Differentiation of pseudodyskinesis of inferior left ventricular wall from inferior myocardial infarction by assessment of regional myocardial strain using two-dimensional speckle tracking echocardiography

Kataoka, Akihisa; Funabashi, Nobusada; Yajima, Rei; Takahashi, Maiko; Takahashi, Atsuo; Saito, Mariko; Yamaguchi, Chiharu; Imaeda, Taro; Lee, Kwang-Ho; Komuro, Issei

doi:10.1016/j.ijcard.2010.08.006

Cited by 8 publications

(1 citation statement)

References 33 publications

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“…Показано, что у лиц с ИМ высокую чувствительность и специфичность при диагностике трансмуральных сегментов по МРТ имеет значение сегментарной продольной деформации более -12%, акинетичных сегментов по эхокардиографии --13,3%, гипокинетичных сегментов ЛЖ по эхокардиографии --16,8% [23,24]. При дискинезе стенки ЛЖ в отсутствие коронарного атеросклероза, например при стрессовой кардиомиопатии и псевдодискинезе на фоне сдавления нижней стенки ЛЖ диафрагмой, показатели сегментарной деформации остаются в норме [26,27]. В то же время при нестабильной стенокардии стеноз более 70% правой коронарной и огибающей артерий снижал продольную сегментарную деформацию соответственно базального нижнего (с -19 до -12,5%) и базального бокового (с -21 до -14%) сегментов ЛЖ в отсутствие нарушения локальной сократимости [25].…”

Section: Note * -P<005 Compared To the Control Groupunclassified

Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography

Akramova¹,

Vlasova²

2021

Russian Medical Inquiry

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Aim: to assess the results of speckle tracking echocardiography (STE) in patients of working age with acute inferior wall myocardial infarction (MI) in the early period after coronary stenting. Patients and Methods: STE was performed using EPIQ-7 Ultrasound Machine (Philips, USA) in 55 patients with acute inferior wall MI one week after percutaneous coronary intervention and 29 healthy individuals of working age. Patients with acute inferior wall MI were divided into two subgroups, i.e., with (n=45) or without (n=10) areas of local contractile impairment (dyskinesia, akinesia, hypokinesia). Results: the most common cause of MI was the occlusion of the right coronary artery (82.4% in subgroup 1 and 60% in subgroup 2) in multivascular involvement (84.4% and 90%. respectively). In patients with local contractile impairment, reduced left ventricular ejection fraction (EF) was reported in 28.9%, global longitudinal strain in 86.7%, and global circular strain in 76.7%. Meanwhile, in patients without local contractile impairment, left ventricular ejection fraction (LV EF) was within normal ranges, global longitudinal strain was reported in 100% and global circumferential strain in 70%. The presence and severity of local dysfunction did not affect the reduction in segmental strain (median varied from -9% to -15%). In inferior wall MI, the abnormal regional longitudinal strain of 6 LV segments (basal and mid inferoseptal, inferior, and inferolateral) was reported in both hypokinesia and normokinesia. Conclusions: ultrasound evaluation of systolic LV function using STE is characterized by greater diagnostic value compared to the measurement of EF only and objectifies the efficacy of surgery. Quantitative assessment of the recovery of both global and local systolic contractility is another advantage of STE allowing for personalized treatment. KEYWORDS: inferior wall myocardial infarction, echocardiography, speckle tracking technology, percutaneous coronary intervention, ejection fraction. FOR CITATION: Akramova E.G., Vlasova Е.V. Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography. Russian Medical Inquiry. 2021;5(4):169–175 (in Russ.). DOI: 10.32364/2587-6821-2021-5-4-169-175.

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Section: Note * -P<005 Compared To the Control Groupunclassified

Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography

Akramova¹,

Vlasova²

2021

Russian Medical Inquiry

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Longitudinal and Circumferential Strain in Patients with Regional LV Dysfunction

Bansal

Sengupta

2013

Curr Cardiol Rep

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The multilayer, helical arrangement of myofibers within the left ventricular myocardium forms the fundamental basis of the complex, multidimensional deformation of the left ventricle during the cardiac cycle. Echocardiographic characterization of the different components of this dynamic process not only provides a means to quantify the myocardial contractile function but also facilitates improved understanding of the pathophysiological mechanisms. Longitudinal deformation, which is more sensitive to the cardiac pathologies and is also easier to measure, has emerged as a reliable measure of the extent of the myocardial damage and may be helpful in the diagnosis and management of the patients with regional left ventricular dysfunction. Circumferential deformation, on the other hand, is affected relatively late in the disease process and therefore serves mainly as a marker of the transmural extent of the damage.

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Could quantitative longitudinal peak systolic strain help in the detection of left ventricular wall motion abnormalities in our daily echocardiographic practice?

Benyounes

Lang

Gout

et al. 2016

Archives of Cardiovascular Diseases

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Differentiation of pseudodyskinesis of inferior left ventricular wall from inferior myocardial infarction by assessment of regional myocardial strain using two-dimensional speckle tracking echocardiography

Cited by 8 publications

References 33 publications

Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography

Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography

Longitudinal and Circumferential Strain in Patients with Regional LV Dysfunction

Could quantitative longitudinal peak systolic strain help in the detection of left ventricular wall motion abnormalities in our daily echocardiographic practice?

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