[The atrial esophagocardiogram in the mitral prolapse syndrome].
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Biomedical subjects
Publications and source records attributed to C Longhini.
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The 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.
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Eleven patients whose ECG and VCG showed a left bundle branch block with right axial deviation (between + 90 degrees and + 150 degrees) were studied with clinical and radiological investigations. All of them had pathological abnormalities of cardiopulmonary apparatus and cardiac enlargement, but only one had congestive heart failure. The right axial deviation was due in one case to the vertical position of the heart in the chest and in three cases to conduction defects of the cardiac impulse through the left bundle branch. In the remaining cases the right axial deviation was dubious. The authors present and discuss all possible factors which could cause such deviation of QRS axis in the left bundle branch block.
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