Benign persistent T-wave inversion mimicking ischemia after left bundle-branch block—cardiac memory

Byrne, Richard; Filippone, Lisa M.

doi:10.1016/j.ajem.2009.10.003

Cited by 17 publications

(6 citation statements)

References 4 publications

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“…The incidence of T wave inversions during periods of normal conduction has been reported to be as high as 50% in patients with intermittent LBBB . This specific electrocardiographic abnormality can be explained on the basis of cardiac memory (also called Chatterjee phenomenon) . Cardiac memory refers to electrocardiographic T wave abnormalities that occur on resumption of normal ventricular activation after a period of abnormal ventricular activation .…”

Section: Clinical Impact Of Episodic Lbbbmentioning

confidence: 99%

Episodic Left Bundle Branch Block—A Comprehensive Review of the Literature

Bazoukis

Tsimos

Korantzopoulos

2016

Noninvasive Electrocardiol

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Episodic (transient/ intermittent) left bundle branch block (LBBB) has been associated with different conditions such as bradycardia, tachycardia, anesthesia, acute pulmonary embolism, changes in intrathoracic pressure, chest trauma, cardiac interventional procedures, mad honey poisoning, and in other clinical settings. Of note, exclusion of an acute coronary syndrome in the setting of episodic LBBB is of great importance. Moreover, episodic LBBB is sometimes symptomatic and may be associated with left ventricular systolic and/or diastolic dysfunction or conduction disturbances leading to syncope. This review article provides a comprehensive overview of the conditions associated with episodic LBBB and discusses the clinical impact of this phenomenon.

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Section: Clinical Impact Of Episodic Lbbbmentioning

confidence: 99%

Episodic Left Bundle Branch Block—A Comprehensive Review of the Literature

Bazoukis

Tsimos

Korantzopoulos

2016

Noninvasive Electrocardiol

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“…Several cases of cardiac memory associated with LBBB in patients evaluated for chest pain have been reported [5,[12][13][14]. Whether the symptoms reported with cardiac memory were directly related to the ECG changes of cardiac memory, to the underlying depolarization abnormality leading to the cardiac memory, or were merely coincidental, remains unclear.…”

Section: Discussionmentioning

confidence: 99%

Chest pain associated with rate-related left bundle branch block and cardiac memory mimicking ischemia

Malozzi

Wenzel

Karumbaiah

et al. 2014

Journal of Cardiology Cases

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Background: Intermittent left bundle branch block (LBBB) has been linked to chest pain, and causes cardiac memory electrocardiographic (ECG) changes mimicking ischemia. Purpose: To present a case of chest pain with ECG abnormalities suggestive of ischemia, both likely caused by LBBB. Case: A 33-year-old hypertensive female evaluated for chest pain and LBBB by ECG was treated with lisinopril and metoprolol, and scheduled for stress testing. A 12-lead ECG performed prior to the stress test, due to recurrence of the chest pain the preceding night, showed resolution of the LBBB with a lower heart rate, and T-wave inversions in the precordial leads suggestive of ischemia. She developed chest pains with reappearance of LBBB during stress testing, which prompted cardiac catheterization. This revealed normal coronaries and left ventricular systolic function. The ECG abnormalities were in retrospect likely due to cardiac memory. Her chest pains may have been caused by the intermittent, rate-related LBBB, as control of her heart rate and blood pressure with metoprolol and lisinopril improved her symptoms on follow-up. Conclusion: Intermittent LBBB causes chest pain and electrocardiographic abnormalities suggestive of ischemia in the absence of obstructive coronary disease. Certain clinical and electrocardiographic features may provide clues to a non-ischemic etiology.

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“…Se ha informado que la incidencia de inversiones de onda T durante períodos de conducción normal es tan alta como 50% en pacientes con bloqueo de rama intermitente (Abben et al, 1979). Esta anomalía electrocardiográfica específica puede explicarse sobre la base de la memoria cardíaca (también llamado fenómeno de Chatterjee) (Byrne & Filippone, 2010). La memoria cardiaca se refiere a anomalías electrocardiográficas de la onda T que ocurren al reanudarse la activación ventricular normal después de un período de activación ventricular anormal (64).…”

Section: Impacto Clínicounclassified

Bloqueo de rama intermitente revision de tema y abordaje de una entidad clinica compleja

león

Sarmiento²,

Badillo³

et al. 2023

Ciencia Latina

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Introducción: El bloqueo intermitente de rama del haz de His es un trastorno de la conducción poco común con solo unos pocos casos informados en la literatura, principalmente después de una isquemia miocárdica o un traumatismo cardíaco cerrado o múltiples causas que enumeraremos a lo largo de esta revisión. Presentación del caso: El vasoespasmo coronario como causa principal de bloqueo de rama intermitente ha sido poco informado antes. Presentamos un caso de un hombre de mediana edad con presentación de dolor torácico cardíaco con bloqueo de rama izquierda intermitente en Electrocardiograma. El paciente fue llevado al laboratorio de cateterismo. El angiograma finalmente mostró coronarias con vasoespasmo moderado-severo en la arteria descendente anterior izquierda, que se alivió totalmente tras la colocación de un stent medicado. Discusión y Revisión: El bloqueo de rama intermitente suele presentarse en pacientes con cardiopatía subyacente o enfermedad del sistema de conducción. Hay dos formas de bloqueo de rama aquellos dependientes de la frecuencia: la forma de bloqueo dependiente de la aceleración, en la que se produce un retraso en la conducción cuando la frecuencia cardíaca supera un valor crítico, y el bloqueo dependiente de la desaceleración en el que se produce un retraso en la conducción cuando la frecuencia cardíaca desciende por debajo de un nivel crítico. Conocer este tipo de fenómenos permite una mejor compresión de la fisiopatología de los cambios electrocardiográficos para así abordar oportunamente dicha condición y obtener los mejores resultados posibles.

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Benign persistent T-wave inversion mimicking ischemia after left bundle-branch block—cardiac memory

Cited by 17 publications

References 4 publications

Episodic Left Bundle Branch Block—A Comprehensive Review of the Literature

Episodic Left Bundle Branch Block—A Comprehensive Review of the Literature

Chest pain associated with rate-related left bundle branch block and cardiac memory mimicking ischemia

Bloqueo de rama intermitente revision de tema y abordaje de una entidad clinica compleja

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