Severe hypercapnia associated with a chemodectoma causing profound tracheal narrowing in a cat

Abstract

An 11-year-old, domestic short-haired cat presented out-of-hours with a 1-day history of dyspnoea and open-mouthed breathing. Ninety minutes after arrival, the cat acutely deteriorated. Butorphanol (0.2 mg/kg) was administered intravenously...