Key result
The modified Tei index by tissue Doppler imaging correlated negatively with systolic displacement and E' displacement in patients with acute Kawasaki disease.
Why the study?
Does the modified Tei index using tissue Doppler imaging effectively evaluate global cardiac function in patients in the acute phase of Kawasaki disease?
Observational (n=48)
Does the modified Tei index using tissue Doppler imaging effectively evaluate global cardiac function in patients in the acute phase of Kawasaki disease?
The modified Tei index using tissue Doppler imaging correlates with myocardial displacement parameters in the acute phase of Kawasaki disease, suggesting potential utility in evaluating global cardiac function.
May support modified Tei index for global function assessment in acute Kawasaki disease; leaves open prospective validation before clinical use.
Purpose: A quantitative and easily measured Doppler index of combined systolic and diastolic ventricular myocardial performance (Tei index) was recently proposed as a potentially useful predictor of global myocardial performance. However, presence of heart rate fluctuation makes it unreliable. Therefore, the modified Tei index was introduced by using tissue Doppler imaging (TDI) which enables measuring contraction and relaxation velocities from myocardium simultaneously. The purpose of this study was to investigate the effectiveness of the modified Tei index in the evaluation of global cardiac function. Methods: Forty eight patients in the acute phase of Kawasaki disease (KD) were studied. These patients were divided into two groups according to the modified Tei index. TDI and conventional echocardiography were performed. Systolic velocity, systolic displacement, E ' velocity, E ' displace-ment, A ' velocity and A ' displacement were measured at the base, mid-septum and the apex of the interventricular septum. Ejection fraction (EF), Tei index and modified Tei index were estimated. Results: Modified Tei index correlated negatively with systolic displacement, E ' displacement and
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Kim et al. (2006) conducted an observational in Kawasaki disease (n=48). Modified Tei index by tissue Doppler imaging was evaluated on Correlation with systolic displacement and E' displacement. The modified Tei index by tissue Doppler imaging correlated negatively with systolic displacement and E' displacement in patients with acute Kawasaki disease.
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