Search Results
Results 301 - 350 of 814
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Kozerke S - - 2001
Comprehensive assessment of the severity of valvular insufficiency includes quantification of regurgitant volumes. Previous methods lack reliable slice positioning with respect to the valve and are prone to velocity offsets due to through-plane motion of the valvular plane of the heart. Recently, the moving slice velocity mapping technique was proposed. ...
Tribouilloy C M - - 2001
PURPOSE: We sought to determine the importance of a third heart sound (S(3)) and its relation to hemodynamic and valvular dysfunction. SUBJECTS AND METHODS: We prospectively enrolled 580 patients who had isolated valvular regurgitation (mitral, n = 299; aortic, n = 121) or primary left ventricular dysfunction with or without ...
Naidoo D P - - 2001
The decline in rheumatic fever has made heart disease in pregnancy an uncommon problem in the developed world but it remains an important cause of maternal morbidity and mortality in developing countries. Pregnancy is particularly dangerous in the presence of cyanotic congenital heart disease, Eisenmenger's syndrome, primary pulmonary hypertension, Marfan's ...
Lepper W - - 2001
OBJECTIVE: To investigate whether intravenous injection of SHU 508 A improves the diagnostic accuracy of Doppler echocardiography in the assessment of valvular pathologies. METHODS AND RESULTS: One hundred and twenty-five consecutive patients with valvular pathology (aortic stenosis, n = 48; aortic regurgitation, n = 20; mitral stenosis, n = 21; ...
Genoni M - - 2001
BACKGROUND AND AIM OF THE STUDY: Prosthetic mitral valve replacement (MVR) is associated with paravalvular leak in up to 12.5% of patients. The influence of the morphology and location of paravalvular leaks on clinical symptoms and degree of leak-related hemolysis is unknown. METHODS: Morphology, size, location and number of paravalvular ...
de Souza J A - - 2001
OBJECTIVES: We sought to compare the maternal and fetal outcomes of patients with severe mitral stenosis submitted to percutaneous balloon dilation versus open mitral valve commissurotomy (MVC) during pregnancy. BACKGROUND: Heart failure in patients with mitral stenosis complicating pregnancy is a common problem in developing countries. Since 1984, percutaneous dilation ...
Soylu M - - 2001
Carotid artery atherosclerosis is a strong predictor of stroke and represents a potential source of cerebral emboli. The aim of this study was to investigate whether an association exists between mitral annular calcification and carotid atheroma. In addition, the characteristics of carotid atheromas were compared between patients with and without ...
Chu P H - - 2001
BACKGROUND: We attempted to evaluate the prevalence of coronary artery disease in Chinese adults with severe rheumatic mitral stenosis. METHODS: We prospectively performed coronary angiography in 119 consecutive Chinese patients older than 40 years old (mitral valve area less than 1.5 cm2) who were about to undergo balloon mitral commissurotomy ...
Lee A Y - - 2001
A 42-year-old woman with chronic mitral stenosis was admitted for progressive dyspnea, palpitation, and weakness of lower extremities. Echocardiography revealed rheumatic, thickened, and stenotic mitral and aortic valves, and two free-floating ball thrombi were detected in the left atrium and ventricle, respectively. She died suddenly the next day, probably due ...
Nishikimi T - - 2001
Adrenomedullin (AM), a novel hypotensive peptide, preferentially dilates pulmonary vessels rather than systemic vessels. This suggests the possibility that AM is a circulating hormone which participates in regulation of the pulmonary circulation. A recent study revealed that two molecular forms of AM, i.e. a mature, active form of AM (AM-m) ...
Simkova I - - 2001
The aims of the study is to demonstrate the degree of pulmonary function reversibility after successful correction of mitral stenosis, transvenous as well as surgical. Before and in the short- and long-term follow-up after mitral stenosis correction (mitral valve replacement and percutaneous balloon mitral valvuloplasty) echocardiographic and pulmonary function studies ...
Ginon I - - 2000
We report the case of a 70-year-old woman with rheumatic mitral stenosis and a transient ischaemic attack. Transoesophageal echocardiography revealed a cystic mass in the right atrium, hanging to the interatrial septum by a pedicle, not circulating. The mass was heterogeneous and suggested a tumour (myxoma) or a thrombus. Surgical ...
Kiatchoosakun S - - 2000
To study the results and complications of Percutaneous Balloon Mitral Valvulotomy with Transesophageal Echocardiographic monitoring in patients with symptomatic mitral stenosis. From November 1996 to November 1998, PBMV with TEE monitoring was performed in 107 patients with symptomatic mitral stenosis. There were 72 females and 35 males, aged 19 to ...
