Outcomes, including death, in dogs with pneumothorax following nasogastric feeding tube misplacement in the tracheobronchial tree: 13 cases (2017-2022).

Objective: Complications of feeding tube placement are uncommon, but life-threatening pneumothorax has been reported in human and veterinary patients during feeding tube placement. This article describes the development of pneumothorax and the outcome associated with misplacement of nasogastric (NG) tubes in the tracheobronchial tree in 13 dogs.

Animals: 13 dogs being treated for various medical conditions that had NG tubes placed in 4 hospitals.

Interleukin-1β, tumour necrosis factor-α and lipopolysaccharide induce C-type natriuretic peptide from canine aortic endothelial cells.

The N-terminal portion of pro C-type natriuretic peptide (NT-pCNP) has shown promise as a biomarker for sepsis in humans and dogs, however the mechanism of NT-pCNP production in dogs is unknown. Canine aortic endothelial cells were stimulated with lipopolysaccharide, lipoteichoic acid, peptidoglycan, TNF-α, IL-1β, IL-6, IL-10, IL-21, CXCL-8, IFN-γ, VEGF-A or control (PBS), and NT-pCNP production was measured. Lipopolysaccharide, TNF-α, and IL-1β significantly stimulated NT-pCNP production in a dose and time dependent manner; IL-1β resulted in the greatest NT-pCNP concentrations.