نتایج جستجو برای: rvmpi

تعداد نتایج: 13  

Journal: :Circulation journal : official journal of the Japanese Circulation Society 2005
Onder Ozturk Mehmet S Ulgen Selahattin Tekes Unal Ozturk Nizamettin Toprak

BACKGROUND The genetic influence on the myocardial performance index is uncertain, so the aim of the present study was to determine the effects of polymorphism of the angiotensin-converting enzyme (ACE) gene on the right ventricular myocardial performance index (RVMPI) after a first acute anterior myocardial infarction (MI). METHODS AND RESULTS The subjects were 116 patients with a first acut...

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2016
Christian R. Hamilton-Craig Kathy Stedman Ryan Maxwell Bonita Anderson Tony Stanton Jonathan Chan Akira Yamada Gregory M. Scalia Darryl J. Burstow

BACKGROUND Many echocardiographic parameters have been proposed to evaluate right ventricular (RV) systolic function. We comprehensively assessed a wide range of quantitative echocardiographic parameters in a single cohort compared with same-day cardiovascular magnetic resonance (CMR). METHODS AND RESULTS 92 subjects were examined prospectively: Group 1 consisted of 46 healthy controls (21 ma...

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Journal: :Thorax 2009
J Y S Chan A M Li C-T Au A F C Lo S-K Ng V J Abdullah C Ho C-M Yu T-F Fok Y-K Wing

BACKGROUND Childhood obstructive sleep apnoea (OSA) is suggested to be associated with cardiac structural abnormalities and dysfunction but existing evidence is limited and the treatment effect on echocardiographic outcome remains controversial. OBJECTIVE To examine the presence of subclinical cardiac abnormalities in childhood OSA and the effects of treatment on cardiac changes. METHODS Po...

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Journal: :medical journal of islamic republic of iran 0
d. javidi tehran university of medical sciences, shariati hospital, cardiac surgery departmentسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) n. saffarian cardiovascular department, khatamol anbia hospital, tehran, iranسازمان اصلی تایید شده: بنیاد شهید و امور ایثارگران

abstract background: right ventricular myocardial performance index (rvmpi) is a doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. the aim of this study is to compare prognostic value of rvmpi with global rv function in patients undergoing coronary artery bypass graft (cabg). methods: in a longitudinal s...

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Journal: Medical Journal of Islamic Republic of Iran 2008
D. Javidi, N. Saffarian,

 Abstract Background: Right ventricular myocardial performance index (RVMPI) is a Doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. The aim of this study is to compare prognostic value of RVMPI with global RV function in patients undergoing Coronary Artery Bypass Graft (CABG). Methods: In a longitudinal ...

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Journal: :Circulation 2004
Omid Salehian Markus Schwerzmann Naeem Merchant Gary D Webb Samuel C Siu Judith Therrien

BACKGROUND Assessment of systemic right ventricular (RV) function is a key point in the follow-up of patients with transposition of the great arteries (TGA). Current echocardiographic assessment of RV function is at best an estimate, and cardiac magnetic resonance (CMR) is considered the gold standard. However, this technique is expensive, has limited availability, and requires significant expe...

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Journal: :medical journal of islamic republic of iran 0
e malakan rad from the department of pediatric cardiology, kashan university of medical sciences, kashan, i.r. iran. n momtazmanesh

doppler-derived myocardial performance index (mpi) , defined as the s um of isovolumetric contraction and relaxation durations divided by ejection time, is an easily measured and reproducible index that shows both systolic and diastolic myocardial function. the goal of this study was to define normal values of right ventricular mpi in neonates in the first 48 to 72 hours of life. fifty-one quie...

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2013
Tao Yang Yu Liang Yan Zhang Qing Gu Guo Chen Xin-Hai Ni Xiu-Zhang Lv Zhi-Hong Liu Chang-Ming Xiong Jian-Guo He

BACKGROUND Echocardiography is the most convenient method used to evaluate right ventricular function, and several echocardiographic parameters were studied in previous studies. But the value of these parameters to assess the right ventricular function in patients with pulmonary arterial hypertension (PAH) has not been well defined. METHODS Patients with PAH were observed prospectively. Right...

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2017
Takahiro Sato Ichizo Tsujino Hiroshi Ohira Noriko Oyama-Manabe Yoichi M Ito Chisa Takashina Taku Watanabe Masaharu Nishimura

BACKGROUND Serial assessment of right ventricular ejection fraction (RVEF) predicts the clinical outcome of patients with pulmonary hypertension (PH). Cardiac magnetic resonance imaging (CMRI) enables RVEF monitoring, but its applicability is limited in clinical practice. This study aimed to examine the correlation between changes in CMRI-derived RVEF with those in echocardiographic indices in ...

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ژورنال: مجله دانشگاه علوم پزشکی شهید صدوقی یزد 2004
سهروردی, سیدرضا, نوری, نورمحمد,

Introduction : Patients with major thalassemia need recurrent transfusions and if not treated are at risk of heart dysfunction. Heart tissue could be abnormal in patients who use desferral continously due to iron deposits , fibrosis , hypertrophy and side effects of chronic anemia. Cardiac involvement is the main cause of morbidity and mortality in major thalassemics, so we decided to improve e...

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