Radiographie, epidemiologie, and clinical aspects of simultaneous pleural and peritoneal effusions in dogs and cats: 48 cases (1982-1991)

Phillip F. Steyn From the Department of Radiological Health Sciences (Steyn) and Department of Clinical Sciences (Wittum), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80526.

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 BVSc, MS
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Thomas E. Wittum From the Department of Radiological Health Sciences (Steyn) and Department of Clinical Sciences (Wittum), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80526.

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 MS, PhD

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Summary:

In this study, we found that the rate at which radiographically diagnosed simultaneous pleural and peritoneal effusions (double effusions [de]) developed was highest in dogs and cats with infectious causes of pleuritis and/or peritonitis and in those with pancreatitis. However, de were observed more frequently in dogs and cats with neoplastic and cardiovascular diseases. Nonneoplastic liver disease was also documented as a cause of de in the population of this study. Frequency of de was increased in males and in animals > 6 years old. The finding of simultaneous pleural and peritoneal effusions can be considered an indicator of disease severity, and warrants a poor to grave prognosis.

Summary:

In this study, we found that the rate at which radiographically diagnosed simultaneous pleural and peritoneal effusions (double effusions [de]) developed was highest in dogs and cats with infectious causes of pleuritis and/or peritonitis and in those with pancreatitis. However, de were observed more frequently in dogs and cats with neoplastic and cardiovascular diseases. Nonneoplastic liver disease was also documented as a cause of de in the population of this study. Frequency of de was increased in males and in animals > 6 years old. The finding of simultaneous pleural and peritoneal effusions can be considered an indicator of disease severity, and warrants a poor to grave prognosis.

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