Carstensen S - - 2000
This study was undertaken to establish normal values for the systolic atrioventricular plane motion (AVPM) from base to apex during dobutamine-atropine stress echocardiography (DASE) and to compare them with those of patients with coronary artery disease. The AVPM was measured at baseline, low dose and peak dobutamine-atropine infusion in 20 ...
Stepien R L - - 2000
M-mode and Doppler echocardiographic values were obtained from 30 normal adult ferrets (14 neutered females, 13 neutered males, 3 intact males) sedated with an intramuscular combination of ketamine hydrochloride and midazolam. Routine M-mode measurements of the left and right ventricle, left atrium (LA) and aorta (AO) and Doppler measurements of ...
Goldsmith I R - - 2000
BACKGROUND: Immediately following percutaneous balloon mitral valvuloplasty (PBMVP), patients have a 3% risk of systemic thromboembolism. HYPOTHESIS: We hypothesized that this may in part be due to an increase in hypercoagulability (as indicated by abnormal coagulation, platelet activation, and endothelial dysfunction) in such patients. METHODS: We measured indices of platelet ...
Saha G K - - 2000
The incidence of left atrial (LA) spontaneous echo contrast (SEC) and the clinical and echocardiographic variables related to it were prospectively evaluated in a series of 60 patients with mitral stenosis (MS) undergoing transoesophageal echocardiography (TEE) with a 5 MHz multiplane transducer. LA-SEC was found in 39 patients (65%) employing ...
Yoshida M - - 2000
The first case was of a 27-year-old female, who was diagnosed as having mitral valve stenosis with regurgitation, systemic lupus erythematosus and antiphospholipid syndrome at her previous pregnancy. We performed mitral valve plasty, which included open mitral commissurotomy and Kay's annulo plasty. The second case was of a 53-year-old female, ...
Tomimoto S - - 2000
We encountered a case of mitral stenosis, complicated with non-bacterial thrombotic endocarditis, that developed after percutaneous transvenous mitral commissurotomy (PTMC). A 71-year-old female Japanese patient had severe congestive heart failure and underwent PTMC for critical and severely calcified mitral stenosis. Four weeks later, the echocardiogram demonstrated a highly echoic protrusion ...
Rishniw M - - 2000
Prevalence of pulmonary regurgitation in normal adult dogs (n=30) was established by color Doppler echocardiographic evaluation. Pulmonary regurgitation was detected in 93% of dogs. Most dogs had regurgitation jets subjectively classfied as "trace" or "mild". Objective methods of classification of the regurgitation jets based on absolute measurements (mm; mm(2)) or ...
Evangelista A - - 2000
BACKGROUND: Although different Doppler methods have been validated for aortic regurgitation quantification, the benefit of combining information from different methods has not been defined. METHODS: Our study included 2 phases. In the initial phase (60 patients), Doppler parameters (jet width, short-axis jet area, apical jet area, regurgitant fraction from pulmonary ...
Feldman T - - 2000
Patients with symptomatic mitral stenosis should undergo evaluation with transthoracic and transesophageal echocardiography (Table 1). Those patients with suitable valve morphology should be treated with percutaneous transvenous mitral commissurotomy (PTMC). Randomized trials of catheter commissurotomy have shown no differences in long-term outcome compared with surgical commissurotomy; there is therefore no ...
Lesieur O - - 2000
One aetiology of unilateral pulmonary oedema is mitral valve disease. We report three cases of right pulmonary oedema caused by acute mitral regurgitation. These reports underline the diagnostic value of transoesophageal echocardiography, which rapidly visualised severe mitral regurgitation with retrograde jet directed toward the right pulmonary veins. Two patients underwent ...
Srinivasa K H - - 2000
The studies of pulmonary venous flow-pattern in mitral stenosis (MS) have given conflicting data about the type of abnormality. This study was undertaken to assess the pulmonary venous flow-pattern in severe MS and to study the changes occurring after balloon mitral valvuloplasty (BMV). There were 51 patients of MS with ...
Zannolli R - - 2000
A 7-year-old boy was referred because of a sudden change to nasal speech, dysarthria for words with explosive consonants in speech, and nasal regurgitation of fluids. The symptoms arose over 1 week following a capricious episode of acute asthmatic bronchitis. Physical and neurologic examinations were normal except for a left ...
