Artery Research

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Volume 26, Issue 2, June 2020, Pages 84 - 88

Myocardial Bridge Anatomical Characteristics Relationship with ECG Changes and Markers

Authors
Hussein Nafakhi1, *, Abdulameer A. Al-Mosawi2, Samet Kasim1
1Internal Medicine Department, Medicine College, University of Kufa, Najaf, Iraq
2Radiology Department, Medicine College, University of Kufa, Najaf, Iraq
*Corresponding author. Email: husseinaf.alnaffakh@uokufa.edu.iq
Corresponding Author
Hussein Nafakhi
Received 12 December 2019, Accepted 8 April 2020, Available Online 11 May 2020.
DOI
10.2991/artres.k.200502.001How to use a DOI?
Keywords
Myocardial bridge; ECG; coronary atherosclerosis; CT angiography
Abstract

Background: The clinical significance of coronary Myocardial Bridge (MB) anatomical characteristics is controversial in the literature. It is not clear whether MB has a benign or malignant clinical outcome.

Objectives: To investigate the possible relationship between MB characteristics (depth, length and volume index) with ECG markers [T Peak-to-End interval (Tp-e), transmural dispersion of repolarization and Index of Cardiac Electrical Balance (iCEB)] and changes (ST-T and S/R ratio changes in V1 and aVL leads).

Patients and Methods: Forty-one patients who were diagnosed as having MB at multi-detector CT exam were enrolled in the study.

Results: MB depth and volume index were associated with notched QRS (p = 0.001 and 0.003 respectively) in the whole sample. The association of notched QRS with MB depth and volume index was more significant in patients with coronary atherosclerosis (p = 0.001 and 0.01 respectively). There was a statistically significant association between MB length (p = 0.006) and volume index (p = 0.001) with an increased S/R ratio in aVL lead in patients free from coronary atherosclerosis. No statistically significant association was observed between MB anatomical characteristics with ECG markers of increased arrhythmia (p > 0.01), including TDR, Tp-e and iCEB.

Conclusion: MB depth and volume index showed a statistically significant association with notched QRS, particularly in patients with coronary atherosclerosis.

HIGHLIGHTS
  • •

    The clinical significance of coronary Myocardial Bridge (MB) anatomical characteristics is controversial in the literature.

  • •

    It is not clear whether MB has benign or malignant clinical outcome.

  • •

    The results of the present study showed that some MB anatomical characteristics are associated with significant ECG changes.

Copyright
© 2020 Association for Research into Arterial Structure and Physiology. Publishing services by Atlantis Press International B.V.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

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<Previous Article In Issue
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Journal
Artery Research
Volume-Issue
26 - 2
Pages
84 - 88
Publication Date
2020/05/11
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.2991/artres.k.200502.001How to use a DOI?
Copyright
© 2020 Association for Research into Arterial Structure and Physiology. Publishing services by Atlantis Press International B.V.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - JOUR
AU  - Hussein Nafakhi
AU  - Abdulameer A. Al-Mosawi
AU  - Samet Kasim
PY  - 2020
DA  - 2020/05/11
TI  - Myocardial Bridge Anatomical Characteristics Relationship with ECG Changes and Markers
JO  - Artery Research
SP  - 84
EP  - 88
VL  - 26
IS  - 2
SN  - 1876-4401
UR  - https://doi.org/10.2991/artres.k.200502.001
DO  - 10.2991/artres.k.200502.001
ID  - Nafakhi2020
ER  -