1,720,963 research outputs found
Pharmacological basis of the therapy with calcium antagonistic drugs in cardiology
No full textBasi farmacologiche della terapia con calcioantagonisti in cardiologi
Polycardiographic study of atrial flutter
No full textThe modifications that atrial flutter determines on the phonocardiogram, apexcardiogram, carotid pulse tracing, jugular venous pulse tracing, and indirect (esophageal) left atrial pulse tracing were studied. On the basis of the data here presented and that of the literature, a polygraphic profile of atrial flutter has been constructed as follows: notable variability of the intensity and of the richness of the vibratory components of the first and second heart sound; regularly alternating intervals between successive atrial sounds, each one of which consists of two groups of vibrations; deformations of all mechanographic tracings corresponding with "F" waves of the ECG. The interpretation of various polygraphic reports contributes to the understanding of the physiopathogenesis of atrial flutter
Mechanographic evaluation of left atrial activity in mitral valve prolapse
No full textTwenty-five patients suffering from mitral valve prolapse were studied to demonstrate any diagnostic modifications of the indirect (esophageal) left atrial pulse (ESO). Valvular prolapse is demostrated on the ESO by a sudden change in slope of the curve after the "x" point, in coincidence with a midsystolic click. Late systolic mitral insufficiency, when associated with prolapse is illustrated on the ESO tracing in two ways: a) an abnormally tall "v" wave; b) a late systolic plateau which begins immediately after the click and continues beyond the second heart sound. After the infusion of methoxamine or isometric exercise the ESO is usually of the a) conformation, while after the inhalation of amyl nitrite the tracing tends to be of the b) type. The "c" wave is at times altered but not always. This alteration is characterized by a greater amplitude and sharper peak. Based on the physiopathogenesis of the alterations of the ESO, it can be stated that they are specific, and sensitive enough to be both qualitative and quantitative
Pharmacodynamic and forced test of the atrial esophagocardiogram as to its subsidiary diagnostic value in mitral valve insufficiency
No full textPharmacodynamic and exercise tests applied to the recording of left atrial esophagocardiogram may represent useful diagnostic tools in the differential diagnosis of mitral insufficienc
L'esofagocardiogramma atriale nella sindrome del prolasso mitralico [The atrial esophagocardiogram in the mitral prolapse syndrome]
No full textThe atrial esophagocardiogram in the mitral prolapse syndrom
Il comportamento dell'esofagocardiogramma atriale nelle valvulopatie mitraliche
No full textThe behavior of the atrial esophagocardiogram in mitral valve disease
L'esofagocardiogramma atriale nell'indagine poligrafica
No full textThe characteristics of the atrial esophagocardiogram in mitral valve disease
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