Safi A M - - 2000
Percutaneous balloon mitral valvuloplasty (PBMV) provides an effective alternative to surgery in a selective group of patients with symptomatic mitral stenosis. The Inoue balloon technique involves transseptal catheterization followed by catheter manipulation to cross the mitral valve. The authors describe a case of successful percutaneous balloon mitral valvuloplasty in a ...
Snopek G - - 2000
BACKGROUND AND AIM OF THE STUDY: The rise of pressure in the pulmonary circulation during the course of mitral stenosis leads to pathomorphological changes and a reduction in vascular compliance. Endothelial dysfunction is also promoted, with increased expression of endothelin. This aim of this study was to evaluate whether the ...
Turiel M - - 2000
OBJECTIVE: Valvular lesions are frequently present in Primary Antiphospholipid Syndrome (PAPS) patients using transthoracic and/or transesophageal echocardiography. The aim of this study was to describe the prevalence of cardiac abnormalities (valvular thickening and/or regurgitation) or potential embolic sources (spontaneous echocontrast and/or vegetations) in PAPS patients. METHODS: Multiplane transesophageal echocardiography was ...
Roldán F J - - 2000
We report the detection of a thrombus 72 hours after mitral valvuloplasty through the use of the technique of Inoue. Images obtained by transesophageal echocardiography revealed its localization on the interatrial septum at the level of the transseptal puncture. Although the patient subsequently underwent surgery for the placement of a ...
Al-Bezem R - - 1999
The authors report a case of angiographically documented multiple coronary neovascularizations originating from the left circumflex artery (LCX) and coursing toward multiple thrombi located in the left atrium in a patient with severe mitral stenosis. The thrombi as well as the neovascularizations underwent near-complete resolution with 4 weeks' anticoagulation therapy ...
Ngan Kee W D - - 1999
We report the use of combined spinal-epidural analgesia during labour in three parturients with moderately severe mitral stenosis. In each case, rapid analgesia was achieved using intrathecal fentanyl 25 micrograms without major haemodynamic changes. Maintenance analgesia was then established gradually using a dilute epidural infusion of bupivacaine 0.1% and fentanyl ...
Fontes M L - - 1999
OBJECTIVE: To determine the accuracy of conventional hemodynamic assessment using pulmonary artery catheter-derived data in critically ill patients. DESIGN: Cohort study. SETTING: Kaiser Permanente and Veterans Affairs Medical Centers. PARTICIPANTS: Twenty-five consecutive patients who had undergone elective aortocoronary bypass surgery. MEASUREMENTS AND MAIN RESULTS: In the intensive care unit, conventional ...
Marín F - - 1999
Patients with mitral stenosis in sinus rhythm are in a prothrombotic state and have fibrinolytic dysfunction, shown by an increase in levels of the inhibitor of tissue plasminogen activator, D-dimer, and modified antithrombin III. This state may be observed even in patients without dilated left atria (diameter < or =45 ...
Wang A - - 1999
BACKGROUND: This study evaluated the correlation and variability between noninvasive and invasive measures of mitral stenosis severity before and after balloon mitral commissurotomy (BMC) in a large group of patients with symptomatic mitral stenosis. Factors related to variability between measurements were determined. METHODS: The Doppler transmitral gradient, Doppler half-time valve ...
Yang P Y - - 1999
Cardiac catheterization and percutaneous transvenous mitral commissurotomy using the Inoue technique were attempted in a 44-year-old woman with mitral stenosis. The pulmonary arterial wedge pressure was 25 mmHg, mean transmitral diastolic pressure gradient 20.3 mmHg, cardiac index 1.80 L/min/m2, and mitral valve area 0.70 cm2. After the diagnostic catheterization, the ...
Yasukochi S - - 1999
We report two autopsy proven cases of unguarded mitral orifice associated with mirror-imaged atrial arrangement, discordant atrioventricular connections, double outlet right ventricle, pulmonary valvar stenosis or atresia, and atrialisation of the morphologically left ventricle. The morphologically left atrioventricular junction was devoid of valvar leaflets, and there was no tension apparatus ...
Guha S - - 1999
Rheumatic mitral stenosis is frequently encountered in our country. It affects younger population and is a major cause of morbidity Mitral valvotomy is the definitive therapy for this disease and can be achieved by closed mitral commissurotomy (CMC), open mitral commissurotomy (OMC) or by percutaneous transluminal mitral valvuloplasty (PTMV). Compared ...
