Phonocardiographic study of pulmonic-systolic murmurs in children
1955; Elsevier BV; Volume: 50; Issue: 6 Linguagem: Inglês
10.1016/0002-8703(55)90269-6
ISSN1097-6744
Autores Tópico(s)Cardiac Valve Diseases and Treatments
ResumoPhonocardiographic tracings have been taken of the presumably nonpathologic murmurs of children which are heard with greatest intensity in the second intercostal space at the left sternal border (the pulmonic-systolic murmur). Tracings of forty such murmurs have been examined, and the wave forms of all of these have been found to have certain characteristics in common. The form of the pulmonic-systolic murmurs in these tracings was that of an apparently simple wave, of measurable frequency, interrupted by distortions of complex wave form at one or more points in the simple wave. Comparisons are drawn between tracings of these murmurs, those of the precordial vibratory murmur (the "twanging-string" functional murmur of Still), and those of organic murmurs of mitral valvular insufficiency. Esseva obtenite phonocardiogrammas del presumitemente non-pathologic murmures que se audi in juveniles con un maximo de intensitate in le secunde spatio intercostal al margine sinistro-sternal. Registrationes de 40 tal murmures "pulmonic-systolic" esseva examinate. Il esseva constatate que omne iste registrationes exhibiva certe identic characteristicas del forma de lor undas. In omnes le forma del murmure pulmonic-systolic esseva interrumpite in un o plure punctos per distortiones de forma undic complexe. Es presentate un comparation de iste registrationes con le registrationes de murmures vibratori precordial e con le registrationes del murmure organic de insufficientia del valvula mitral.
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