Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges

Aim. To evaluate the effectiveness of left ventricular (LV) peak global longitudinal strain and potential of computed tomography myocardial perfusion (CT perfusion) for the early diagnosis of asymptomatic patients with myocardial bridges (MBs).Material and methods. Forty patients were examined (20 w...

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Main Authors: N. T. Mirzoev, K. S. Shulenin, G. G. Kutelev, T. G. Tedeev, D. V. Cherkashin, V. V. Ivanov
Format: Article
Language:Russian
Published: «FIRMA «SILICEA» LLC 2024-08-01
Series:Российский кардиологический журнал
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Online Access:https://russjcardiol.elpub.ru/jour/article/view/5889
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author N. T. Mirzoev
K. S. Shulenin
G. G. Kutelev
T. G. Tedeev
D. V. Cherkashin
V. V. Ivanov
author_facet N. T. Mirzoev
K. S. Shulenin
G. G. Kutelev
T. G. Tedeev
D. V. Cherkashin
V. V. Ivanov
author_sort N. T. Mirzoev
collection DOAJ
description Aim. To evaluate the effectiveness of left ventricular (LV) peak global longitudinal strain and potential of computed tomography myocardial perfusion (CT perfusion) for the early diagnosis of asymptomatic patients with myocardial bridges (MBs).Material and methods. Forty patients were examined (20 with asymptomatic MBs in the area of the left anterior descending (LAD) artery and 20 without MBs) at the S. M. Kirov Military Medical Academy in the period from 2021 to 2023. The patients were divided into 2 equal groups consisting of 20 people (10 with MBs — the main group; 10 without MBs — the comparison group), one of which underwent speckle tracking echocardiography (STE), and the other — stress CT perfusion performed (adenosine triphosphate 160 mg/kg). The results were assessed in accordance with the 17-segment classification of LV proposed by the American Heart Association (2002).Results. When performing STE, 5 (50%) patients with MBs showed a decrease in LV local strain in the segments, the blood supply of which comes from the LAD artery and its branches, while in the comparison group — 1 (10%) (x2=5; p=0,025). When assessing the global longitudinal peak strain (GLPS), a significant difference was revealed among the study groups, amounting to -20,9±1,5% in patients with MBs and -22,1±0,9% in those without MBs (p=0,04). Using ROC analysis, the effectiveness of GLPS in prediction of asymptomatic MBs was calculated as follows: AUC=0,93 (95% confidence interval: 0,819-1,0; p=0,001), the cut-off point — -20,55% (sensitivity 80%, specificity 100%). According to CT perfusion data, impaired myocardial blood supply in the group of asymptomatic patients with MBs was noted in 6 (60%) cases, and in the comparison group — 2 (20%) (x2=9,8; p=0,002).Conclusion. Imaging of initial LV changes according to two-dimensional STE and detection of coronary circulatory disorders according to CT myocardial perfusion in asymptomatic patients with MBs makes it possible to timely suspect intramyocardial course of the coronary artery, as well as to consider further management tactics and carry out early prevention of possible cardiovascular events.
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language Russian
publishDate 2024-08-01
publisher «FIRMA «SILICEA» LLC
record_format Article
series Российский кардиологический журнал
spelling doaj-art-ca427f8c9f164a37b3bed4e008f89c952025-08-20T03:43:46Zrus«FIRMA «SILICEA» LLCРоссийский кардиологический журнал1560-40712618-76202024-08-0129710.15829/1560-4071-2024-58894156Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridgesN. T. Mirzoev0K. S. Shulenin1G. G. Kutelev2T. G. Tedeev3D. V. Cherkashin4V. V. Ivanov5Clinical Navy Hospital № 1469S.M. Kirov Military Medical AcademyS.M. Kirov Military Medical AcademyS.M. Kirov Military Medical AcademyS.M. Kirov Military Medical AcademyS.M. Kirov Military Medical AcademyAim. To evaluate the effectiveness of left ventricular (LV) peak global longitudinal strain and potential of computed tomography myocardial perfusion (CT perfusion) for the early diagnosis of asymptomatic patients with myocardial bridges (MBs).Material and methods. Forty patients were examined (20 with asymptomatic MBs in the area of the left anterior descending (LAD) artery and 20 without MBs) at the S. M. Kirov Military Medical Academy in the period from 2021 to 2023. The patients were divided into 2 equal groups consisting of 20 people (10 with MBs — the main group; 10 without MBs — the comparison group), one of which underwent speckle tracking echocardiography (STE), and the other — stress CT perfusion performed (adenosine triphosphate 160 mg/kg). The results were assessed in accordance with the 17-segment classification of LV proposed by the American Heart Association (2002).Results. When performing STE, 5 (50%) patients with MBs showed a decrease in LV local strain in the segments, the blood supply of which comes from the LAD artery and its branches, while in the comparison group — 1 (10%) (x2=5; p=0,025). When assessing the global longitudinal peak strain (GLPS), a significant difference was revealed among the study groups, amounting to -20,9±1,5% in patients with MBs and -22,1±0,9% in those without MBs (p=0,04). Using ROC analysis, the effectiveness of GLPS in prediction of asymptomatic MBs was calculated as follows: AUC=0,93 (95% confidence interval: 0,819-1,0; p=0,001), the cut-off point — -20,55% (sensitivity 80%, specificity 100%). According to CT perfusion data, impaired myocardial blood supply in the group of asymptomatic patients with MBs was noted in 6 (60%) cases, and in the comparison group — 2 (20%) (x2=9,8; p=0,002).Conclusion. Imaging of initial LV changes according to two-dimensional STE and detection of coronary circulatory disorders according to CT myocardial perfusion in asymptomatic patients with MBs makes it possible to timely suspect intramyocardial course of the coronary artery, as well as to consider further management tactics and carry out early prevention of possible cardiovascular events.https://russjcardiol.elpub.ru/jour/article/view/5889myocardial bridgedevelopmental anomalycomputed tomographymyocardial perfusionechocardiographyspeckle tracking
spellingShingle N. T. Mirzoev
K. S. Shulenin
G. G. Kutelev
T. G. Tedeev
D. V. Cherkashin
V. V. Ivanov
Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges
Российский кардиологический журнал
myocardial bridge
developmental anomaly
computed tomography
myocardial perfusion
echocardiography
speckle tracking
title Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges
title_full Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges
title_fullStr Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges
title_full_unstemmed Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges
title_short Two-dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion: potential for early imaging of asymptomatic patients with myocardial bridges
title_sort two dimensional speckle tracking echocardiography and stress computed tomography myocardial perfusion potential for early imaging of asymptomatic patients with myocardial bridges
topic myocardial bridge
developmental anomaly
computed tomography
myocardial perfusion
echocardiography
speckle tracking
url https://russjcardiol.elpub.ru/jour/article/view/5889
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