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- aggregation classification "A1".
- aggregation creator person.
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- aggregation creator person.
- aggregation date "2012".
- aggregation format "application/pdf".
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- aggregation isPartOf urn:issn:0425-1644.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Veterinary Sciences".
- aggregation title "Oesophageal electrocardiography in healthy horses".
- aggregation abstract "Reasons for performing study: In human medicine, esophageal electrocardiography (ECG) is a well-established technique that magnifies P waves with respect to the QRS complex. Objectives: To investigate the feasibility of esophageal ECG recording and its ability to produce larger P waves compared to base-apex and unipolar recordings. Methods: Bipolar and unipolar ECG were performed using esophageal and surface electrodes. Esophageal ECG was obtained from six different recording configurations at different esophageal depths. Amplitudes of P, Q, R, S and T waves were measured from three different cardiac cycles for each recording configuration and depth. Results: Esophageal ECG was feasible in all horses. For all esophageal recording configurations, significantly larger P waves were recorded from a depth that equaled ‘height of the withers +10 cm’ (HW+10) than from any other depth. P/QRSmagn, the ratio between the P wave and QRS complex magnitudes, was largest for intra-esophageal recordings with an interelectrode distance of 10 cm, at HW+10, where it was significantly larger than base-apex and unipolar recordings. Base-apex recording resulted in significantly smaller P waves than all other recording configurations and significantly smaller P/QRSmagn ratios than all other recording configurations except one combined esophageal-surface recording (E/Slow). Conclusions: Esophageal ECG recording is feasible in horses and effective in magnifying P wave amplitude. Potential relevance: The procedure is promising for diagnosis of supraventricular tachydysrhythmias and might be used in electrophysiological studies and for cardiac pacing.".
- aggregation authorList BK440084.
- aggregation endPage "645".
- aggregation issue "6".
- aggregation startPage "640".
- aggregation volume "44".
- aggregation aggregates 2087091.
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