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Canadian Veterinary Journal 2020-Aug

Pulsus alternans in a critically ill dog hospitalized for xylitol toxicity

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Nolan Chalifoux
Anthony Carr

Keywords

Abstract

A 2-year-old spayed female Great Pyrenees cross dog was presented following the consumption of pure xylitol sweetener. Blood tests revealed hepatocellular leakage and cholestasis, hyperlactatemia, thrombocytopenia, and prolonged prothrombin and activated partial thromboplastin times. Thoracic radiographs on day 2 of hospitalization were consistent with pulmonary hemorrhage. Prior to death, the dog developed pulsus alternans suggestive of myocardial dysfunction secondary to severe systemic inflammation. This is the first report of pulsus alternans in a critically ill dog prior to clinical deterioration and death. This is also the first documentation of pulsus alternans with a high-definition oscillometric device. Key clinical message: Increased recognition of pulsus alternans and its potential implications in veterinary medicine may contribute to the identification of cardiovascular complications associated with systemic disease.

Pouls alternant chez un chien critiquement malade hospitalisé pour toxicité au xylitol. Une chienne Grand Pyrénées croisée stérilisée âgée de 2 ans a été présentée à la suite de la consommation de l’édulcorant xylitol pur. Des tests sanguins ont révélé une fuite hépatocellulaire et une cholestase, une hyperlactatémie, une thrombocytopénie et des temps de prothrombine et de thromboplastine partielle activée allongés. Des radiographies thoraciques au jour 2 de l’hospitalisation étaient conformes avec une hémorragie pulmonaire. Avant le décès, le chien développa un pouls alternant suggestif de dysfonction myocardique secondaire à une inflammation systémique sévère. Ceci constitue le premier rapport de pouls alternant chez un chien critiquement malade antérieur à une détérioration clinique et la mort. Il s’agit également de la première documentation d’un pouls alternant avec un instrument oscillométrique à haute définition.Message clinique clé :Une augmentation de la reconnaissance de pouls alternant et ses implications potentielles en médecine vétérinaire pourraient contribuer à l’identification de complications cardiovasculaires associées à des maladies systémiques.(Traduit par Dr Serge Messier).

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