Effect of Coronary Slow Flow on the Longitudinal Left Ventricular Function Assessed by 2‐Dimensional Speckle‐Tracking Echocardiography

Narimani, Sima; Hosseinsabet, Ali; Pourhosseini, Hamidreza

doi:10.7863/ultra.15.05075

Cited by 15 publications

(33 citation statements)

References 41 publications

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“…Thirty-six cases for the patient group and 36 cases for the control group – matched for age, sex, hypertension, and diabetes mellitus in a 1:1 patient:control design – were selected from a study by Narimani et al .,[ 17 ] who published their results on the 2DSTE assessment of the LV systolic and diastolic functions in the CSFP. Briefly, the authors evaluated 36 patients from 200 patients with the CSFP based on the recommendations of Gibson et al .…”

Section: Ethodsmentioning

confidence: 99%

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Is left atrial function affected by coronary slow flow? a two-dimensional speckle-tracking echocardiographic study

Fallah

Narimani

Yarmohammadi

et al. 2017

J Cardiovasc Echography

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Background:The coronary slow flow phenomenon (CSFP) is the slow passage of the angiographic contrast agent to the distal portion of the coronary artery in the absence of significant stenosis. We evaluated the left atrial (LA) function in patients with the CSFP using two-dimensional speckle-tracking echocardiography (2DSTE).Methods:The LA function was compared through 2DSTE between 36 patients with the CSFP and 36 participants with a normal coronary flow. The two groups were matched for age, sex, hypertension, diabetes mellitus, and the left ventricular function.Results:There were no statistically significant differences between the CSFP group and the control group regarding longitudinal systolic strain, early and late diastolic strains, and the strain rate of the LA myocardium.Conclusions:The LA function as evaluated with 2DSTE was not different between the CSFP group and the normal coronary flow group when they were matched for age, sex, hypertension, diabetes, and the left ventricular function.

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Section: Ethodsmentioning

confidence: 99%

“…We used the echocardiographic imaging obtained by Narimani et al . [ 17 ] (with permission) to evaluate the LA function. The research proposal was approved by our Institutional Review Board.…”

Section: Ethodsmentioning

confidence: 99%

Is left atrial function affected by coronary slow flow? a two-dimensional speckle-tracking echocardiographic study

Fallah

Narimani

Yarmohammadi

et al. 2017

J Cardiovasc Echography

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“…showed that LV longitudinal systolic strain, SRS, and SRE were reduced in patients with the coronary slow‐flow phenomenon and without CAE. However, in another study where the participants were matched for age, sex, diabetes mellitus, and hypertension in a one‐to‐one patient‐control method, Narimani et al . reported no differences as regards the 2DSTE‐derived indices of LV longitudinal myocardial function.…”

Section: Discussionmentioning

confidence: 97%

“…Two‐dimensional speckle tracking echocardiography (2DSTE) is an angle‐independent method for the evaluation of LV function, including all LV segments . Two‐dimensional STE has been applied to assess LV function in many conditions such as the coronary slow‐flow phenomenon, coronary artery disease, and vitamin D deficiency …”

Section: Introductionmentioning

confidence: 99%

Evaluation of longitudinal left ventricular function in patients with coronary artery ectasia and vitamin D deficiency by 2D speckle tracking echocardiography

2017

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“…In addition, most of these studies merely analyzed the LVcontractility without considering the distinction between different layers of the myocardium and pulsatile arterial load condition. 6,7) The LV wall of the heart comprises an endocardial, a midmyocardial, and an epicardial layer. 8) Tissue doppler imaging and magnetic resonance imaging have been used to obtain insight into layer-specific differences in myocardial function.…”

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confidence: 99%

Early Assessment of Left Ventricular Function by Layer-Specific Strain and Its Relationship to Pulsatile Arterial Load in Patients with Coronary Slow Flow

et al. 2019

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Previous studies reported a controversial left ventricular (LV) function impairment and pathophysiology in patients with coronary slow flow (CSF). Greater arterial load has been shown to increase aortic impedance and endothelial shear stress, potentially affecting coronary anatomy and function. We investigated LV systolic function by a new layer-specific strain technology and assessed the association between pulsatile arterial load and contractility. A total of 70 patients with CSF and 50 controls with normal coronary angiography were included in the study. Layer-specific longitudinal and circumferential strains were assessed from endocardium, midmyocardium, and epicardium (global longitudinal strain (GLS)-endo, GLS-mid, GLS-epi and GCS-endo, GCSmid, GCS-epi) by two-dimensional speckle tracking imaging (2D-STI). Pulsatile arterial load was estimated by indexed arterial compliance (ACI). Layer-specific GLS showed a decreasing gradient from the endocardium to the epicardium in both the controls and CSF group. GLS-endo and GLS-mid in the CSF group were significantly lower than the control group (all P < 0.05). Layer-specific longitudinal strain showed a good correlation with the number of affected coronary arteries (all P < 0.05) and the mean thrombolysis in the myocardial infarction frame count (TFC) (all P < 0.05). ACI was lower in patients with CSF (P = 0.005), and ACI was correlated negatively with layer-specific GLS (all P < 0.05). Layer-specific evaluation of the LV provides an understanding of the layer-specific properties of the LV wall and the possible process of the LV impairment in patients with CSF. Greater pulsatile arterial load, as manifested by a lower ACI, is coupled with worse LV longitudinal function in patients with CSF.

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Effect of Coronary Slow Flow on the Longitudinal Left Ventricular Function Assessed by 2‐Dimensional Speckle‐Tracking Echocardiography

Abstract: Our results showed that the coronary slow flow phenomenon could not impair the longitudinal LV systolic and diastolic functions.

Cited by 15 publications

References 41 publications

Is left atrial function affected by coronary slow flow? a two-dimensional speckle-tracking echocardiographic study

Is left atrial function affected by coronary slow flow? a two-dimensional speckle-tracking echocardiographic study

Evaluation of longitudinal left ventricular function in patients with coronary artery ectasia and vitamin D deficiency by 2D speckle tracking echocardiography

Early Assessment of Left Ventricular Function by Layer-Specific Strain and Its Relationship to Pulsatile Arterial Load in Patients with Coronary Slow Flow

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