Parameters used to diagnose cardiac disease in snakes, as well as the prevalence of cardiac disease in snakes, is wholly unknown. Snakes in captivity have a sedentary lifestyle and a more restrictive captive environment, which lessens the cardiovascular demand on these animals. In addition, a high tolerance for anaerobic respiration and a low metabolic rate can make clinical signs of cardiac disease difficult to ascertain until the disease is advanced. Studies have shown that the reptile electrocardiogram (ECG) waveform is similar in morphology to mammalian waveforms. Twenty-nine adult corn snakes (Pantherophis guttatus) were sourced from privately owned collections and rescue groups. All snakes were fed whole prey items every 7 days and deemed healthy on physical examination. Snakes were allowed to acclimate to vivariums for 4 hours prior to the study. Ambient temperatures were maintained from 26-30°C (79-86°F). Non-traumatic adhesive ECG pads were applied bilaterally on the lateral...

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