Congenital absence of left circumflex coronary artery presented with vasospastic angina and myocardial bridge in single left coronary artery

Yoon, Young Kyung; Rha, Seung Woon; Na, Jin Oh; Suh, Soon Yong; Choi, Cheol Ung; Kim, Jin Won; Kim, Eung Ju; Park, Chang Gyu; Seo, Hong Seog; Oh, Dong Joo

doi:10.1016/j.ijcard.2007.08.009

Cited by 8 publications

(9 citation statements)

References 6 publications

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“…The absence of the LCx, and continuation of the dominant RCA as the LCx along the entire length of the atrioventricular groove is, in general, thought to have a benign outcome unless atherosclerotic coronary artery disease is superimposed (9). However, in the present case, RCA was the culprit vessel and a branch of RCA covered the territory of the LCx.…”

Section: Discussionmentioning

confidence: 58%

Congenital Absence of the Left Circumflex Artery Associated with Inferior Myocardial Infarction

Guo

2012

Intern. Med.

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Congenital absence of the left circumflex artery is a rare anomaly of the coronary arteries. A 52-year-old man who developed acute inferior myocardial infarction underwent coronary angiography which revealed the absence of the left circumflex artery and that the surrounding structures were supplied by the infarct-related super-dominant right coronary artery. Two stents were implanted into the right coronary artery and one stent into the mid portion of the left anterior descending artery. Follow-up coronary angiography at 67 months showed no detectable restenosis, and 64-slice multidetector computed tomography confirmed the absence of the left circumflex artery. The circumflex artery as a terminal extension of a culprit right coronary artery has not been previously reported.

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Section: Discussionmentioning

confidence: 58%

Congenital Absence of the Left Circumflex Artery Associated with Inferior Myocardial Infarction

Guo

2012

Intern. Med.

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“…Eighty-eight studies were excluded due to discrepancies between their primary and secondary results compared to those of this review, or because they failed to meet the established criteria for good data extraction. Therefore, 39 articles [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ] were selected for this study ( n = 140,137) (including patients, images, and cadavers) ( Figure 1 ).…”

Section: Resultsmentioning

confidence: 99%

Hypoplastic and Congenital Absence of Coronary Arteries and Its Correlation with Clinical Implications of Cardiac Circulation: A Systematic Review and Meta-Analysis

Bruna-Mejias,

del Villar-Valdebenito,

Roman

et al. 2024

JCM

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Background: Coronary arteries originate from the first portion of the aorta, emerging from the right and left aortic sinuses. They traverse through the subepicardium and coronary sulcus to supply the myocardium during diastolic function. The objective of this review was to understand how the hypoplasia and agenesis of the coronary arteries are associated with cardiac pathologies. Methods: The databases Medline, Scopus, Web of Science, Google Scholar, CINAHL, and LILACS were researched until January 2024. An assurance tool for anatomical studies (AQUA) was used to evaluate methodological quality. The pooled prevalence was estimated using a random effects model. Results: A total of three studies met the established selection criteria for inclusion in this meta-analysis. The prevalence of coronary artery variants was 3% (CI = 2% to 8%), with a heterogeneity of 77%. The other studies were analyzed descriptively, along with their respective clinical considerations in the presence of the variant. Conclusions: Hypoplasia and the congenital absence of the coronary arteries are often incidental findings and understanding these variants is crucial to prevent misdiagnosis. Additionally, it is essential to exercise caution when considering surgical management for hearts with these variants.

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“…In patients with CAD, if LCx cannot be visualized during CAG, either an atherosclerotic ostial occlusion or congenital absence/agenesis should be suspected. 37,47 The LCx is known to arise anomalously from the RCA, separately from the left sinus of Valsalva, or very rarely from the pulmonary artery or non-coronary sinus. 22,48,49 The LCx and RCA normally run through the AV groove, forming a loop.…”

Section: Clinical Anatomy and Patho-physiologymentioning

confidence: 99%

Congenital absence of the left circumflex artery: Case series and review

Jariwala

Jadhav

Kale

2021

Asian Cardiovasc Thorac Ann

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Congenital absence of the left circumflex artery (CALCx) or an anomalous origin of the left circumflex artery from the right coronary artery is a unique anomaly in the literature that has been incidentally diagnosed with coronary angiography. CALCx is characterized by an angiographical absence of the left circumflex artery, with a super-dominant right coronary artery that provides the postero-lateral wall of the left ventricle. We present a review of the literature of a total of 52 CALCx cases reported so far including our case. In our study, the average age of patients was 52.83 years (median – 55 years; standard deviation – 13.05 years; range 12–76 years) with a male to female ratio of 1.93:1. The chronic coronary syndrome was the most common clinical presentation followed by the acute coronary syndrome. In 45.5% of cases, the associated coronary artery disease was documented. A comprehensive anatomical and functional assessment is required for the appropriate management strategy.

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Congenital absence of left circumflex coronary artery presented with vasospastic angina and myocardial bridge in single left coronary artery

Cited by 8 publications

References 6 publications

Congenital Absence of the Left Circumflex Artery Associated with Inferior Myocardial Infarction

Congenital Absence of the Left Circumflex Artery Associated with Inferior Myocardial Infarction

Hypoplastic and Congenital Absence of Coronary Arteries and Its Correlation with Clinical Implications of Cardiac Circulation: A Systematic Review and Meta-Analysis

Congenital absence of the left circumflex artery: Case series and review

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