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1.
J Small Anim Pract ; 62(2): 145-149, 2021 02.
Article in English | MEDLINE | ID: mdl-33260257

ABSTRACT

OBJECTIVES: Evaluation of a computerised electrocardiogram algorithm compared to the interpretation of a team of board-certified veterinary cardiologists. MATERIALS AND METHODS: This was a cross-sectional retrospective cohort study. A total of 399 electronic canine electrocardiogram recordings screened from 1391 electrocardiograms were enrolled in the study. A panel of seven cardiologists, masked to patient information, evaluated electrocardiograms for the following: P-wave amplitude and duration; PR-interval; R-wave amplitude; QRS duration; heart rate; mean electrical axis; and final overall diagnosis for the detection of arrhythmia and any abnormal electrocardiogram anomaly. RESULTS: The sensitivity of the electrocardiogram algorithm for detecting arrhythmias was 99.7% (95% confidence intervals, CI: 98.5 to 99.9) and the specificity was 99.5% (95% CI: 98.0 to 99.9) compared to the consensus result created by panel of cardiologists. The sensitivity of the algorithm for the detection of any electrocardiogram anomaly, including abnormal measurements, was 71.3% (95% CI: 65.5 to 76.7) and the specificity was 35.1% (95% CI: 27.0 to 43.8) compared to the panel of cardiologists. CLINICAL SIGNIFICANCE: The electrocardiogram algorithm was shown to have high sensitivity for the detection of arrhythmias, but not all electrocardiogram anomalies. The results support the use of this algorithm as a tool to aid in the triage of the electrocardiogram workflow.


Subject(s)
Dog Diseases , Electrocardiography , Animals , Arrhythmias, Cardiac/diagnosis , Arrhythmias, Cardiac/veterinary , Computers , Cross-Sectional Studies , Dog Diseases/diagnosis , Dogs , Electrocardiography/veterinary , Retrospective Studies
2.
J Vet Cardiol ; 22: 51-64, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30661842

ABSTRACT

The right ventricular apex has been the traditional site for lead placement in veterinary patients who require permanent cardiac pacing therapy for atrioventricular block and sick sinus syndrome. Implantation of leads in this location is a straightforward procedure that most veterinary cardiologists perform routinely. Pacing at the right ventricular apex, however, has been demonstrated to have long-term deleterious effects on the left ventricular function in numerous patient populations and animal models. Alternative lead placement sites and pacing system configurations have been developed, and the purpose of this review article is not to review the literature or the decision-making process in selecting a specific pacing system but rather to share the experiences of our group with the use of alternative pacing implantation techniques for veterinary patients in need of permanent cardiac pacing.


Subject(s)
Cardiac Pacing, Artificial/veterinary , Pacemaker, Artificial/veterinary , Animals , Atrioventricular Block/therapy , Atrioventricular Block/veterinary , Cardiac Pacing, Artificial/methods , Heart Ventricles , Sick Sinus Syndrome/therapy , Sick Sinus Syndrome/veterinary
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