Canine case of swallowing syncope that improved after pacemaker implantation

Ryuji Fukushima, Toshiki Araie, Naoaki Itou, Takae Kawaguchi, Shusaku Yamada, Aritada Yoshimura, Seijirow Goya, Kazumi Shimada, Tsuyoshi Uchide, Miori Kishimoto, Noboru Machida

Research output: Contribution to journalComment/debate

4 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)460-464
Number of pages5
JournalJournal of Veterinary Medical Science
Issue number3
Publication statusPublished - 2018
Externally publishedYes


  • Dog
  • Permanent pacemaker implant
  • Swallowing syncope


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