What is canine laryngeal paralysis? Canine laryngeal paralysis occurs when the arytenoid cartilages and vocal cords do not abduct properly during inspiration, causing: stridor inspiratory dyspnoea exercise intolerance cyanosis respiratory crises. In this context, the silicone laryngeal stent may be a minimally invasive alternative, useful in both emergency situations and chronic management or post-surgical laryngeal stenosis. In a series of seven dogs, the placement of a sili