Population
7-year-old female Dalmatian dog (n=1) with primary hypothyroidism
Design
Case_report
Follow-up
24 hours
Key result
Hypothyroidism in a dog was associated with increased parasympathetic activity, resulting in sinus arrhythmia, second-degree sinoatrial block, and altered heart rate variability.
Authors
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Should not change practice in hypothyroid dogs; hypothesis-generating for autonomic effects on canine arrhythmias.
Case Report (n=1)
No
In a dog with primary hypothyroidism, 24-hour Holter monitoring and HRV analysis demonstrated significant parasympathetic dysfunction and sinoatrial block.
Costa et al. (2019) conducted a case report in Primary Hypothyroidism (n=1). Hypothyroidism was evaluated on Heart rate variability and electrocardiographic findings. Hypothyroidism in a dog was associated with increased parasympathetic activity, resulting in sinus arrhythmia, second-degree sinoatrial block, and altered heart rate variability.