Peer-reviewed veterinary case report
Markers linked to lung bleeding in dogs with leptospirosis
By Sonderegger, Franziska et al.·Published in Journal of veterinary internal medicine·2021·Department Clinical Veterinary Medicine·View original on PubMed →
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Original publication title: Association of markers of endothelial activation and dysfunction with occurrence and outcome of pulmonary hemorrhage in dogs with leptospirosis.
- Species:
- dog
Plain-English summary
A group of dogs with leptospirosis, a serious infection, showed signs of severe lung bleeding, known as pulmonary hemorrhage syndrome (LPHS). Researchers found that certain blood markers, like soluble intercellular adhesion molecule 1 (sICAM-1) and vascular endothelial growth factor (VEGF), were significantly higher in dogs with LPHS compared to those without it. These markers also helped predict which dogs were more likely to have a severe outcome. Unfortunately, dogs with higher levels of these markers were more likely to not survive. This study highlights the importance of monitoring these blood markers in dogs diagnosed with leptospirosis to assess their risk for serious complications.
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Abstract
BACKGROUND: Endothelial dysfunction might contribute to the development of leptospiral pulmonary hemorrhage syndrome (LPHS). HYPOTHESIS: Serum concentrations of markers of endothelial activation and dysfunction are higher in dogs with leptospirosis and correlate with the occurrence of LPHS and a higher case fatality rate. ANIMALS: Clinically healthy dogs (n = 31; 10/31 dogs confirmed healthy based on no detected abnormalities on blood work), dogs with leptospirosis with LPHS (n = 17) and without LPHS (n = 15), dogs with acute kidney injury not due to leptospirosis (AKI-nL, n = 34). METHODS: Observational study. Serum concentrations of soluble intercellular adhesion molecule 1 (sICAM-1), vascular endothelial growth factor (VEGF), and angiopoietin-2 (Ang-2) at admission were compared between groups. Correlations with outcome and the accuracy to predict LPHS were examined. RESULTS: Soluble intercellular adhesion molecule (sICAM-1), VEGF, and Ang-2 concentrations were higher in dogs with AKI-nL (sICAM-1 34.7 ng/mL, interquartile range [IQR] = 24.4-75.5; VEGF 43.1 pg/mL, IQR = 12.3-79.2; Ang-2 8.5 ng/mL, IQR = 6.2-12.3), leptospirosis without LPHS (sICAM-1 45.1 ng/mL, IQR = 30.6-59.0; VEGF 32.4 pg/mL, IQR = 12.5-62.6; Ang-2 9.6 ng/mL, IQR = 6.9-19.3), and LPHS (sICAM-1 69.7 ng/mL, IQR = 42.1-89.1; VEGF 51.8 pg/mL, IQR = 26.3-96.7; Ang-2 8.0 ng/mL, IQR = 5.6-12.2) compared to controls (P < .001). In dogs with leptospirosis, VEGF and sICAM-1 were higher in nonsurvivors (sICAM-1 89.4 ng/mL, IQR = 76.5-101.0; VEGF 117.0 pg/mL, IQR = 90.3-232.4) than survivors (P = .004) and sICAM-1 predicted the development of LPHS. CONCLUSIONS: Soluble intercellular adhesion molecule 1, VEGF, and Ang-2 do not discriminate leptospirosis from AKI-nL. In dogs with leptospirosis, sICAM-1 and VEGF predict outcome and sICAM-1 might identify dogs at risk for LPHS.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34076314/