Objective:1．Heart structure and left ventricular diastolic function of overweight andobese groups was detected by Echocardiography to investigate effect of obesityon the cardiac structure and left ventricular(LV)diastolic function2．Comparing sensitivity of all the indexes evaluating LV diastolic function.3．To detect changes of heart structure and left ventricular diastolic function in overweight and obese people by Echocardiography as soon [...]
ObjectiveTo explore the value of tissue Doppler imaging(TDI) in the evaluation of diastolic and systolic function in both left and right ventricles in patients of uremia, observed the change of heart function of uremic patients, which will be benefit for clinial treatment and further prognosis.MethodsTotally forty uremic patients and forty healthy individuals were enrolled. By [...]
Objective:To evaluate left ventricular regional diastolic and systolic function in patients with hypertrophic cardiomyopathy (HCM) by echocardiography.Methods: 40 patients with hypertrophic cardiomyopathy and 40 healthy subjects were performed by pulsed wave Doppler (PWD) ,TDI, strain (S) and strain rate imaging (SRI). The atrioventricularva1ves inflow velocity (E wave and A wave) by PWD and the atrioventricularva1ves [...]
Objective: To evaluate synchronization of interventricular contraction and intra-right ventricular contraction using the Tissue Doppler Imaging (TDI) and to investigate right ventricular function in patients with hypertrophic cardiomyopathy (HCM).Methods: 33 cases of patients with hypertrophic cardiomyopathy (22 men, 11women, mean age 53.5±11.7y ) were selected as HCM group and 23 cases of healthy volunteers (men [...]
Background Cardiac resynchronization therapy (CRT) refractory heart failure is the significant progress non-drug therapy, and its effectiveness and safety has been more than domestic clinical trials, but still have 1/3CHF clinical treatment of patients with no response to CRT. Now that the dynamic optimization AV/VV interphase can improve the curative effect of CRT. Tissue doppler [...]
BackgroundPrimary hypertension is one of the most common cardiovascular disease and is a major public health problem worldwide. According to epidemiological studies hypertension is an independent risk factor for stroke and coronary heart disease. There are about 50 million people suffering from hypertension in the United States and in Japan about 60% of the people [...]
Objective:To evaluate the relation between the atrial conduction interval and Angiotensin II receptor blocker by Tissue Doppler Imaging to reseach the possible mechanism of these drugs to reduce atrial fibrillation.And to discuss the application for TDI in cardiac electrophysiology research.Materials and Methods:In study we select 60 hypertensive inpatients or outpatients accorded with the inclusion in [...]
BackgroundHypertrophic cardiomyopathy (HCM) is a familial idiopathic cardiomyopathy of genetic predisposition.The typical pathological changes are the increase of myocardial cells, the disorder of muscle fibers and the interstitial fibrosis in myocardium. Thus the changes result in the increase in stiffness of cardiac muscle, the dysfunction of left ventricular active diastole, the decrease of left ventricular [...]
Objective To explore the value of tissue doppler imaging(TDI) in the evaluation of left and right ventricular function in patients with end-stage renal disease (ESRD) .Methods 31 patients with ESRD and 31 healthy subjects were studied in the article.The patients with ESRD were measured connective parameters 30 minues after hemodialysis and before hemodialysis .Left atrium [...]
Objective:Several indexes such as the Tei index and the systolic mitral annular velocities were measured,to evaluate the clinical value of the Tissue Doppler Imaging in assessing the left ventricular systolic and diastolic function of the essential hypertensive patients with different left ventricular geometry.Method:212 patients with essential hypertension were enrolled,and 108 patients were men with the [...]
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