نتایج جستجو برای: mitral stenosis
تعداد نتایج: 95933 فیلتر نتایج به سال:
The average pulmonary blood volume in normal persons was 211 ml./m.2, in patients with mitral regurgitation 266 mnl./m2, and in those with mitral stenosis 419 ml./m.2 In patients with mitral stenosis the pulmonary blood volume could be related to pulmonary symptoms like exertional dyspnoea, haemoptysis, and paroxysmal nocturnal dyspnoea. Pulmonary blood volume could also be related directly to ...
The speed of closure of the mitral valve during diastole, as recorded by ultrasonocardiography, is reduced in patients with mitral stenosis. A pattern of movement similar to that of severe mitral stenosis is seen in recordingsfrom patients with normally functioning mitral Starr-Edwards prostheses. Simultaneous ultrasound recordings of ball and cage movements show that the prosthetic valve remai...
Intracardiac flow of intravenously injected radiopaque material was studied by means of rapid simultaneous biplane stereoscopic angiocardiography. Intracardiac circulation times thus determined may be found useful in recognizing structural abnormality and in detecting changes in car(liac function. In mitral stenosis, a distinctive, but not specific, pattern was recognized whether or not mitral ...
Introduction: Mitral stenosis is a condition characterized by the narrowing of mitral valve, which regulates blood flow between left atrium and ventricle heart. Objectives: The main objective study to find mid-term clinical echocardiographic outcomes percutaneous transvenous commissurotomy in patients with rheumatic stenosis. Material Methods: present was retrospective observational conducted a...
Of seven patients with pulmonary hypertension, two had marked and one had moderate retardation of the echocardiographic anterior mitral valve leaflet closing motion, suggestive of mitral stenosis. In each patient, however, mitral stenosis was excluded by hemodynamic or anatomic criteria. The reason for the abnormal mitral valve motion was considered to be a reduced rate of left ventricular dias...
In patients suffering with chronic valvular disease who are diagnosed as having mitral stenosis, there are found a few who have an associated tricuspid stenosis. The diagnosis of this combination of lesions is difficult. The unique opportunity to study the hemodynamics of "pure" tricuspid stenosis was presented when a patient, originally diagnosed as mitral stenosis, had in fact both lesions, a...
development of established endocarditis and symptoms. This is particularly true in pure mitral stenosis where symptoms may not begin until 20 years after the acute attack. Mitral stenosis represents a less severe degree of valve damage than does severe mitral regurgitation or mixed lesions in which the subvalvar apparatus, the chordae and papillary muscles, are involved as well as the valve cus...
The effect of CC-chemokine receptor 7 (CCR7) and CC-chemokine ligand 19 (CCL19) on rheumatic mitral stenosis is unknown. This study aimed to explore the roles of CCR7 and CCL19 in rheumatic mitral stenosis by measuring the expression of CCR7 and CCL19 in human mitral valves from rheumatic mitral stenosis patients. Additionally, we examined their effects on human mitral valve interstitial cells ...
RATIONALE Data on nonvitamin K antagonist oral anticoagulant being used for the treatment of LAA thrombi are limited only in nonvalvular atrial fibrillation. There are no data on the antithrombotic efficacy and safety of nonvitamin K antagonist oral anticoagulant in the resolution of left atrial appendage (LAA) thrombi in patients with rheumatic mitral stenosis. PATIENT CONCERNS A 49-year-old...
In order to establish a new echocardiographic index of the severity of mitral stenosis, left ventricular echocardiograms were digitised using manual tracing and a computer. The instantaneous left ventricular dimension was measured in 15 patients with mitral stenosis. The peak rate of change of left ventricular dimension (peak dD/dt) and the normalised peak rate (peak dD/dt/D) during early diast...
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