Key result
Permanent pacemaker implantation successfully resolved swallowing-induced situational syncope in a 14-year-old dog, with no further syncopal episodes observed over 7 months of follow-up.
Why the study?
Does permanent pacemaker implantation prevent swallowing-induced syncope in a dog?
Case Report (n=1)
No
Does permanent pacemaker implantation prevent swallowing-induced syncope in a dog?
Permanent pacemaker implantation can be an effective treatment for swallowing-induced situational syncope in dogs, similar to its use in humans.
Supports pacemaker use for canine swallowing syncope; leaves open translation to humans and larger cohorts.
A 14-year-old intact male West Highland White Terrier weighing 6.9 kg was admitted to the Tokyo University of Agriculture and Technology Animal Medical Center with the complaint of syncope after showing signs of nausea during feeding. Sinus arrest induced by deglutition was confirmed using a Holter electrocardiography test. However, the clinical symptoms significantly improved after implantation of a permanent pacemaker. Seven months after implantation, the dog died from acute pancreatitis, a cause unrelated to the syncope. Immediately after its death, the heart, lungs, gastrointestinal tract, and other organs were dissected and examined histopathologically. The brain was also examined using magnetic resonance imaging. Examination results led to the diagnosis of swallowing-induced situational syncope.
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Fukushima et al. (2018) conducted a case report in Swallowing-induced situational syncope (n=1). Permanent pacemaker implantation was evaluated on Resolution of syncope. Permanent pacemaker implantation successfully resolved swallowing-induced situational syncope in a 14-year-old dog, with no further syncopal episodes observed over 7 months of follow-up.
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