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. 2024 Sep 28;76(1):132.
doi: 10.1186/s43044-024-00566-3.

Evaluation of right ventricular functions in patients with ischemic cardiomyopathy by speckle-tracking echocardiography

Affiliations

Evaluation of right ventricular functions in patients with ischemic cardiomyopathy by speckle-tracking echocardiography

Reham Mohamed Darweesh et al. Egypt Heart J. .

Abstract

Background: It is widely recognized that the right ventricle plays a significant role in the prognosis of numerous diseases. However, the assessment of right ventricular function (RV) has not been given much attention until recently. This study used speckle-tracking echocardiography (STE) to assess RV functions in ischemic cardiomyopathy (ICM) patients.

Results: This study included 74 patients diagnosed with ischemic cardiomyopathy (ICM) and an ejection fraction (EF) of less than 50%. Although all the selected patients had normal RV systolic function by tricuspid annular plane systolic excursion (TAPSE), a considerable percentage of them had subtle RV systolic dysfunction, which could be identified by right ventricular free wall longitudinal strain (RV FWLS) (36.5%) and right ventricular global longitudinal strain (RV GLS) (55.4%). Moreover, the mean RV FWLS was significantly higher than RV GLS (- 20.4 ± 5.08% vs. - 17.5 ± 6.89%), respectively. Advanced left ventricle (LV) adverse remodeling was associated with subtle RV dysfunction. Using multivariate regression analysis, increased E/e' (p = 0.016, CI 1.135-3.423) and RV myocardial performance index (MPI) (p = 0.007, CI 0.000-0.007) were identified as independent factors of impaired RV FWLS with the greatest effectiveness.

Conclusion: When standard RV measures are normal in patients with ICM, RV systolic strain analysis offers an incremental utility to detect subtle abnormalities in RV function, especially in resource-constrained settings where cardiac magnetic resonance (CMR) is not practical.

Keywords: Ischemic cardiomyopathy; Right ventricle; Speckle-tracking echocardiography.

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Conflict of interest statement

The authors declare that there is no conflict of interest.

Figures

Fig. 1
Fig. 1
The measurement of RV GLS and RV FWLS from apical 4-chamber view. A 60-year-old male patient was considered as having normal RV function by TAPSE (2.1 cm); however, RV GLS was − 12.3% and RV FW PSS was − 17.6%
Fig. 2
Fig. 2
Scatter plots of correlations of RV FWLS to different clinical and echocardiographic parameters
Fig. 3
Fig. 3
Correlation between RV GLS and RV FWLS

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