The Thai Journal of Veterinary Medicine


A fourteen-year-old female neutered Schnauzer was presented to the hospital with multiple syncopal episodes for two weeks. The dog appeared fatigue and sleepy but remained responsive. Clinical examination revealed bradycardia and irregular pulse. Electrocardiography showed sinus rhythm with repetitively long episodes of sinus arrest over 3 seconds, indicating sick sinus syndrome. The dog eventually underwent a transvenous single chamber permanent pacemaker. She was followed up for a month after surgery without recurrent syncope and irregular heart rate.

First Page


Last Page