The Brody effect induced by premature ventricular complexes in the ovine heart
The QRS response of the electrocardiogram to bleeding has been a source of interest to the physiologist for more than a century. Studies in the dog, cat and chicken have shown a reduction in QRS amplitude in response to bleeding. This effect has been explained by the so-called Brody effect, in w...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AOSIS
2009-09-01
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| Series: | Onderstepoort Journal of Veterinary Research |
| Online Access: | https://ojvr.org/index.php/ojvr/article/view/27 |
| _version_ | 1819051838092083200 |
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| author | J. Ker E.C. Webb D. van Papendorp |
| author_facet | J. Ker E.C. Webb D. van Papendorp |
| author_sort | J. Ker |
| collection | DOAJ |
| description | The QRS response of the electrocardiogram to bleeding has been a source of interest to the physiologist for more than a century. Studies in the dog, cat and chicken have shown a reduction in QRS amplitude in response to bleeding. This effect has been explained by the so-called Brody effect, in which the intraventricular mass of blood acts as a conducting medium, augmenting radial conduction, thus resulting in the subsequent reduction in QRS amplitude in conditions where the intraventricular mass of blood is reduced. The aim of this study was to evaluate whether the Brody effect will be present in the ovine heart and, furthermore, to evaluate if the right and left ventricles will demonstrate the same QRS change if the Brody effect is indeed present. This study clearly demonstrated that the Brody effect is present in the ovine heart. Furthermore, two unique aspects emanating from this study are firstly the fact that this is the first study to show that premature ventricular complexes are able to induce the Brody effect and, secondly that there is a very clear difference in the response of the right and the left ventricles when the Brody effect is induced in the ovine heart. |
| first_indexed | 2024-12-21T12:10:18Z |
| format | Article |
| id | doaj.art-b17991adc6be4092921baa116bcd9174 |
| institution | Directory Open Access Journal |
| issn | 0030-2465 2219-0635 |
| language | English |
| last_indexed | 2024-12-21T12:10:18Z |
| publishDate | 2009-09-01 |
| publisher | AOSIS |
| record_format | Article |
| series | Onderstepoort Journal of Veterinary Research |
| spelling | doaj.art-b17991adc6be4092921baa116bcd91742022-12-21T19:04:35ZengAOSISOnderstepoort Journal of Veterinary Research0030-24652219-06352009-09-0176444344810.4102/ojvr.v76i4.2720The Brody effect induced by premature ventricular complexes in the ovine heartJ. KerE.C. WebbD. van PapendorpThe QRS response of the electrocardiogram to bleeding has been a source of interest to the physiologist for more than a century. Studies in the dog, cat and chicken have shown a reduction in QRS amplitude in response to bleeding. This effect has been explained by the so-called Brody effect, in which the intraventricular mass of blood acts as a conducting medium, augmenting radial conduction, thus resulting in the subsequent reduction in QRS amplitude in conditions where the intraventricular mass of blood is reduced. The aim of this study was to evaluate whether the Brody effect will be present in the ovine heart and, furthermore, to evaluate if the right and left ventricles will demonstrate the same QRS change if the Brody effect is indeed present. This study clearly demonstrated that the Brody effect is present in the ovine heart. Furthermore, two unique aspects emanating from this study are firstly the fact that this is the first study to show that premature ventricular complexes are able to induce the Brody effect and, secondly that there is a very clear difference in the response of the right and the left ventricles when the Brody effect is induced in the ovine heart.https://ojvr.org/index.php/ojvr/article/view/27 |
| spellingShingle | J. Ker E.C. Webb D. van Papendorp The Brody effect induced by premature ventricular complexes in the ovine heart Onderstepoort Journal of Veterinary Research |
| title | The Brody effect induced by premature ventricular complexes in the ovine heart |
| title_full | The Brody effect induced by premature ventricular complexes in the ovine heart |
| title_fullStr | The Brody effect induced by premature ventricular complexes in the ovine heart |
| title_full_unstemmed | The Brody effect induced by premature ventricular complexes in the ovine heart |
| title_short | The Brody effect induced by premature ventricular complexes in the ovine heart |
| title_sort | brody effect induced by premature ventricular complexes in the ovine heart |
| url | https://ojvr.org/index.php/ojvr/article/view/27 |
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