Laryngeal paralysis causes progressive respiratory obstruction in older large breeds. Surgical treatment (arytenoid lateralization) provides significant welfare improvement in most cases.
Laryngeal paralysis causes insidious but progressive respiratory welfare harm. Early signs — mild stridor, reduced exercise tolerance, and voice change — are often attributed to aging rather than disease. As the condition progresses, even moderate activity causes significant respiratory distress, and hot weather creates welfare emergencies as the dog cannot cool effectively through panting. Exercise restriction becomes necessary to prevent respiratory crisis — itself a welfare impact that limits normal activity.
Acute laryngeal crisis — typically triggered by heat, stress, or overexertion — is a welfare emergency. Affected dogs develop severe respiratory distress, cyanosis, and hyperthermia. Emergency cooling, sedation, and oxygen supplementation are welfare-critical while preparing for surgical intervention. Most dogs with well-timed surgical treatment return to comfortable, active lives.