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Acromegaly in 14 cats.

M E Peterson1, R S Taylor, D S Greco

  • 1Department of Medicine, Cornell University Medical College, New York, New York.

Journal of Veterinary Internal Medicine
|July 1, 1990
PubMed
Summary
This summary is machine-generated.

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Acromegaly in cats is linked to pituitary tumors causing severe health issues like diabetes and organ enlargement. Treatments, including radiotherapy and octreotide, showed limited success in lowering growth hormone levels.

Area of Science:

  • Veterinary Medicine
  • Endocrinology
  • Oncology

Background:

  • Acromegaly, a condition characterized by excessive growth hormone production, is increasingly recognized in domestic animals.
  • In cats, acromegaly is typically caused by a pituitary adenoma, leading to secondary diabetes mellitus and insulin resistance.

Purpose of the Study:

  • To describe the clinical presentation, diagnosis, treatment, and outcomes of acromegaly in a cohort of cats.
  • To evaluate the efficacy of current treatment modalities for feline acromegaly.

Main Methods:

  • Retrospective case series of 14 cats diagnosed with acromegaly.
  • Clinical data collection including physical examination, laboratory results, diagnostic imaging (CT scans), and treatment records.
  • Serum growth hormone (GH) concentrations were measured to confirm diagnosis.

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Main Results:

  • All 14 cats exhibited elevated serum GH concentrations. The most common initial signs were polyuria, polydipsia, and polyphagia, associated with severe diabetes mellitus and insulin resistance.
  • Organomegaly (liver, heart, kidneys, tongue), cardiomyopathy, nephropathy, arthropathy, and neurological signs were frequently observed.
  • Treatment with radiotherapy and/or octreotide had minimal impact on serum GH levels. Median survival time was 20.5 months, with most cats euthanized due to complications like renal or heart failure.

Conclusions:

  • Feline acromegaly is a serious condition with significant comorbidities, primarily driven by pituitary adenomas.
  • Current treatments offer limited efficacy in controlling GH levels and improving outcomes.
  • Further research into more effective therapeutic strategies is warranted to improve the prognosis for cats with acromegaly.