PMID: 3212893Nov 1, 1988Paper

Cardiovascular complications of chronic catheterization of the jugular vein in the dog

Veterinary Pathology
G M MesfinD Rosnick

Abstract

Cardiovascular changes associated with indwelling catheters were evaluated in 51 adult beagle dogs catheterized for 4 to 9 weeks. Pathologic changes consistent with traumatic injury were in the vena cava and endocardium of the right atrium of 88% of cannulated dogs. Lesions were characterized by surface denudation and diffuse intimal thickening due to myointimal hyperplasia and deposition of extracellular matrix. Affected intima was lined by hyperplastic, poorly differentiated endothelial cells and contained round to oval cells with characteristics of smooth muscle cells. After 9 weeks, thickened intima was vascularized and composed of spindle-shaped cells and fibrillar stroma. Intimal sclerosis and localized proliferative papillary projections in the vena cava cranial to areas of myointimal hyperplasia occurred infrequently. Traumatic lesions, regardless of location or severity, did not extend below the internal elastic membrane. Inflammatory cellular responses, when present, were minimal. The location, distribution, and morphogenesis of catheter-related cardiovascular lesions distinguishes them from those induced by chemical toxicity or pharmacotoxicity.

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Citations

Sep 1, 1993·Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research·M B DennisR Storb
Mar 17, 2010·Veterinary Anaesthesia and Analgesia·Andrew K ClaudeElizabeth A Riedesel
May 24, 2016·Experimental and Toxicologic Pathology : Official Journal of the Gesellschaft Für Toxikologische Pathologie·Georgina PappasAnke Scultetus
May 5, 2010·Journal of the American Animal Hospital Association·John D MurrayKimberley C E Hawkes

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