Conversion of atrial dissociation with lidocaine in a dog

A 3-year-old healthy dog was presented for abdominal surgery following ingestion of razor blades. An electrocardiogram revealed a regular sinus bradycardia with normal P waves at a heart rate of 45 bpm. In addition, low-amplitude positive deflections (p′ waves) were visualized at a regular interval...

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Bibliographic Details
Published in:Journal of veterinary cardiology 2017-06, Vol.19 (3), p.283-286
Main Authors: Thorn, C.L., Vezina-Audette, R., Gelzer, A.R.
Format: Article
Language:English
Subjects:
Abdomen - surgery
Anesthesia
Animals
Arrhythmia
Atrial Fibrillation - diagnosis
Atrial Fibrillation - drug therapy
Atrial Fibrillation - veterinary
Canine
Dog Diseases - diagnosis
Dog Diseases - drug therapy
Dogs
Electrocardiography - veterinary
Foreign Bodies - surgery
Foreign Bodies - veterinary
Heart Atria
Heart Rate
Lidocaine - therapeutic use
Male
Supraventricular
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Description
Summary:A 3-year-old healthy dog was presented for abdominal surgery following ingestion of razor blades. An electrocardiogram revealed a regular sinus bradycardia with normal P waves at a heart rate of 45 bpm. In addition, low-amplitude positive deflections (p′ waves) were visualized at a regular interval and rapid rate of 250 bpm, dissociated from the normal sinus P waves. A tentative diagnosis of atrial dissociation was proposed. Administration of lidocaine abolished the p′ waves. This case describes atrial dissociation observed following premedication that was successfully terminated using lidocaine in a healthy dog.
ISSN:1760-2734
1875-0834
DOI:10.1016/j.jvc.2017.03.006