2018
DOI: 10.14740/jmc3011w
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A Case of Recurrent Takotsubo Cardiomyopathy: Not a Benign Entity

Abstract: Takotsubo cardiomyopathy is a relatively uncommon condition triggered by severe physical and/or emotional stress. It is characterized by transient ventricular wall dysfunction in the absence of coronary artery disease (CAD). Herein, we report a case of a 59-year-old female who had three episodes of recurrent Takotsubo cardiomyopathy. On each occasion, she presented with symptoms of acute coronary syndrome accompanied by left ventricular wall motion abnormalities; however, repeat cardiac catheterization failed … Show more

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(2 citation statements)
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“…The sinus node is a crescent-shaped cluster of myocytes, approximately 1 to 2 cm long, located in the high right atrium near the junction of the crista terminalis and the superior vena cava . The sinus node is composed of pacemaker (P) cells, which are responsible for impulse formation, and perinodal or transitional cells, which transmit the impulse to the surrounding atrial tissue, resulting in myocardial depolarization . Sinus node dysfunction was first described in 1968 and encompasses a wide array of abnormalities, including persistent sinus bradycardia, chronotropic incompetence, SA exit block, and sinus arrest.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…The sinus node is a crescent-shaped cluster of myocytes, approximately 1 to 2 cm long, located in the high right atrium near the junction of the crista terminalis and the superior vena cava . The sinus node is composed of pacemaker (P) cells, which are responsible for impulse formation, and perinodal or transitional cells, which transmit the impulse to the surrounding atrial tissue, resulting in myocardial depolarization . Sinus node dysfunction was first described in 1968 and encompasses a wide array of abnormalities, including persistent sinus bradycardia, chronotropic incompetence, SA exit block, and sinus arrest.…”
Section: Discussionmentioning
confidence: 99%
“…In the present case, ECG captured by telemetry showed SA block and sinus arrest. Sinoatrial block is caused by problems in transmission of impulses from the sinus node to the surrounding atrial myocardium and is thought to be related to abnormalities in transitional cells . Because its mass is too small to create a detectable signal on surface ECG, sinus node activity can be inferred only indirectly by the presence or absence of P waves that, based on their axis, reflect atrial myocardial depolarization propagating from the area of the sinus node.…”
Section: Discussionmentioning
confidence: 99%