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The accessory papillary muscle with inferior J-waves--peculiarity or hidden danger?

ABSTRACT: Originally described in 1953, today the so-called J-wave is the source of much controversy. As a marker of so-called "early repolarization", this variant has been regarded as a totally benign variant since the 1960's. However, since then a wealth of data have indicated that the J-wave may be a marker of a highly arrhythmogenic substrate with a resultant high risk of sudden cardiac death.In this case report a case of an accessory papillary muscle with a prominent J-wave is described. This may be the first of many possible cases where papillary muscle variants may be the cause of the J-wave.

SUBMITTER: Ker J

PROVIDER: S-EPMC2774670 | biostudies-literature | 2009 Oct

REPOSITORIES: biostudies-literature

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The accessory papillary muscle with inferior J-waves--peculiarity or hidden danger?

Ker James J du Toit Lorraine L

Cardiovascular ultrasound 20091029

Originally described in 1953, today the so-called J-wave is the source of much controversy. As a marker of so-called "early repolarization", this variant has been regarded as a totally benign variant since the 1960's. However, since then a wealth of data have indicated that the J-wave may be a marker of a highly arrhythmogenic substrate with a resultant high risk of sudden cardiac death.In this case report a case of an accessory papillary muscle with a prominent J-wave is described. This may be ...[more]

PMID: 19874622

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