Details

Autor(en) / Beteiligte

• Lu, Juan
• Dai, Min
• Qian, Da-jun
• Zhang, Chang-ying
• Cao, Li-jun
• Wang, Ru-xing

Titel

The impact of cardiac resynchronization therapy on left ventricular diastolic function evaluated by speckle tracking imaging in patients with dilated cardiomyopathy

Ist Teil von

• Zhōnghuá xīnxuèguănbìng zázhì, 2013-11, Vol.41 (11), p.940

Ort / Verlag

China

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• To investigate the effects of cardiac resynchronization therapy (CRT) on left ventricular (LV) diastolic function measured by speckle tracking imaging (STI) in patients with dilated cardiomyopathy (DCM). CRT was performed in 21 DCM patients [15 male, mean age: 61.2 ± 11.2 (49-82) years].LV synchronization, LV systolic function and LV diastolic function were evaluated with conventional echocardiography, tissue Doppler imaging and STI before and 6 months after CRT.NYHA heart function was also assessed. Clinic Response to CRT was defined as improvement of more than 1 NYHA class.Response to CRT in echocardiography was defined as ≥ 15% reduction in LV end systolic volume at 6 months post CRT. There were 16 responders and 5 non-responders at 6 months post CRT.In terms of diastolic function, conventional echocardiography derived deceleration time was both prolonged in non-responders and responders. At 6 months post CRT, STI derived LV isovolumetric diastolic strain rate [(0.19 ± 0.11) /s vs.(0.14 ± 0.09)/s, P < 0.00