نتایج جستجو برای: cardiac valve
تعداد نتایج: 361687 فیلتر نتایج به سال:
Primary cardiac tumors are very rare. Cardiac sarcomas can be detected at any age, regardless of gender. At diagnosis, these mostly symptomatic and one-third metastatic. Undifferentiated pleomorphic account for 1.7% all tumors, typically localized in the left atrium, involve mitral valve. Here we present a case atrial undifferentiated sarcoma with myogenic differentiation that clinically radiol...
Cardiac valves are essential to direct forward blood flow through the cardiac chambers efficiently. Congenital valvular defects are prevalent among newborns and can cause an immediate threat to survival as well as long-term morbidity. Valve leaflet formation is a rigorously programmed process consisting of endocardial epithelial-mesenchymal transformation (EMT), mesenchymal cell proliferation, ...
In patients with mitral valve prolapse syndrome various disturbances of cardiac rhythm can be observed such as atrial arrhythmias, ventricular tachycardias and conduction disturbances. Of timely interest are the questions of which etiology is at the basis of the arrhythmias, what is their relevance with respect to sudden cardiac death, what are the indications for treatment and which therapeuti...
Objective To establish normal reference ranges for cardiac valve crosssectional areas (CSAs) in preterm infants and their correlation with gestational age, body weight, and chronological age. Materials and Methods In a prospective study, 268 preterm babies fulfilling the criteria for inclusion were examined. Echocardiograms were performed to measure aortic, pulmonary, mitral, and tricuspid va...
A 55-year-old man with massive pulmonary thromboembolism underwent thrombolysis, pulmonary artery embolectomy and tricuspid annuloplasty. Nine months later, a mobile echogenic intra-cardiac mass was found in the tricuspid valve. Because the patient had undergone annuloplasty, thrombosis was suspected as the most likely diagnosis and thrombolytic therapy was instituted. However, the size of the ...
OBJECTIVE Cardiac manifestations of neurofibromatosis type 1 (NF1) may include hypertension, congenital heart disease, and hypertrophic cardiomyopathy. The aim of this study was to evaluate cardiac abnormalities in patients with NF1. METHODS Sixty-five NF1 patients (mean age: 9±4.48 years) were retrospectively studied. Standard electrocardiography and echocardiography were performed in all pa...
Background: Cardiac murmur and subsequently cardiac failure is one of the poor-performance causes in athletic horses. Attention to murmur character is vital during heart examination. Polo is a sport which demands very high stress on horses, which may result in more stress on cardiovascular system. Objectives: In this study we assume that high pressure on polo horses makes them more susceptible ...
Editorial Heart valve surgery in the United Kingdom: present practice and future trends The surgery of heart valve disease raises many questions. Should we conserve or replace the diseased valve? What should the replacement valve be-a homograft, a biopros-thetic valve, or a mechanical valve? Isn't valve disease becoming less common anyway? Test reports, clinical comparisons, and longitudinal fo...
Acute bioprosthetic valve thrombosis can occur after surgery and sometimes cause hemodynamic instability and cardiogenic shock. Risk factors for bioprosthetic valve thrombosis are hypercoagulability, atrial fibrillation, atrial dilatation, low cardiac function, and lack of anticoagulation therapy. The authors present a case of severe mitral stenosis due to bioprosthetic valve thrombus. The pati...
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