Impact of myocardial bridging on in-hospital outcome in patients with takotsubo syndrome

Kato, Ken; Kitahara, Hideki; Saito, Yuichi; Fujimoto, Yoshihide; Sakai, Yoshiaki; Ishibashi, Iwao; Himi, Toshiharu; Kobayashi, Yoshio

doi:10.1016/j.jjcc.2017.04.004

Cited by 15 publications

(19 citation statements)

References 13 publications

(24 reference statements)

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“…MB is reportedly associated with several types of cardiomyopathy 69–73 or arrhythmia. 74–76 MB-induced focal myocardial ischemia may account for the prognosis of hypertrophic cardiomyopathy 69 and the development and prognosis of takotsubo cardiomyopathy.…”

Section: Influences Of Mb On the Cardiovascular Systemmentioning

confidence: 99%

“…74–76 MB-induced focal myocardial ischemia may account for the prognosis of hypertrophic cardiomyopathy 69 and the development and prognosis of takotsubo cardiomyopathy. 71–73 In terms of the association between MB and arrhythmia, exercise-induced QT dispersion has been shown to be increased in patients with MB, which suggests that MB-induced focal myocardial ischemia leads to arrhythmia. 74–76…”

Section: Influences Of Mb On the Cardiovascular Systemmentioning

confidence: 99%

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The Myocardial Bridge: Potential Influences on the Coronary Artery Vasculature

Teragawa

Oshita

Ueda

2019

Clin Med Insights Cardiol

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A myocardial bridge (MB) is an anatomical abnormality of the coronary artery and is characterized by the systolic narrowing of the epicardial coronary artery caused by myocardial compression during systole. An MB is frequently observed on cardiac computed tomography or coronary angiography and generally appears to be harmless in the majority of patients. However, the presence of MB is reportedly associated with abnormalities of the cardiovascular system, including coronary artery diseases, arrhythmia, certain types of cardiomyopathy, and cardiac death, indicating that MB serves a pivotal role in the occurrence and/or development of such cardiovascular events. Recently, there has been an increasing interest in the coexistence of MB and coronary spasm in research due to opposing aspects regarding their treatments. For example, monotherapy using β-blockers, which are effective in patients with MB, may worsen symptoms in patients with coronary spasm. By contrast, nitroglycerin, which is an effective treatment option for coronary spasm, may worsen symptoms in patients with MB. This review focuses on the pathophysiology and diagnosis of MB and MB-related cardiovascular diseases, including coronary spasm, and on the treatment strategies for MB.

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Section: Influences Of Mb On the Cardiovascular Systemmentioning

confidence: 99%

Section: Influences Of Mb On the Cardiovascular Systemmentioning

confidence: 99%

The Myocardial Bridge: Potential Influences on the Coronary Artery Vasculature

Teragawa

Oshita

Ueda

2019

Clin Med Insights Cardiol

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“…Migliero et al [62] determined that the MB rates in cases with apical ballooning (40%) were higher in comparison to the control group (8%). Kato et al [63] showed that in hospitalized Takasubo syndrome cases, death was more prevalent in those with MB (21%) in comparison to those without (6%). On the other hand, there are no studies on this topic related to the childhood period.…”

Section: Clinicmentioning

confidence: 99%

Challenges in Evaluation and Management of Children with Myocardial Bridging

Erol

2021

Cardiology

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Myocardial bridging (MB) is a congenital anomaly where a coronary artery branch or group of branches extends inside a tunnel consisting of myocardium. Although it is mostly considered “benign,” it is reported that MB may lead to significant cardiac problems and sudden cardiac deaths. While it is a congenital anomaly, its symptoms usually arise at further ages rather than childhood. The literature on MB in children is in the form of case reports or small case series. This is why pediatric cases are assessed in the light of information obtained from adults. This review compiled the literature on MB in adults and children and compared it, as well as discussing questions arising regarding the clinic, diagnosis, and treatment of MB.

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“…Sixth, cause of death was not recorded in the DPC database. Although patients diagnosed with TTS reportedly often have noncardiac comorbidities [10][11][12] that can cause non-cardiac death [27,37,39,43], we were unable to investigate the differences in the incidences of cardiac and non-cardiac death between the CAE (+) and CAE (À) groups. Finally, our results may not be generalizable to patients hospitalized with TTS at non-Japanese Circulation Society board-certified teaching hospitals or hospitals in other countries.…”

Section: Study Limitationsmentioning

confidence: 99%