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J Vet Cardiol. 2017 Jun;19(3):283-286. doi: 10.1016/j.jvc.2017.03.006. Epub 2017 May 26.

Conversion of atrial dissociation with lidocaine in a dog.

Author information

1
Department of Clinical Studies, University of Pennsylvania, 3907 Delancey St., Philadelphia, PA 19104, USA.
2
Department of Clinical Studies, University of Pennsylvania, 3907 Delancey St., Philadelphia, PA 19104, USA. Electronic address: vraphael@upenn.edu.

Abstract

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.

KEYWORDS:

Anesthesia; Arrhythmia; Canine; Supraventricular

PMID:
28566246
DOI:
10.1016/j.jvc.2017.03.006
[Indexed for MEDLINE]

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