Pacemaker Implantation in a Cat with Paroxysmal Third-degree Atrioventricular Block

Abstract

A male mongrel cat (age 8 years and 5 months) was referred to our clinic because of syncopal episodes. Electrocardiography revealed paroxysmal third-degree atrioventricular block. Because syncopal episodes became increasingly frequent over a period of 5 months, permanent pacemaker implantion was performed. One year after the operation, no further syncopes had occurred. To the best of our knowledge, this is the first report in Japan of long-term observation of pacemaker implantation in a cat.