Myocardial infarction caused by coronary artery myocardial bridge

Bashour, Tali T.; Espinosa, E; Blumenthal, Joseph; Wong, T.W.; Mason, Dean T.

doi:10.1016/s0002-8703(97)70195-9

Cited by 26 publications

(25 citation statements)

References 12 publications

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“…3,4 Sometimes an acute thrombus formation within a myocardial bridge may cause a myocardial infarction. Agirbasli et al 9 reported a clear demonstration of thrombus formation within a myocardial bridge after strenuous exercise.…”

Section: Discussionmentioning

confidence: 99%

“…In some instances these vessels may be bridged by muscle or epicardial fibers. Although a myocardial bridge is a benign congenital anomaly characterized by systolic compression of part of an epicardial coronary artery by a segment of overlying myocardium, 1 several reports have shown an association of this condition with myocardial ischemia, 2 infarction, 3 vasospasm, 4 cardiac arrhythmias, 5 and sudden death. 6 In this report, we describe a case of acute anterior-wall myocardial infarction due to systolic total narrowing of the left anterior descending (LAD) coronary artery secondary to a myocardial bridge as demonstrated by coronary angiography.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Systolic Total Narrowing of Left Anterior Descending Coronary Artery and Flow Interruption Secondary to Myocardial Bridge: A Rare Case Report and Review of Literature

Kacmaz

Alyan

İlkay

2008

Clinical Cardiology

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A 33-y-old man was admitted to the emergency department with sudden onset of severe substernal chest pain radiating to the left arm and neck. No pathological signs were recorded upon physical examination. The admission electrocardiogram (ECG) recorded during chest pain showed a large anterior wall myocardial infarction. Intravenous (IV) infusion of 1.5 million units of streptokinase over 1 h was initiated. Coronary angiography revealed total narrowing and flow interruption in the midsegment of the left anterior descending (LAD) coronary artery secondary to a myocardial bridge during systole and disappearance with diastole. He was discharged on aspirin (300 mg/d), metoprolol (100 mg/d), enalapril (10 mg twice daily), and atorvastatin (40 mg/d) treatment at the follow-up period.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Systolic Total Narrowing of Left Anterior Descending Coronary Artery and Flow Interruption Secondary to Myocardial Bridge: A Rare Case Report and Review of Literature

Kacmaz

Alyan

İlkay

2008

Clinical Cardiology

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“…Autopsy studies have shown an incidence of MB as high as 85% 2,3 . The presence of MB, which is considered a benign condition, in the ADA would be protective because it prevents the development of significant atherosclerosis in the affected area 12 . The coexistence of MB and significant atherosclerosis has been rarely reported 13 .…”

Section: Discussionmentioning

confidence: 99%

Rescue coronary angioplasty in a patient with acute myocardial infarction and myocardial bridge

Araújo¹,

Fo²,

Souza³

et al. 1999

Arq. Bras. Cardiol.

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“…The angiographic prevalence of myocardial bridge is reported from 0.5% to 29.4% [25][26][27] and can result in significant hemodynamic changes in coronary flow, predisposing to cardiac events [28]. However, it is usually considered a benign condition [25], though it has been associated with myocardial ischemia [26], tachycardiainduced ischemia [27], conduction disturbances [28], myocardial infarction [29,30] and sudden death (Table 1) [31].…”

Section: Clinical-surgical Implicationsmentioning

confidence: 99%

“…However, it is usually considered a benign condition [25], though it has been associated with myocardial ischemia [26], tachycardiainduced ischemia [27], conduction disturbances [28], myocardial infarction [29,30] and sudden death (Table 1) [31]. A recent Brazilian study analyzed the results of 3375 coronary angiographies performed in the period of 2003 to 2007, of which 123 showed the phenomenon of systolic constriction of the left anterior descending artery with the diagnosis of myocardial bridge.…”

Section: Clinical-surgical Implicationsmentioning

confidence: 99%

Ausência de arteriosclerose na porção intramiocárdica das artérias coronárias

Ramalli¹,

Braga²,

Évora³

et al. 2011

Rev Bras Cir Cardiovasc

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Ausência de arteriosclerose na porção intramiocárdica das artérias coronárias: um mistério a ser resolvido?Absence of arteriosclerosis in intramyocardial coronary arteries: a mystery to be solved? Work AbstractSeveral studies show that portions of intramyocardial coronary arteries are spared of arteriosclerosis, involving morphological, embryological, biochemical and pathophysiological aspects. Endothelial function is significantly affected in the segment of transition, as estimated by the vasoactive response to Ach. These findings suggest that myocardial bridge can provide protection against arteriosclerosis by counteracting the negative effects of endothelial dysfunction. The intramyocardial portion's protection phenomenon deserves further scientific research on all research fronts. Improved morphological, biomechanical and especially physiological and embryological knowledge may be the key to a future window of opportunity for chronic arterial disease therapy and prevention. In addition, this review discusses possible therapeutic approaches for symptomatic coronary ischemia caused by myocardial bridges.Descriptors: Myocardial bridging. Coronary circulation. Endothelium. ResumoDiversos estudos demonstram que as porções intramiocárdicas das artérias coronárias são poupadas da arteriosclerose, envolvendo aspectos morfológicos, embriológicos, biomecânicos e aspectos fisiopatológicos. A função endotelial é significativamente afetada no segmento de transição, tal como estimado pela resposta vasoativa para acetilcolina (Ach). Esses achados sugerem que ponte miocárdica pode fornecer proteção contra a arteriosclerose, por contrariar os efeitos negativos da disfunção endotelial. O fenômeno dessa proteção da porção intramiocárdica merece maior investigação científica em todas as frentes de pesquisa. Maiores conhecimentos sobre os aspectos morfológicos, biomecânicos e, principalmente, fisiológicos e embriológicos podem ser a chave para uma futura janela de oportunidades de terapia e prevenção da doença arterial crônica. Nessa revisão, discutemse, também, possíveis abordagens terapêuticas para fenômenos coronarianos isquêmicos causados por pontes miocárdicas.Descritores: Ponte miocárdica. Circulação coronária. Endotélio. RBCCV 44205-1301

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Myocardial infarction caused by coronary artery myocardial bridge

Cited by 26 publications

References 12 publications

Systolic Total Narrowing of Left Anterior Descending Coronary Artery and Flow Interruption Secondary to Myocardial Bridge: A Rare Case Report and Review of Literature

Systolic Total Narrowing of Left Anterior Descending Coronary Artery and Flow Interruption Secondary to Myocardial Bridge: A Rare Case Report and Review of Literature

Rescue coronary angioplasty in a patient with acute myocardial infarction and myocardial bridge

Ausência de arteriosclerose na porção intramiocárdica das artérias coronárias

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