. Diseases of the heart and arterial system; Designed to be a practical presentation of the subject for the use of students and practitioners of medicine. e than the right. The aortic valves werefound competent, l>ut the pulnmnarv valves leaked slowly to thehydrostatic test. Looking into the j)iihiionarv artery from above, it appearedas if a nipple with a small opening at its apex projected into thevessel, and at one side near its base was a second small opening,which was closed in below by a thinner membrane (Fig. 81). Theright ventricle was hypertrophied and dilated, and the right auri-cl
. Diseases of the heart and arterial system; Designed to be a practical presentation of the subject for the use of students and practitioners of medicine. e than the right. The aortic valves werefound competent, l>ut the pulnmnarv valves leaked slowly to thehydrostatic test. Looking into the j)iihiionarv artery from above, it appearedas if a nipple with a small opening at its apex projected into thevessel, and at one side near its base was a second small opening,which was closed in below by a thinner membrane (Fig. 81). Theright ventricle was hypertrophied and dilated, and the right auri-cle was also enlarged. One cusp of the tricuspid valve showed aslight thickening ahmg its base. The mitral valves were negativeexcept a slight thickening; aortic valves were thickened along baseand margins, while small atheromatous phupies were found in thebeginning of the aorta. The left ventricle appeared slightly dilated. The interven-tricular sa;ptum was complete, but in the interauricular Sfcptum PULMONARY STENOSIS 383 there was a valve-like passage, which would not quite admit twomatches, was perhaps 3 millimetres in diiimeter, and corresponded. Fig. 81.—Heart from Case of Pulmonary Stenosis (p. 380).Line shows narrowed pulmonary orifice. in situation and shape to the foramen ovale (Fig. 82). Thus itwas seen that the intra-vitam diagnosis was confirmed in its mainfeatures. A more careful inspection of the heart, made a yearlater after having been preserved in a formalin solution, showedthat the cone which projected into the pulmonary artery, and rep-resented the semilunar valves, was made up of a uniform mem-brane, somewhat thicker than normal valves, and showed no linesor ridges that indicated the points of fusion of the cusps. Theopening at the apex was oval, measuring 15 millimetres by 8 milli-metres at its broadest point. The edges of the cone were thick-ened, and the second minute opening at its side, near its base, was 384 DISEASES OF THE HEART found to be a saccula
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