The purpose of this study was to describe the frequency of arrhythmias detected in unsedated feline patients from general practice settings. A total 10,638 feline electrocardiograms (ECGs) were retrospectively collected of which 9440 met the inclusion criteria. Recordings were evaluated by a board-certified cardiologist. If an arrhythmia was present in the ECG tracing, the cardiologist categorized the arrhythmia using pre-established keywords. At least one arrhythmia was observed in 249 cases (2.64%, 95% confidence interval (CI): 2.34–2.98, 249/9440), with the most common arrhythmia encountered being ventricular premature complexes (1.63%, 95% CI: 1.39%–1.91%, 154/9440). Ragdoll cats had the highest odds of arrhythmia (odds ratio (OR): 3.17, 95% CI: 1.43–6.17, P=0.036). Both geriatric (Age: 13+ years, OR: 1.70, 95% CI: 1.24–2.34, P=0.013) and senior (Age: 10–13 years, OR: 1.68, 95% CI: 1.19–2.37, P=0.003) cats had higher odds of having an arrhythmia than adult cats. The odds of male cats having an arrhythmia were slightly higher than female (OR: 1.36, 95% CI: 1.06–1.76, P=0.018). Of the 9440 ECGs included in this study, at least one arrhythmia was detected in 249 distinct cases. Arrhythmias were more common in older cats, male cats and the Ragdoll cat breed. While it is important to note that the presence of an arrhythmia alone does not always indicate the presence of heart disease, further research on the association between breed cardiac health is needed.

中文翻译：

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9440 只猫科动物心电图中检测到的心律失常频率（按品种、年龄和性别划分）

本研究的目的是描述在一般医疗环境中未使用镇静剂的猫科动物患者中检测到的心律失常的频率。回顾性收集了总共 10,638 份猫科动物心电图 (ECG)，其中 9440 份符合纳入标准。记录由经过委员会认证的心脏病专家进行评估。如果心电图追踪中存在心律失常，心脏病专家会使用预先建立的关键字对心律失常进行分类。 249 例患者中至少观察到一种心律失常（2.64%，95% 置信区间 (CI)：2.34–2.98，249/9440），最常见的心律失常是室性早搏（1.63%，95% CI：1.39%） –1.91%, 154/9440)。布偶猫发生心律失常的几率最高（比值比 (OR)：3.17，95% CI：1.43–6.17，P=0.036）。老年人（年龄：13 岁以上，OR：1.70，95% CI：1.24–2.34，P=0.013）和老年人（年龄：10–13 岁，OR：1.68，95% CI：1.19–2.37，P=0.003 ）猫比成年猫有更高的心律失常几率。公猫出现心律失常的几率略高于母猫（OR：1.36，95% CI：1.06–1.76，P=0.018）。在本研究纳入的 9440 个心电图中，在 249 个不同病例中至少检测到一种心律失常。心律失常在老年猫、公猫和布偶猫品种中更为常见。虽然需要注意的是，仅存在心律失常并不总是表明存在心脏病，但需要进一步研究品种心脏健康之间的关联。