نتایج جستجو برای: left ventricular diastolic function

تعداد نتایج: 1529964  

Journal: :the journal of tehran university heart center 0
mohammad reza dehghani seyyed-o-shohada heart hospital, uromieh university of medical sciences, uromieh, iran. azam soleimani chamran heart hospital, isfahan university of medical sciences, isfahan, iran. mohammad reza samiei nasab chamran heart hospital, isfahan university of medical sciences, isfahan, iran.

background: ventriculoatrial (va) conduction has an important role in the initiation and maintenance of some arrhythmias. the aim of this study was to evaluate whether clinical and electrophysiological parameters of atrioventricular (av) conduction can predict va conduction. methods: detailed demographic, electrocardiographic, and echocardiographic data were recorded in 54 consecutive patients ...

Journal: :British heart journal 1973
P A Chandraratna P M Shah D H Kramer R J Davis B F Schreiner

Atrial tachy-pacing was performed in 34 patients who were divided into 3 groups as follows. Group I: 4 patients with obscure chest pain syndromes and normal coronary arteries and haemodynamics; Group 2: 25 patients with significant coronary artery disease and angina pectoris; Group 3: 5 patients with coronary artery disease, left ventricular aneurysm, and left ventricular dysfunction. Pacing pr...

Journal: :Circulation 1985
J D Carroll O M Hess H O Hirzel M Turina H P Krayenbuehl

Left ventricular systolic and diastolic function were studied before and after surgical revascularization in a group of 24 patients with stable angina who all had an excellent clinical response to surgery. With use of micromanometer left ventricular pressure measurements and ventricular volumes, calculated from biplane cineangiograms, left ventricular function at rest and during exercise before...

2015
Nahid Salehi Mohammadreza Saidi Alireza Rai Farid Najafi Seedmokhtar Javeedannejad Mehran Babanejad Hooman Tadbiri

BACKGROUND There is considerable disagreement over the effects of percutaneous coronary intervention (PCI) on left ventricular diastolic function that has necessitated the investigation of diastolic indices. The present study was conducted to evaluate left ventricular diastolic function and its indices, three months after performing the PCI procedure in patients with coronary artery disease (CA...

حجت مرتضائیان, , سید محمود معراجی, , محمد یوسف اعرابی مقدم, ,

Background: Tetralogy of Fallot is the most common cyanotic congenital heart disease. The systolic and diastolic function in both ventricles is altered even after successful corrective surgery for this defect with a transannular patch. Pulmonary regurgitation, a common complication after this treatment, is usually well tolerated in childhood. The aim of this study was to assess the combined dia...

Journal: :the journal of tehran university heart center 0
soheila dabiran faculty of medicine, medical sciences/university of tehran, tehran, iran. parichehr tootoonchi faculty of medicine, medical sciences/university of tehran, tehran, iran. amir sasan tootoonchi pediatrics, medical sciences/university of tehran, tehran, iran. gholamhasan khosravi faculty of medicine, medical sciences/university of tehran, tehran, iran. ahmad mohebi shaheed rajaie cardiovascular medical and research center, tehran, iran. hamidreza goodarzynejad tehran heart center, medical sciences/university of tehran, tehran, iran.

background: severe and prolonged physical training is associated with morphological and physiological cardiac changes, often termed as the “athlete’s heart”. echocardiographic features peculiar to elite iranian athletes have not been previously described. the aim was to examine the echocardiographic characteristics of highly trained iranian athletes involved in three different sports.   methods...

Journal: :British heart journal 1979
M Ahmad K A Hallidie-Smith

This echocardiographic study was designed to assess left ventricular function and pulmonary blood flow in ventricular septal defect. Fifty-one patients aged 2 weeks to 21 years were investigated (group 2). Five of 10 operated patients were studied one week after surgical closure of the defect (group 3) and seven 3 to 6 weeks postoperatively (group 4). The control group consisted of 45 normal su...

2017
Haotian Gu Ye Li Henry Fok John Simpson Jonathan C. Kentish Ajay M. Shah Philip J. Chowienczyk

Impaired shortening deactivation of cardiac myocytes could sustain myocardial contraction, preserving ejection fraction at the expense of diastolic dysfunction. We examined the relationship between first-phase ejection fraction (EF1), the fraction of left ventricular volume ejected from the start of systole to the time of the first peak in left ventricular pressure (corresponding to the time of...

2005
ROBERT 0. BONOW DINo F. VITALE STEPHEN L. BACHARACH TERRI M. FREDERICK KENNETH M. KENT MICHAEL V. GREEN

Left ventricular diastolic filling is impaired in many patients with coronary artery disease and normal left ventricular systolic function, and is improved in many patients after coronary angioplasty (PTCA). To investigate the mechanisms for this improvement, we studied regional asynchrony by radionuclide angiography in 26 patients with single-vessel coronary artery disease before and after suc...

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