Sir, I read with interest the article on Prinzmetal's angina and coronary artery spasm by Huckell and coworkers (Br Heart J 1981; 45: 649-55). The authors mentioned the association of mitral valve prolapse in eight of their 18 patients with Prinzmetal's angina, and wondered whether this finding was causative or coincidental, or whether patients with mitral prolapse were more prone to develop co...

A study was performed in 13 patients with idiopathic mitral valve prolapse and in 21 control subjects to assess the effect of the cold pressor test on systolic motion of the mitral valve. A significant increase in blood pressure occurred in 10 patients with mitral valve prolapse and in 19 controls after immersion of one hand in ice-cold water. M-mode echocardiographic recordings from the mitral...

mitral valve prolapse (mvp) is a relatively frequent valvular abnormality. in both children and adults with mvp, an increased incidence of ventricular arrhythmias has been reported. qt dispersion, defined as the difference in duration between the longest qt interval and the shortest one, for a given set of electrocardiographic leads has been proposed as a sign of regional difference in cardiac ...

the term mitral valve prolapse (mvp) is used for a particular subset of patients with hyperadrenergic dysautonomia. it occurs when part of a leaflet or both leaflets of the mitral valve extend above the plane of the atrioventricular junction during ventricular systole. the adenylate cyclase activity in mvp dys-autonomia was studied by extraction of enzyme from the erythrocytes from 62 normal su...

introduction: body mass index (bmi) can affect cardiac morphology; however, the relationship between bmi and valvular heart diseases has not been thoroughly evaluated. this study aimed to determine the relationship between bmi and mitral valve prolapse (mvp) as one of the most common valve diseases worldwide. it can help us to better understand pathophysiology of this common disease. materials ...