Servicio de Medicina Interna Equina, Departamento de Medicina y Cirugía Animal, Faculty of Veterinary Sciences, Universidad Cardenal Herrera CEU, CEU Universities, Valencia, Spain.
Servicio de Cardiología, Hospital Clínico Veterinario, Universidad Cardenal Herrera CEU, CEU Universities, Valencia, Spain.
J Vet Intern Med. 2020 Sep;34(5):2101-2108. doi: 10.1111/jvim.15795. Epub 2020 Jul 8.
Comparisons between smartphone ECG (SpECG) recordings obtained from the right and left sides of the thorax have not been reported in animals.
To evaluate the screening potential of a SpECG obtained from both sides of the thorax and to compare the degree of agreement between the SpECG and a reference ECG (rECG) for measurement of the duration of baseline electrical deflections recorded over both sides of the thorax.
Fifty horses admitted to the equine hospital, university-owned horses, and horses from an endurance riding facility.
Prospective observational study. Simultaneous rECG and SpECG tracings were recorded on both sides of the thorax and evaluated by 2 experienced observers for interpretability, presence and classification of arrhythmias, and duration of deflections of the electrical baseline.
Fifteen (15/50) horses had spontaneous arrhythmias. Excellent agreement was found between the 2 devices (κ = 0.91; P < .001; 95% confidence interval [CI] 0.79-1.03) for the detection of arrhythmias. Significantly more P waves were of diagnostic quality from the right side (20 versus 5, P = .001) and significantly more QRS and QT intervals were of diagnostic quality from the left side (66 versus 38 and 62 versus 34, respectively, P < .001). Substantial agreement for the duration of deflections between devices only was observed for the QRS interval (SpECG left).
It is important to obtain SpECG tracings from both sides of the thorax in horses. The SpECG is a useful stall-sidearrhythmia-screening tool for some common arrhythmias in horses.
在动物中，尚未有关于从胸部左右两侧获得的智能手机心电图（SpECG）记录进行比较的报道。
评估从胸部两侧获得的 SpECG 的筛查潜力，并比较 SpECG 与参考心电图（rECG）在测量记录于胸部两侧的基线电偏移的持续时间方面的一致性程度。
50 匹入住马医院的马、大学拥有的马和耐力骑乘设施的马。
前瞻性观察研究。在胸部两侧同时记录 rECG 和 SpECG 描记图，并由 2 名有经验的观察者评估可解释性、心律失常的存在和分类以及电基线偏移的持续时间。
15 匹（15/50）马出现自发性心律失常。两种设备之间存在极好的一致性（κ=0.91；P<0.001；95%置信区间 [CI] 0.79-1.03），用于检测心律失常。右侧的 P 波质量更好（20 比 5，P=0.001），左侧的 QRS 和 QT 间隔质量更好（66 比 38 和 62 比 34，分别为 P<0.001）。两种设备之间仅在 QRS 间隔的偏移持续时间上观察到高度一致（SpECG 左侧）。
在马中，重要的是要从胸部两侧获取 SpECG 描记图。SpECG 是一种有用的马厩侧心律失常筛查工具，可用于一些常见的马心律失常。
