The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Calcification and inflammation are key pathological processes in aortic stenosis and atherosclerosis. Using combined positron emission tomography and computed tomography (PET/CT), we sought to investigate their contribution to disease progression in aortic stenosis and to help identify vulnerable atherosclerotic plaque. In the first part of the study patients with calcific aortic valve disease...
Syncope is a common and important cause of morbidity that accounts for 3% of visits to A&E and 6% of all emergency admissions. The incidence rises with age (23% of those >65 years of age have experienced syncope) and recurrence is common (60% at one year). Most cases are mediated by inappropriate vasodilation – simple faints, situational syncope (e.g. micturition syncope), and the vasovagal...
AIM: Incidental aortic valve calcification is often detected during computed tomography. The aim was to compare the severity of valvular stenosis and calcification in patients with aortic stenosis.MATERIALS AND METHODS: One hundred and fifty-seven patients aged 68+/-11 years (range: 34-85) with aortic valve stenosis underwent multislice helical computed tomography and Doppler echocardiography performed...
Dizziness affects about one-third of individuals over the age of 65 years, and is one of the most common reasons for the elderly to consult their general practitioner. Syncope affects at least 20% of the population at some time and accounts for about 6% of general medical admissions in the UK. Recurrent symptoms are particularly disabling because they affect an individual's ability to work and to...
Background: Effective endogenous fibrinolysis requires rapid release of endothelial tissue plasminogen activator (t-PA). Using the nitric oxide synthase inhibitor, L-N G -monomethylarginine (L-NMMA), we examined the contribution of endogenous nitric oxide to substance P induced t-PA release in vivo in man.Methods: Blood flow and plasma fibrinolytic and hemostatic factors were measured in...
Background: Plasma concentrations of angiotensin II, a potent vasoconstrictor peptide, are increased in patients with heart failure. Recently, losartan, a selective angiotensin II type 1 receptor antagonist, has become available for clinical investigational studies. The aims of the study were to determine the contribution of angiotensin II to basal and sympathetically stimulated arteriolar tone in...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.