Why does Aspiration Pneumonia (AP) develop?
Dogs (and cats) with Megaesophagus are prone to developing aspiration pneumonia because of their tendency to regurgitate into the back of their throat. The fluid/food and/or mucous/phlegm then is breathed into (aspirated) into the trachea, entering the lungs and causing infection. Causes of Aspiration Pneumonia Esophageal disorders, dysfunctional swallowing reflex, diseases of larynx (ex: laryngeal paralysis) or laryngeal surgery, mouth & throat disorders (Oropharyngeal), chronic vomiting, polyneuropathy, polymyopathy, accidental consumption (medications), brachycephalic syndrome & cleft palate. Treatment for Aspiration Pneumonia While the regurgitation and anorexic symptoms that Megaesophagus often present can be difficult to manage, it is imperative to realize that it is not Megaesophagus that takes our dogs. The real killer is most often Aspiration Pneumonia, followed by malnutrition due to both the actual regurgitation plus anorexia. Food and liquid particles are easily sucked into
