نتایج جستجو برای: right ventricular physiology

تعداد نتایج: 490140  

2005
OBERDAN PARODI Oberdan Parodi

This study describes the clinical experience with four patients with variant angina caused by spasm of the right coronary artery who were assessed for evidence of right ventricular involvement. The patients were suspected of having predominant right ventricular ischemia on the basis of normal thallium-201 scans, left ventricular ejection fraction, regional wall motion assessed by equilibrium ra...

Journal: :The Journal of thoracic and cardiovascular surgery 2016
Sarah T Plummer Christoph P Hornik Hamilton Baker Gregory A Fleming Susan Foerster M Eric Ferguson Andrew C Glatz Russel Hirsch Jeffrey P Jacobs Kyong-Jin Lee Alan B Lewis Jennifer S Li Mary Martin Diego Porras Wolfgang A K Radtke John F Rhodes Julie A Vincent Jeffrey D Zampi Kevin D Hill

OBJECTIVES Aortic arch reconstruction in children with single ventricle lesions may predispose to circulatory inefficiency and maladaptive physiology leading to increased myocardial workload. We sought to describe neoaortic anatomy and physiology, risk factors for abnormalities, and impact on right ventricular function in patients with single right ventricle lesions after arch reconstruction. ...

Background: Right Ventricular (RV) hypertrophy is an adaptive response to chronic RV pressure overload in patients with pulmonary hypertension. We investigated the relationships between RV hypertrophy indicators, including electrocardiography, the percentage oxygen saturation (SaO2%), body mass index (BMI), and blood uric acid levels in patients with...

Journal: :European heart journal cardiovascular Imaging 2013
Peter Munkhammar Marcus Carlsson Håkan Arheden Erkki Pesonen

AIMS To determine whether the restrictive physiology seen in Tetralogy of Fallot (TOF) patients can be explained by fibrosis of the right ventricular (RV) outflow tract. The aetiology for restrictive RV physiology after TOF repair is not known. METHODS AND RESULTS TOF patients (n = 31, 13 girls, 10.2 years ± 2.8) were included 9.2 ± 2.9 years after total correction and examined with cardiac m...

A.R. Moarref M. Zamirian M.B. Sharif Kazemi

A 76-yr-old man with unipolar ventricular pacemaker, previously implanted in the right ventricular apex, presented with syncopal attack and twitching of the right pectoralis muscle. He finally was diagnosed as having Twiddler's syndrome. The patient had a pulse rate of 36/min and cannon waves in the neck veins. Chest radiography showed a dislodged pacing lead completely wrapped around the pulse...

Ali Eshraghi, Mahmoud Mohammadzadeh Shabestri Majid Jalalyazdi, Zahra Alizadeh Sani,

Introduction: The correlation between right and left ventricular ejection fractions (RVEF and LVEF, respectively) has been studied in only a small number of patients with a marked decrease in RVEF and LVEF. The aim of the present study was to compare LVEF and RVEF in patients with ischemic heart disease. RVEF and LVEF were measured by Cardiovascular Magnetic Resonance (CMR) imaging. Materials a...

جعفری, امیرمسعود , صالحی, ناهید , نجفی, فرید , کازرانی, هاشم ,

Background: In patients who undergoing PCI, association between right ventricular function and outcome of the procedure remained unclear. The present study aimed to determine association between echocardiography findings of systolic right ventricular function and functional status of patients following PCI. Methods: In a cross-sectional study conducted at Imam Ali hospital and heart center in ...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1986

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