Canine dysautonomia is a disorder of the autonomic nervous system, which controls many reflexes and other neurologic functions that the animal does not consciously control. Other components of the nervous system, including central, peripheral, skeletal, and digestive nerves, are also affected. Cases have been reported from both Europe and the United States, where canine dysautonomia has been seen primarily in the Midwest. Signs often include a loss of the pupillary light reflexes, with otherwise normal vision. The eyelid may droop or protrude abnormally, and the position of the eyeball may be abnormal. The dog may experience painful or difficult urination and lose anal sphincter control. Secondary signs such as pneumonia and lethargic behavior may develop. Weight loss may be dramatic. There is no treatment and the condition is ultimately fatal.
OTHER TOPICS IN THIS CHAPTER
Brain, Spinal Cord, and Nerve Disorders of Dogs
The Nervous System of Dogs
Parts of the Nervous System in Dogs
Nervous System Disorders and Effects of Injuries in Dogs
The Neurologic Evaluation of Dogs
Principles of Therapy of the Nervous System in Dogs
Congenital and Inherited Disorders of the Nervous System in Dogs
Disorders of the Peripheral Nerves and Neuromuscular Junction in Dogs
Disorders of the Spinal Column and Cord in Dogs
Dysautonomia in Dogs
Facial Paralysis in Dogs
Central Nervous System Disorders Caused by Parasites in Dogs
Leg Paralysis in Dogs
Meningitis and Encephalitis in Dogs
Motion Sickness in Dogs
Rabies in Dogs
Tick Paralysis in Dogs