Woolley K - - 1999
Pulmonary parenchymal manifestations of mitral valve disease are the result of either pulmonary venous hypertension in mitral stenosis or abnormal regurgitant flow into pulmonary veins in mitral insufficiency. Typical radiographic findings in mitral stenosis include pulmonary vascular cephalization; interstitial, perivascular, and occasionally alveolar pulmonary edema; diffuse alveolar hemorrhage; hemosiderosis; and ...
Krishnamoorthy K M - - 1999
This study was aimed at estimating mean transmitral gradients by simultaneous Doppler echocardiography and cardiac catheterisation and determining mitral valve area by pressure half time, Gorlin's formula and two-dimensional echocardiography so as to assess the relative accuracy of these methods before and after balloon mitral valvuloplasty in patients with rheumatic ...
Chern M S - - 1999
Percutaneous transvenous mitral commissurotomy using the Inoue technique was performed in a 59-year-old female with mitral stenosis and a severely calcified mitral leaflets. Although not entrapped in the subvalvular apparatus, the balloon catheter was deviated away from the mitral orifice-apex axis of the left ventricle during the inflation of the ...
Ducharme A - - 1999
We report a case of severe aortic regurgitation occurring immediately after the insertion of a mitral annuloplasty ring. On transesophageal echocardiography, regurgitation was found to originate from the retracted left coronary cusp. On direct examination, part of the aortic wall was folded, but no suture could be identified. It was ...
Nosaka S - - 1999
In patients with rheumatic mitral stenosis, intracardiac thrombi are found mostly, for reasons still unknown, in the left atrium. We compared the release of PGI2 from the endocardium of the left atrium with that of the right ventricle and from the endothelium of the pulmonary arteries. Endocardial endothelial cells (EECs) ...
Razzolini R - - 1999
Effective arterial elastance (Ea) is the coupling parameter between the left ventricle and peripheral circulation in normal subjects. If left ventricular end systolic pressure (Pes), contractility (Es) and Ea are known, left ventricular end diastolic volume (LVEDV) and ejection fraction of the ventricle are completely determined. The aim of this ...
Dilek L - - 1999
Eighteen patients with chronic isolated rheumatic mitral regurgitation aged between 7 and 19 years (mean age +/-SD, 12.69+/-3.47 years) were analyzed with color Doppler imaging. Sixteen patients were performed cardiac catheterization within 24 h. Jets were classified as eccentric and central. Regurgitant jet area and its ratio to left atrial ...
Langerveld J - - 1999
AIMS: The purpose of this study is to define predictors of events or restenosis during follow-up after percutaneous mitral balloon valvotomy. METHODS AND RESULTS: Percutaneous mitral balloon valvotomy was attempted in 137 patients with severe mitral valve stenosis. In 127 patients follow-up was complete with a mean of 4.2 +/- ...
Pai Sudha M. - - 1999
Cardiac pacemakers are increasingly used in patients with dilated and hypertrophic cardiomyopathy. In these patients, unusually short atrioventricular (AV) delays are used. Changing the AV delay has been shown to affect the mitral E/A velocity ratio, but its effect on the duration of left ventricular (LV) isovolumic relaxation time, LV ...
De Simone R - - 1999
AIMS: Colour Doppler is the most widely used technique for assessing valve disease, but eccentric regurgitant jets cannot be visualized and measured by conventional 2D techniques. We have developed a new procedure for three-dimensional (3D) reconstruction of colour Doppler signals. METHODS AND RESULTS: Fifty patients with mitral regurgitation underwent transoesophageal ...
Mazur W - - 1999
Balloon mitral valvuloplasty (BMV) for mitral stenosis is a procedure that has evolved significantly since its introduction by Inoue et al. in 1984. This article reviews currently used techniques, advantages, and limitations as well as outcomes in comparison with surgical procedures. Included is a review of imaging techniques that facilitate ...
Serraf A - - 1999
OBJECTIVES: Increased afterload and multilevel LV obstruction is constant. We assumed that restoration of normal loading conditions by relief of LV obstructions promotes its growth, provided that part of the cardiac output was preoperatively supported by the LV, whatever the echocardiographic indexes. BACKGROUND: Whether to perform uni- or biventricular repair ...
Yonga G O - - 1999
OBJECTIVE: To study the effect of percutaneous balloon mitral valvotomy (PBMV) on the deranged systolic and diastolic pulmonary venous flows in mitral stenosis. DESIGN: Open, non-randomised, case-control study. SETTING: Mater Misericordiae Cardiac Catheterisation Laboratory and Kenyatta National Hospital Cardiac Catheterisation Laboratory. PATIENTS: Twelve consecutive patients with severe symptomatic mitral stenosis ...
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