![]() Parapneumonic effusions are classified into three categories ( 3). The incidence of parapneumonic effusion of varying severity in human patients is reported to be up to 40–60%. Parapneumonic effusion is defined as the accumulation of free fluid in the pleural space in association with a simultaneous diagnosis of bacterial pneumonia. Reportedly, the two most common types of bacterial pneumonia in dogs are CAP and AP ( 2). Classification of pneumonia usually is based on anatomic location (lung parenchyma or bronchi), or underlying mechanisms associated with infection: aspiration pneumonia (AP), community-acquired pneumonia (CAP), hematogenous spread of bacteria, foreign body, or immunodeficiency. Furthermore, the outcome of dogs with and without parapneumonic effusion appears to be similar.īacterial pneumonia is defined as inflammation of the pulmonary parenchyma secondary to a bacterial infection ( 1). Four of these dogs (4/44 9%) had thoracocentesis performed, displaying a modified transudate (2) or septic exudate (2).Ĭonclusions: Although parapneumonic effusion in dogs with a presumptive diagnosis of bacterial pneumonia appears to be rather common (33.8%), thoracocentesis or chest tube placement was rarely performed. Results: One hundred and thirty dogs were included in the study, of which 44 dogs (33.8%) developed a parapneumonic effusion. Signalment, clinical findings, and outcome were recorded. Patients diagnosed with parasitic or other non-bacterial inflammatory pneumonia or with pulmonary neoplasia were excluded. Bacterial pneumonia was presumptively diagnosed based on compatible clinical signs and findings thoracic radiographs compatible with bacterial bronchopneumonia and either increased serum C-reactive protein (CRP) levels, a positive bronchoalveolar lavage culture or a positive clinical evolution in response to antibiotic therapy. Methods: Medical records were searched for dogs with a presumptive diagnosis of bacterial pneumonia from 2017 to 2021 at the Liege university teaching hospital. Objective: To screen the occurrence of parapneumonic effusion in dogs. ![]() Department of Small Animal Clinical Science, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium.Priscilla Burnotte * Nicolas Graziano Kris Gommeren ![]()
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