Atropine-induced atrial bigeminy during general anesthesia in a Cocker Spaniel dog
2015
Suh, S.I., Dasom Animal Medical Center, Busan, Republic of Korea | Kim, S.E., Dasom Animal Medical Center, Busan, Republic of Korea | Choi, R., Dasom Animal Medical Center, Busan, Republic of Korea | Hyun, C., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea
A 12-year-old female Cocker Spaniel (7.5 kg of body weight) was presented for resection of a mammary gland tumor. During surgery, the heart rate was remarkably decreased due to a second-degree type I atrioventricular block. Atropine (0.05 mg/kg) was administered to increase the heart rate. Although the heart rate was elevated, atrial bigeminy occurred and persisted until the dog fully recovered from general anesthesia. These results highlight the possibility of atrial bigeminy caused by atropine administration during anesthesia.
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