Comparison of radiological and morphologic assessments of myocardial bridges

Erçakmak, Burcu; Bulut, Elif; Hayran, Mutlu; Kaymaz, Figen; Bilgin, Selma; Hazırolan, Tuncay; Bayramoǧlu, Alp; Erbil, Mine

doi:10.1007/s12565-014-0251-0

Cited by 4 publications

(6 citation statements)

References 21 publications

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“…Our study showed that a “typical” myocardial bridge has around 19 mm in length and 2.5 mm in thickness, values that can be considered hemodynamically significant . If, however, for prevalence data we believed that this meta‐analysis underestimated the true prevalence of this variant, for the analyses of mean thickness and length we believe the mean values are in reality lower, as more superficial and/or smaller bridges are less likely to be detected by using imaging techniques, a hypothesis confirmed by other studies . Ercakmak, for example, found the length of the MB, as assessed during autopsy to be significantly higher compared to the one assessed using CT (a mean increase of 4.5 mm) .…”

Section: Discussionsupporting

confidence: 75%

“…Ercakmak, for example, found the length of the MB, as assessed during autopsy to be significantly higher compared to the one assessed using CT (a mean increase of 4.5 mm) (141). There were no differences regarding the depth (141), most likely due to an incomplete identification of superficial bridges during CT examination (141). Evaluating the hemodynamic significance of MB was beyond the purpose of this analysis.…”

Section: Discussionmentioning

confidence: 89%

“…If, however, for prevalence data we believed that this meta-analysis underestimated the true prevalence of this variant, for the analyses of mean thickness and length we believe the mean values are in reality lower, as more superficial and/or smaller bridges are less likely to be detected by using imaging techniques, a hypothesis confirmed by other studies (35,141). Ercakmak, for example, found the length of the MB, as assessed during autopsy to be significantly higher compared to the one assessed using CT (a mean increase of 4.5 mm) (141). There were no differences regarding the depth (141), most likely due to an incomplete identification of superficial bridges during CT examination (141).…”

Section: Discussionmentioning

confidence: 98%

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Myocardial Bridging: A Meta‐Analysis of Prevalence

Hostiuc

Negoi

Rusu

et al. 2017

Journal of Forensic Sciences

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The main objective of this article was to analyze prevalence data about myocardial bridging (MB) in published studies. To this purpose, we performed a meta-analysis of studies published in English literature that contained data about the prevalence of MB and its anatomical characteristics. The overall prevalence was 19% (CI: 17-21%); autopsy studies revealed an overall prevalence of 42% (CI: 30-55%), CT studies 22% (CI: 18-25%), and coronary angiography 6% (CI: 5-8%). Most bridges were located on the left anterior descending artery (82% overall, 63% on autopsy studies), had a mean thickness of 2.47 mm and a mean length of 19.3 mm. In conclusion, autopsy studies should be the gold standard in evaluating the actual prevalence of myocardial bridges, while in vivo high-resolution CT scanning should be preferred to coronary angiography studies.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 98%

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Myocardial Bridging: A Meta‐Analysis of Prevalence

Hostiuc

Negoi

Rusu

et al. 2017

Journal of Forensic Sciences

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“…Ercakmak et al. (2015) have compared the findings of coronary dual‐source computed tomography angiography of myocardial bridges with cadaveric dissections. The results have shown that coronary computed tomography angiography is reliable in evaluating the presence and depth of myocardial bridges.…”

Section: Introductionmentioning

confidence: 99%

The relationships between the myocardial bridge and ramus interventricularis paraconalis characteristics in lamb and sheep

Gülmez

Sah

2020

Anat Histol Embryol

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The myocardial bridge (MB) is an anomaly that the myocardial fibres cover on a segment of the subepicardial coronary arteries or their branches in domestic animals and humans. The aim of the present study was to determine the relationships between the characteristics of the MB and ramus interventricularis paraconalis at three levels in lambs and adult sheep. Thirty‐three hearts (16 lambs and 17 sheep) were used to determine the MB (length, angle and thickness) and vessel (vessel diameter and thicknesses of tunica intima et media of ramus interventricularis paraconalis) characteristics. Independent‐samples t test was applied to compare variables between lambs and sheep. Spearman's correlation analysis was conducted to evaluate the relationships between bridge and vessel characteristics at three bridge levels. Length, angle and thickness of myocardial bridges were not significantly different between the lambs and sheep (p > .05). The mean length, angle and thickness were 24.9 ± 16.1 mm, 113.7 ± 11.2° and 1,098 ± 555 µm in 33 hearts, respectively. In lambs, the mean vessel diameters were 1,930 ± 742 µm (1,534–2,325 µm), 1,247 ± 665 µm (893–1,601 µm) and 865 ± 172 µm (774–957 µm) at the pre‐bridge, bridge and post‐bridge levels, respectively. In sheep, the mean vessel diameters in the same order were 1,861 ± 1,068 µm, 1,337 ± 308 µm and 1,287 ± 549 µm. The bridge prevalence was 100% in the samples examined. In conclusion, coronary arterial diseases related to myocardial bridge should not be expected in sheep for veterinary cardiology practice. It may also be concluded that the cross‐breeds of the Awassi and Chios sheep may be useful in experimental studies related to myocardial bridge surgery.

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“…Глубина залегания ММ, по данным КТ-коронарографии, колебалась в диапазоне от 0,4 до 7,4 мм, на аутопсийном материале этот показатель не превышал 10 мм. При этом следует иметь в виду, что реальные морфометрические параметры ММ всегда больше его протяженности, измеряемой на МСКТ-сканах [24]. Различия могут достигать 4,5 мм.…”

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Myocardial bridges and obstructive coronary atherosclerosis

Kabak¹,

Мельниченко

Gordionok

et al. 2020

Vescì Nac. akad. navuk Belarusì, Ser. med. navuk

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The myocardial bridge (MB) is a congenital anomaly, in which a segment of a coronary artery courses through the myocardium. The aim of the study was to establish the location of myocardial bridges and the severity of atherosclerotic lesions of the coronary arteries in patients with coronary heart disease symptoms and in individuals who are the potential heart donors for transplantation. The data of the multislice computed tomography coronary angiography of the patients of the Republican Scientific and Practical Centre “Cardiology” from 2016 to 2018 were included in this study. 324 hearts of the deceased donors, which had not been used for orthotopic transplantation, were studied. According to the autopsy and the CT coronary angiography, the myocardial bridges were localized mainly in the left anterior descending artery of the left coronary artery (LCA). In 7.4 % of cases, MBs were found in a distal portion of the intermediate branch of LCA, in the left postero-lateral branch, in the right coronary artery, in the first diagonal artery, as well as along the obtuse marginal artery and the left circumflex coronary artery. In 36 % of cases, the identified bridges were considered as hemodynamically significant with regard to the length of the tunneled artery segment and its depth. Microscopic examination of the tunneled fragments of the coronary arteries in 4.9 % of cases showed the initial signs of damage of the vessel wall in the form of fibromuscular dysplasia and lipidosis. According to the CT coronary angiography results, no causal relationship has been established between the presence of MBs and atherosclerosis in the subepicardial segments of the coronary arteries.

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Comparison of radiological and morphologic assessments of myocardial bridges

Cited by 4 publications

References 21 publications

Myocardial Bridging: A Meta‐Analysis of Prevalence

Myocardial Bridging: A Meta‐Analysis of Prevalence

The relationships between the myocardial bridge and ramus interventricularis paraconalis characteristics in lamb and sheep

Myocardial bridges and obstructive coronary atherosclerosis

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