (ISFM), and is a frequent speaker at international and national veterinary meetings. She has been voted Central Vet Society Speaker of the year for 2014 and Webinar Vet Best Speaker of 2013 for her delivery of presentations that combine up to date insights into common feline medical problems with practical advice that can be readily applied in practice.

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