Ventricular rate control using a novel vagus nerve stimulating system in a dog with chronic atrial fibrillation

A 4-year-old, intact male Dogue de Bordeaux dog with congenital valvular pulmonic stenosis, tricuspid valve dysplasia, and chronic atrial fibrillation underwent ultrasound-guided balloon valvuloplasty in addition to pharmacological treatment. Owner compliance to prescribed pharmacotherapy proved ver...

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Bibliographic Details
Published in:Journal of veterinary cardiology 2008-12, Vol.10 (2), p.147-154
Main Authors: Ohad, Dan G., Sinai, Yitzhak, Zaretsky, Asaph, Shofti, Rona
Format: Article
Language:English
Subjects:
Animals
Atrial Fibrillation - therapy
Atrial Fibrillation - veterinary
Bordeaux dog
Canine
Catheterization - methods
Catheterization - veterinary
Dogs
Dogue de Bordeaux
Electric Stimulation - methods
Fatal Outcome
Heart Failure - veterinary
Male
Ultrasound-guided valvuloplasty
Vagal stimulation
Vagus Nerve - physiology
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Summary:A 4-year-old, intact male Dogue de Bordeaux dog with congenital valvular pulmonic stenosis, tricuspid valve dysplasia, and chronic atrial fibrillation underwent ultrasound-guided balloon valvuloplasty in addition to pharmacological treatment. Owner compliance to prescribed pharmacotherapy proved very poor, and concerns developed regarding the ability to successfully control heart rate and symptoms using drug therapy alone. These concerns were addressed by the implantation of a novel vagal stimulation system that was programmed to prevent a ventricular rate of >145 bpm. Consequently, post-operative ventricular response rate decreased from up to 250 to 140 bpm. Successful ventricular rate control was maintained for 291 days post-operatively, following which euthanasia was elected by the owner due to persistent right-sided congestive heart failure. To the authors' knowledge, this is the first report of successful continuous rate control using a vagal stimulating system in a closed-chest, client-owned dog with chronic atrial fibrillation secondary to spontaneously occurring organic heart disease.
ISSN:1760-2734
1875-0834
DOI:10.1016/j.jvc.2008.09.004