Prolonged reflex bradycardia after occlusion of patent ductus arteriosus with an Amplatz canine duct occluder in a dog

Ro, Woong-Bin; Kang, Min-Hee; Lee, Chang-Min; Kim, Seung-Gon; Park, Hee-Myung

doi:2017.57.1.51

Korean J Vet Res > Volume 57(1); 2017 > Article

Case report

Korean Journal of Veterinary Research 2017;57(1):51-54.
DOI: https://doi.org/10.14405/kjvr.2017.57.1.51 Published online April 27, 2017.

Prolonged reflex bradycardia after occlusion of patent ductus arteriosus with an Amplatz canine duct occluder in a dog

Woong-Bin Ro, Min-Hee Kang, Chang-Min Lee, Seung-Gon Kim, Hee-Myung Park

Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University

Abstract

A 9-month-old intact male Maltese dog (1.52 kg) was diagnosed with a patent ductus arteriosus (PDA). Transcatheter occlusion of the PDA was performed by using the Amplatz canine duct occluder (ACDO). After occlusion, reflex bradycardia occurred and lasted for at least 15 h with normal systolic arterial pressure and slightly increased diastolic arterial pressure. The bradycardia slowly resolved, and the heart rate was normal in re-examinations after 7 and 30 days. This is the first case of reflex bradycardia after ACDO implantation, in which the bradycardia continued for a long time, even after recovery from anesthesia.

Key Words: Amplatz canine duct occluder, Branham-sign, patent ductus arteriosus, reflex bradycardia