Key result
Tissue Doppler imaging and speckle tracking echocardiography detected early myocardial dysfunction in acute viral myocarditis and demonstrated significant improvement in strain parameters following treatment.
Why the study?
The study was conducted to evaluate the role of tissue Doppler imaging and speckle tracking echocardiography in identifying myocardial dysfunction and evaluating myocardial segmental deformation in acute viral myocarditis.
Can tissue Doppler imaging and speckle tracking echocardiography detect early myocardial dysfunction and evaluate treatment outcomes in acute viral myocarditis?
Observational (n=33)
Can tissue Doppler imaging and speckle tracking echocardiography detect early myocardial dysfunction and evaluate treatment outcomes in acute viral myocarditis?
Tissue Doppler imaging and speckle tracking echocardiography are useful imaging modalities for detecting early myocardial dysfunction and tracking treatment response in acute viral myocarditis.
May aid detection of myocardial dysfunction in pediatric viral myocarditis; leaves open impact on management or outcomes.
Objectives The aim was to evaluate the role of tissue Doppler imaging ( TDI ) and speckle tracking echocardiography ( STE ), to identify myocardial dysfunction, and to evaluate myocardial segmental deformation in acute viral myocarditis. Methods Twenty‐one patients and twelve healthy children were studied prospectively. The TDI and STE were performed before and after treatment. The myocardial velocities (S m , E m , and A m ) and time intervals (isovolumic contraction, isovolumic relaxation, and ejection times [ ET ]) at interventricular septum ( IVS ), left, and right ventricular basal segments were examined by TDI . The left ventricular global longitudinal strain ( LVGLS ) and strain rate ( LVGLSR ), left ventricular global circumferential strain ( LVGCS ) and strain rate ( LVGCSR ), and right ventricular global longitudinal strain ( RVGLS ) and strain rate ( RVGLSR ) were examined by STE . Results S m and E m at IVS and at LV , ET at IVS , ET at RV , ET at LV were significantly lower in patients before treatment than controls. LVGLS , LVGLSR , LVGCS , LVGCSR , RVGLS , RVGLSR were significantly decreased in patients before treatment than controls. There was significant improvement for LVGLS , LVGLSR , LVGCS , LVGCSR , and RVGLS in patients after treatment. S m , E m , and A m at LV were significantly lower in patients before treatment than in patients after treatment. In spite of improvements, S m , E m , and ET at IVS , LVGLS , LVGLSR , LVGCS , LVGCSR were significantly lower in patients after treatment than controls. Conclusions The TDI and STE were useful methods for detection of early myocardial dysfunction and evaluation of treatment outcomes in acute viral myocarditis.
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Gürsu et al. (2019) conducted an observational in Acute viral myocarditis (n=33). Acute viral myocarditis vs. Healthy children was evaluated on Myocardial velocities, time intervals, and strain parameters measured by tissue Doppler imaging and speckle tracking echocardiography. Tissue Doppler imaging and speckle tracking echocardiography detected early myocardial dysfunction in acute viral myocarditis and demonstrated significant improvement in strain parameters following treatment.
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