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Cat Health News Blog

A resource for dedicated cat supporters

Since its start in 2007, Cat Health News has featured the latest information on feline health. The bi-weekly blog is a mix of the most current published research from Winn-funded research and other sources. There are over 570 blog items and more than 1,000 subscribers through the RSS feed.


icon-blogWinn-funded research is specifically noted by the small green cat.

  • Nasopharyngeal Polyps in Cats

    Aug 28, 2008
    Anders, B. B., M. G. Hoelzler, et al. (2008). "Analysis of auditory and neurologic effects associated with ventral bulla osteotomy for removal of inflammatory polyps or nasopharyngeal masses in cats." J Am Vet Med Assoc 233(4): 580-5.

    Inflammatory polyps are non-cancerous masses that develop in the nasopharynx, auditory tube, or middle ear. They are typically visualized within the ear canal or the pharynx. Most common in young cats, they are part of the differential diagnosis for upper respiratory tract signs and otitis. Clinical signs include nasal or otic discharge, swallowing difficulties, head tilt, nystagmus, sneezing, and Horner's syndrome. Treatment options include traction avulsion, and either lateral or ventral bulla osteotomy (VBO). Many authorities consider VBO to be the treatment of choice. Reported complications include Horner's syndrome, nerve deficits, damage to vascular tissues, and auditory damage. To date, information on how these masses affect hearing in cats and whether VBO can affect hearing has not been published. In this prospective case series, 17 cats met full inclusion criteria, and long term follow was available for 15 cats. Using BAER, 6 cats had deafness prior to surgery. No cat experienced a change in presurgical auditory status. Cats with deafness prior to surgery did not regain auditory function. In the immediate post-operative period, 11 cats developed short term Horner's syndrome. Polyp regrowth occurred in 1 cat. The authors conclude that VBO is unlikely to affect hearing in cats, and long term adverse effects, including polyp regrowth, are uncommon.
    >> PubMed Abstract

    Related articles:
    Kudnig, S. T. (2002). "Nasopharyngeal polyps in cats." Clin Tech Small Anim Pract 17(4): 174-7.
    >> PubMed Abstract

    Esterline, M., M. Radlinsky, et al. (2005). "Endoscopic removal of nasal polyps in a cat using a novel approach." J Fel Med Surg 7(2): 121-124.
    >> PubMed Abstract

    deafness nasopharyngeal polyp bulla osteotomy

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