Defaecation syncope and pulmonary thromboembolism in a cat
2001
WHITLEY, NT | STEPIEN, RL
A 7‐year‐old male neutered domestic shorthair cat was referred for worsening gastrointestinal and haematologic abnormalities. Physical status deteriorated further despite intravenous crystalloids, blood transfusion and nutritional support. Cardiorespiratory signs developed and the cat died suddenly while straining to defaecate. Diffuse thrombosis, pulmonary thromboembolism, metastatic pancreatic carcinoma and histologic evidence of cardiomyopathy were present at necropsy. This is the first reported case of feline pulmonary thromboembolism associated with defaecation syncope. Predisposing factors for thrombotic disease in this case and aspects of human defaecation syncope are discussed. The risk of clot dislodgement by the Valsalva manoeuvre in patients with a thrombotic tendency is highlighted.
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