Table 8.8 Summary: Causes of episodic collapse<

Table 8.8 Summary: Causes of episodic collapse<

Cardiovascular

At rest

Vaso-vagal syncope

Severe valvular heart disease, usually in association with CHF

Tachydysrhythmias<

Bradydysrhythmias, e.g. extreme 20AVB, 30AVB, sinus arrest, sinus bradycardia

Pericardial disease

Severe myocardial disease

At exercise

Severe valvular heart disease

Tachydysrhythmias

Pericardial disease

Severe myocardial disease

Neurological

Narcolepsy

Seizures

Epilepsy

Toxins

Viral

Trauma

Cervical fractures and spinal cord trauma

Cervical malformation and spinal cord trauma

Musculo-skeletal

Rhabdomyolysis

Acute laminitis

Back pain

Bilateral fractures

Psychological

Does not want to be groomed

Does not want to be saddled

Does not want to be ridden