Evaluation of Myocardial Bridge With 64-Slice Computed Tomography Coronary Angiography

Bayrak, Fatih; Güneysu, Tahsin; Sevinc, Deniz; Eroğlu, Elif; Gemici, Gökmen; Mutlu, Bülent; Aytaclar, Semih; Değertekin, Muzaffer

doi:10.1016/s1567-5688(08)70664-0

Cited by 2 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Traditionally, the area under the MB has been considered to be spared from atherosclerosis, and the area just proximal to it has been considered to be prone to the development of atherosclerosis along with shear stress considerations. 10,[18][19][20] The high-pressure gradients may increase the local wall tension and stretch and induce endothelial injury and plaque fissuring with subsequent thrombus formation, which is supported by autopsy and clinical studies. 21 In addition, the atherosclerosis process in the segments proximal to ICA is subject to the complex hemodynamics caused by retrograde blood flow from the MB squeezing at systole.…”

Section: Discussionmentioning

confidence: 85%

“…Previous prospective studies mainly focused on the significance of isolated ICA in the absence of atherosclerosis in the nonbridging arteries [8][9][10] or with small sample sizes. 2,3,11 The results were quite discordant; some showed that ICA is a benign anatomic variation, 2,3,10,11 and others showed it as an anatomic risk factor for CAD. 8,9 Recently, multidetector computed tomography (MDCT) has been used noninvasively to examine coronary arteries directly, and surprisingly, the wide use of MDCT also increased the detection rate for ICA.…”

Section: Arterioscler Thromb Vasc Biolmentioning

confidence: 99%

See 1 more Smart Citation

Intramural Coronary Arterial Course Is Associated With Coronary Arterial Stenosis and Prognosis of Major Cardiac Events

Wang

Chen

et al. 2013

ATVB

View full text Add to dashboard Cite

Objective-The clinical significance of an intramural course (or bridging) of the coronary artery remains controversial. We investigated the relationship between intramural coronary arteries (ICAs) and coronary stenosis and prognosis of subjects with ICA. Methods and Results-ICA and coronary stenosis were assessed by multidetector computed tomography coronary angiography. ICAs in the left anterior descending artery were studied, which were further classified as superficial (≤2 mm) or deep type (>2 mm). Coronary stenosis was classified as nonstenosis, insignificant stenosis (<50%), and significant stenosis (≥50% Key Words: coronary artery stenosis ◼ intramural coronary artery ◼ major cardiac event ◼ multidetector computed tomography ◼ myocardial bridging

show abstract

Section: Discussionmentioning

confidence: 85%

Section: Arterioscler Thromb Vasc Biolmentioning

confidence: 99%

Intramural Coronary Arterial Course Is Associated With Coronary Arterial Stenosis and Prognosis of Major Cardiac Events

Wang

Chen

et al. 2013

ATVB

View full text Add to dashboard Cite

show abstract

“…However, Poullis et al (21) disagreed the standpoint and claimed that MB is likely to be protective factor, and not as a risk factor as describing by Ishikawa et al (17). The 64-slice computed tomography coronary angiography study of Bayrak et al (22) suggested that there may be no relationship between MB and proximal atherosclerosis. At present, large sample study (>500 cases) about whether SNR of MB-MCA is one of independent risk factors of coronary atherosclerosis formation proximal to the bridging is still empty.…”

Section: Discussionmentioning

confidence: 99%

“…There was not enough data to support that MB or SNR of MB-MCA is an independent factor of atherosclerosis formation proximal to MB (14,17,21,22). The autopsy study of Ishikawa et al (17) suggested that anatomic properties of MB enhance the development of atherosclerosis in the LAD proximal to MB.…”

Section: Discussionmentioning

confidence: 99%

“…However, whether MB or systolic narrow rate (SNR) of MB-MCA is one of independent risk factors of coronary atherosclerosis formation proximal to the bridging is still a controversial issue (14,17,21,22). The larger sample study about related risk factors of coronary artery stenosis located proximally to myocardial bridging has not been approached so far.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Angiographically evident atherosclerotic stenosis associated with myocardial bridging (MB) and risk factors for the artery stenosis located proximally to MB: an observational study

Hong

Wang²,

Li³

et al. 2013

Anadolu Kardiyol Derg

View full text Add to dashboard Cite

Objective: The purpose of this study was to determine the prevalence of coronary angiographically evident atherosclerotic stenosis associated with myocardial bridging (MB) and to explore related risk factors of coronary artery stenosis located proximally to MB. Methods: Overall, 603 patients with MB-mural coronary arteries (MB-MCAs) diagnosed by angiography initially were enrolled in this observational study during May 2004 to May 2009. One-way ANOVA, t-test, Pearson correlation test and stepwise multiple regression analysis were performed to explore related risk factors. Results: Totally 644 MB-MCAs were examined. Prevalence of lesions located distally to MBs was significantly lower than those proximally to MBs [36 (5.9%) vs. 382 (62.4%), p<0.001]. Diastolic vessel diameters in MB segments were significantly smaller than reference segments p<0.001. Ulcer-like lesion was found in MB-MCA in 1 patient. Multivariate analysis suggested that vascular bifurcation lesions, the degree of narrowing and the number of diseased coronary vessels of non-MB-MCA arteries, age, low-density lipoprotein cholesterol (LDL-C)/high density lipoprotein cholesterol (HDL-C), male, course of diabetes, and systolic narrow rate (SNR) of MB-MCAs were positively related with the narrow degree of the first coronary artery stenosis (FCAS) located proximally to MBs (all p<0.05). Vascular bifurcation lesions, the degree of narrowing and the number of diseased coronary vessels of non-MB-MCA arteries, age, LDL-C/HDL-C, male, diabetes and dyslipidemia were positively related with the narrow degree of the most severe coronary artery stenosis(MSCAS) located proximally to MB (all p<0.05). Conclusion: The intramural and distal portions of a bridged artery are not the forbidden zone of artery atherosclerosis formation. SNR of MB-MCA may be one of the important decision factors to coronary artery stenosis located proximally to MB.

show abstract

Evaluation of Myocardial Bridge With 64-Slice Computed Tomography Coronary Angiography

Cited by 2 publications

References 0 publications

Intramural Coronary Arterial Course Is Associated With Coronary Arterial Stenosis and Prognosis of Major Cardiac Events

Intramural Coronary Arterial Course Is Associated With Coronary Arterial Stenosis and Prognosis of Major Cardiac Events

Angiographically evident atherosclerotic stenosis associated with myocardial bridging (MB) and risk factors for the artery stenosis located proximally to MB: an observational study

Contact Info

Product

Resources

About