Cardiac Arrhythmias in Horses

Loon, Gunther van

doi:10.1016/j.cveq.2018.12.004

Cited by 46 publications

(69 citation statements)

References 32 publications

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“…The P wave could be buried in the preceding T wave, and the T wave of the premature complex could show opposite polarity to the QRS complex. 17 Ventricular premature complex was defined as a premature QRS and T complex with a configuration that differed from that of the normal sinus QRS and T complex. Most commonly, ventricular premature complexes are followed by a compensatory pause.…”

Section: Ecg Analysismentioning

confidence: 99%

Evaluation of a smartphone‐based electrocardiogram device accuracy in field and in hospital conditions in horses

Albertí

Stucchi

Pesce³

et al. 2020

Veterinary Record Open

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BackgroundDue to compactness and cheapness, smartphone ECG (sECG) could be very useful to equine practitioners. However, previous studies have evaluated the accuracy of sECG in hospitalised horses only. Different conditions in the field could influence the accuracy of the device. The aim of this study is to compare the accuracy of sECG in field and in hospital conditions.MethodsThis is a prospective study. Paired standard base-apex ECG (stECG) and sECG were recorded in hospitalised horses and in subjects examined in field conditions. ECGs were analysed for heart rate and rhythm, presence/type of arrhythmias, presence/duration of artefacts, electrocardiographic waves and interval parameters by a blinded clinician. Statistical analysis evaluated the agreement between stECG and sECG and the differences in the prevalence of artefact in field and hospital conditions.ResultsNineteen (hospital) and 40 (field) paired ECGs were analysed. Agreement between stECG and sECG was found for heart rate and rhythm, evaluation of atrioventricular block and premature complexes, P wave and PQ interval duration, and QRS complex duration and polarity. No differences were found between artefacts recorded in hospital and in field conditions.ConclusionsECG is a feasible tool for evaluation of rhythm in horses and is as accurate in field as in ambulatory conditions.

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Section: Ecg Analysismentioning

confidence: 99%

Evaluation of a smartphone‐based electrocardiogram device accuracy in field and in hospital conditions in horses

Albertí

Stucchi

Pesce³

et al. 2020

Veterinary Record Open

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show abstract

Section: Methodsmentioning

confidence: 99%

“…Sinus arrhythmia was defined as variable RR intervals, and where waxing and waning of the heart rhythm was evident; the QRS complex configuration and the relation between the P wave and the QRS complex were normal [ 23 , 24 ]. Sinoatrial (SA) block was recognized as the absence of the P wave and the QRS complex for a duration of twice the previous PP interval [ 23 , 24 ]. Second-degree atrioventricular (second-degree AV) block was diagnosed if the P wave was not associated with any following QRS complex with a double length of the RR interval [ 3 , 23 , 25 ].…”

Section: Methodsmentioning

confidence: 99%

“…Sinoatrial (SA) block was recognized as the absence of the P wave and the QRS complex for a duration of twice the previous PP interval [ 23 , 24 ]. Second-degree atrioventricular (second-degree AV) block was diagnosed if the P wave was not associated with any following QRS complex with a double length of the RR interval [ 3 , 23 , 25 ]. The supraventricular premature complex was identified as an individual premature complex characterized by the presence of a QRS complex of normal configuration and followed by a non-compensatory pause [ 23 , 25 ].…”

Section: Methodsmentioning

confidence: 99%

“…Second-degree atrioventricular (second-degree AV) block was diagnosed if the P wave was not associated with any following QRS complex with a double length of the RR interval [ 3 , 23 , 25 ]. The supraventricular premature complex was identified as an individual premature complex characterized by the presence of a QRS complex of normal configuration and followed by a non-compensatory pause [ 23 , 25 ]. Supraventricular premature complexes post-exercise were distinguished from sinus arrhythmia when an underlying stable heart rate was interrupted by intermittent premature complexes [ 5 ].…”

Section: Methodsmentioning

confidence: 99%

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Evaluation of Cardiac Arrhythmias before, during, and after Treadmill Exercise Testing in Poorly Performing Standardbred Racehorses

Albertí

Stucchi

Feudo

et al. 2021

Animals

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The incidence of significant arrhythmias in sport horses and knowledge about their exact influence on athletic performance need to be clarified. The aims of the present study are to report the prevalence of cardiac arrhythmias during maximal treadmill exercise in poorly performing Standardbreds, and to investigate the possible relationship of demographic, cardiac and performance indices on premature complexes (PCs). Electrocardiographic Holter recordings before, during and after treadmill exercise testing of 158 poorly performing Standardbreds were analyzed retrospectively. Fifty horses did not have any type of arrhythmia. One hundred and eight horses had at least one type of arrhythmia, such as sinus arrhythmia (8.2%), sinoatrial block (3.2%), second-degree atrioventricular block (33.5%), supraventricular PCs (7.6%), and ventricular PCs (48.1%). A multiple regression analysis showed weak evidence that the occurrence of premature complexes decreases as the minimum heart rate increases, and a tendency for these arrhythmias to increase with increasing age and maximum lactate concentration. Our results suggest that PCs are frequent in poorly performing Standardbred racehorses, but further studies are necessary to clarify their role and clinical significance.

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The Cardiovascular System

Grubb¹,

Gompf²

2006

Manual of Equine Anesthesia and Analgesia

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Cardiac Arrhythmias in Horses

Cited by 46 publications

References 32 publications

Evaluation of a smartphone‐based electrocardiogram device accuracy in field and in hospital conditions in horses

Evaluation of a smartphone‐based electrocardiogram device accuracy in field and in hospital conditions in horses

Evaluation of Cardiac Arrhythmias before, during, and after Treadmill Exercise Testing in Poorly Performing Standardbred Racehorses

The Cardiovascular System

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