Understanding XXXX ( @entity3454 ).

@entity1 @entity662 @entity286 @entity943 @entity944 @entity3454 @entity951 @entity1162 @entity5433
In asymptomatic or symptomatic @entity1 with an audible click and late systolic murmur, @entity3454 can be assumed to be present, the pathologic-anatomical substrate of which is characterized by myxomatous changes in the mitral valve leaflets and collagen degeneration of the chordae tendineae. The conclusion that all @entity1 with a systolic click have a diseased mitral valve and are at risk of complications is probably excessive. In the presence of an unequivocally-audible click and/or late systolic murmur, an echocardiogram for confirmation of the diagnosis is not necessary. If the auscultatory findings are uncertain, an M-mode recording and, because of its high sensitivity and specificity, a two-dimensional display from the @entity1162 view should be obtained. From the apical four-chamber view, false-positive findings may be incurred. A small percentage of @entity1 with @entity3454 have complaints which can be assumed attributable to disturbances in the neuroendocrine system (Tables 1 and 3). To what extent a relationship actually exists between @entity5433 and @entity3454 and whether or not this is coincidental, remains unclear. Treatment of the symptoms with anxiolytic drugs or beta-adrenergic receptor blocking agents is only indicated for disabling complaints if reassurance and psychological support are ineffective. Complaints of @entity662 are atypical for @entity951 . Supraventricular and @entity943 may be observed (Table 3), the initial step in the management of which is to advise avoidance of irritants such as coffee, @entity286 and emotional stress. Medical treatment is only indicated for hemodynamically-meaningful @entity943 and in those @entity1 in whom an increased risk of @entity944 is present.(ABSTRACT TRUNCATED AT 250 WORDS)
