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Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples

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Pulmonary abnormalities in dogs with leptospirosis.

B Kohn¹, K Steinicke, G Arndt

¹Small Animal Clinic, Faculty of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany. kohn@vetmed.fu-berlin.de

Journal of Veterinary Internal Medicine

|August 27, 2010

Summary

Pulmonary abnormalities are common in dogs with leptospirosis, impacting outcomes. Lung involvement significantly increases fatality, especially with severe respiratory distress.

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Area of Science:

Veterinary Medicine
Infectious Diseases
Pulmonology

Background:

Leptospirosis is a serious, multi-organ canine disease, primarily affecting the kidneys and liver.
Pulmonary involvement is a recognized but less characterized complication of canine leptospirosis.

Purpose of the Study:

To investigate the prevalence and characteristics of pulmonary abnormalities in dogs diagnosed with leptospirosis.
To correlate clinical and radiological findings with patient outcomes in leptospirosis cases with lung involvement.

Main Methods:

Retrospective review of medical records for 50 dogs diagnosed with leptospirosis.
Diagnosis confirmed via serology (microscopic agglutination test), PCR, and histopathology.
Dogs categorized based on presence and severity of clinical/radiological pulmonary signs and respiratory distress.

Main Results:

Pulmonary abnormalities were detected in 70% of dogs with leptospirosis.
Radiological changes were present in 35 dogs, with 31 experiencing pulmonary distress.
Higher grades of respiratory distress correlated with increased euthanasia rates due to respiratory failure; other deaths resulted from renal failure or sepsis.

Conclusions:

Pulmonary involvement is a frequent and severe complication in canine leptospirosis.
The severity of respiratory distress is a critical factor influencing the case fatality rate.
Early recognition and management of lung complications are vital for improving survival in leptospirosis patients.