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dc.contributor.author | Ker, James A.![]() |
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dc.date.accessioned | 2010-11-12T10:00:26Z | |
dc.date.available | 2010-11-12T10:00:26Z | |
dc.date.issued | 2010-09 | |
dc.description.abstract | The U wave is still an electrocardiographic deflection of enigmatic origin. Numerous hypotheses on its origin have been formulated, but to date none has been conclusively proven. Recently, a report described the first case of bifid (or notched) U waves. Until then this phenomenon has only been described in the T wave. This is the first report of double U waves—two separate deflections, ascribed to an accessory papillary muscle. HYPOTHESIS: The presence of a double U wave will be associated with an accessory papillary muscle (s). MATERIALS AND METHODS: This is a retrospective analysis of 4729 patient files of patients who were evaluated at a cardiology practice. The 12-lead surface electrocardiogram was evaluated for the possible presence of a double U wave. In cases where a double U wave was found, the transthoracic echocardiogram was then scrutinized for the presence of an accessory papillary muscle. RESULTS: A total of 3 cases of a double U wave were found. In every case an accessory papillary muscle was clearly seen on the transthoracic echocardiogram. CONCLUSION: A double U wave is a new variant of an old electrocardiographic deflection of enigmatic origin. This variant may be associated with an accessory papillary muscle. | en_US |
dc.identifier.citation | Ker, J 2010, 'The double U wave - should the electrocardiogram be interpreted echocardiographically?', Clinical Medicine Insights: Cardiology, vol. 4, pp. 77-83. [http://www.la-press.com/] | en_US |
dc.identifier.issn | 1179-5468 | |
dc.identifier.uri | http://hdl.handle.net/2263/15271 | |
dc.language.iso | en | en_US |
dc.publisher | Libertas Academica | en_US |
dc.rights | © the author(s), publisher and licensee Libertas Academica Ltd. This is an open access article. Unrestricted non-commercial use is permitted provided the original work is properly cited. | en_US |
dc.subject | U wave | en_US |
dc.subject | Double | en_US |
dc.subject | Papillary muscle | en_US |
dc.subject.lcsh | Electrocardiography | en |
dc.subject.lcsh | Echocardiography | en |
dc.title | The double U wave - should the electrocardiogram be interpreted echocardiographically? | en_US |
dc.type | Article | en_US |